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Order of acquisition - Wikipedia
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width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Order_of_acquisition" title="Special:EditPage/Order of acquisition">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Order+of+acquisition%22">"Order of acquisition"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Order+of+acquisition%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Order+of+acquisition%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Order+of+acquisition%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Order+of+acquisition%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Order+of+acquisition%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">June 2019</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Second-language_acquisition" title="Second-language acquisition">Second-language acquisition</a></div> <p>The <b>order of acquisition</b> is a concept in <a href="/wiki/Language_acquisition" title="Language acquisition">language acquisition</a> describing the specific order in which all language learners acquire the grammatical features of their first language (L1). This concept is based on the observation that all children acquire their first language in a fixed, universal order, regardless of the specific grammatical structure of the language they learn. Linguistic research has largely confirmed that this phenomenon is true for first-language learners; order of acquisition for second-language learners is much less consistent. It is not clear why the order differs for second-language (L2) learners, though current research suggests this variability may stem from first-language interference or general cognitive interference from nonlinguistic mental faculties. </p> <div class="mw-heading mw-heading2"><h2 id="Research_background">Research background</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Order_of_acquisition&action=edit&section=1" title="Edit section: Research background"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Researchers have found a very consistent order in the acquisition of first-language structures by children, which has drawn interest from Second Language Acquisition (SLA) scholars. Considerable effort has been devoted to testing the "identity hypothesis", which asserts that first and second language acquisitions may conform to similar patterns. This, however, has not been confirmed, perhaps because second-language learners' cognition and affect states are more developed. The two may have common neurological bases, but no convincing scientific evidence supports this hypothesis. </p><p>Brown (1973) conducted a study<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> on the acquisition of 14 grammatical morphemes by three English-speaking children and found that their developmental patterns were remarkably similar. This study is said to have initiated research in the field of SLA to investigate whether the patterns of L1 and L2 acquisition are also similar. </p><p>Dulay and Burt<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> produced a highly cited and classic study in this area. They investigated the acquisition order of eight grammatical morphemes (progressive -ing, plural -s, irregular past tense, possessive 's, articles, third-person singular -s, copula be, and auxiliary be) among children learning English as a second language. Their study included 95 Mexican-American children, 26 Spanish-speaking children, and 30 Puerto Rican children. The researchers predicted that the three groups would exhibit the same acquisition order, but that this order would differ from what is observed in first language acquisition. This was based on the assumption that the semantic distinctions second language learners already possess would influence the mapping of semantic functions to morphemes. </p><p>Followed by studies<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> that showed similar patterns for L2 acquisition, the view that the order of morpheme acquisition of English is consistent and relatively independent of the <a href="/wiki/First_language" title="First language">L1</a> has been dominant ever since,<sup id="cite_ref-:0_4-0" class="reference"><a href="#cite_note-:0-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> but recent studies<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> have expressed results that challenge this view, and maintain that the morpheme acquisition order is at least partly L1-dependent.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> to this claim. </p><p>For example, these are reviewed by Ellis.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> They show that learners begin by omitting pronouns or using them indiscriminately: for example, using "I" to refer to all agents. Learners then acquire a single pronoun feature, often person, followed by number and eventually by gender. Little evidence of interference from the learner's first language has been found; it appears that learners use pronouns based entirely on their <a href="/wiki/Inference" title="Inference">inferences</a> about target language structure. </p><p>More recent studies have shown that universality and individuality coexist in the order of grammatical item acquisition. For example, a large-scale investigation<sup id="cite_ref-:0_4-1" class="reference"><a href="#cite_note-:0-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> was conducted on the acquisition of six English grammatical morphemes (articles, past tense, plural -s, possessive 's, progressive -ing, and third-person singular -s) among learner groups with seven different native languages: Japanese, Korean, Spanish, Russian, Turkish, German, and French. This study revealed that some grammatical items are heavily influenced by the learner's L1, while others are not. Specifically, items such as articles, tense, and the progressive aspect are particularly challenging for learners whose native languages, like Japanese and Korean, do not explicitly express these features. On the other hand, items like the third-person singular -s tend to be less influenced by the learner's native language. In contrast, articles and the progressive -ing have been confirmed to be strongly affected by the learners' L1. </p><p>Kasper and Rose also have thoroughly researched the sequence of acquisition of pragmatic features.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> In both fields, consistent patterns have emerged and have been the object of considerable theorizing. </p> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Order_of_acquisition&action=edit&section=2" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width reflist-columns-3"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a href="#CITEREFBrown1973">Brown 1973</a>.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFDulayBurt1973" class="citation journal cs1">Dulay, Heidi C.; Burt, Marina K. (1973). <a rel="nofollow" class="external text" href="https://onlinelibrary.wiley.com/doi/10.1111/j.1467-1770.1973.tb00659.x">"Should We Teach Children Syntax?"</a>. <i>Language Learning</i>. <b>23</b> (2): <span class="nowrap">245–</span>258. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1467-1770.1973.tb00659.x">10.1111/j.1467-1770.1973.tb00659.x</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1467-9922">1467-9922</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Language+Learning&rft.atitle=Should+We+Teach+Children+Syntax%3F&rft.volume=23&rft.issue=2&rft.pages=%3Cspan+class%3D%22nowrap%22%3E245-%3C%2Fspan%3E258&rft.date=1973&rft_id=info%3Adoi%2F10.1111%2Fj.1467-1770.1973.tb00659.x&rft.issn=1467-9922&rft.aulast=Dulay&rft.aufirst=Heidi+C.&rft.au=Burt%2C+Marina+K.&rft_id=https%3A%2F%2Fonlinelibrary.wiley.com%2Fdoi%2F10.1111%2Fj.1467-1770.1973.tb00659.x&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDulayBurt1974" class="citation journal cs1">Dulay, Heidi C.; Burt, Marina K. (1974-01-01). "Natural Sequences in Child Second Language Acquisition1". <i>Language Learning</i>. <b>24</b> (1): <span class="nowrap">37–</span>53. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1467-1770.1974.tb00234.x">10.1111/j.1467-1770.1974.tb00234.x</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1467-9922">1467-9922</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Language+Learning&rft.atitle=Natural+Sequences+in+Child+Second+Language+Acquisition1&rft.volume=24&rft.issue=1&rft.pages=%3Cspan+class%3D%22nowrap%22%3E37-%3C%2Fspan%3E53&rft.date=1974-01-01&rft_id=info%3Adoi%2F10.1111%2Fj.1467-1770.1974.tb00234.x&rft.issn=1467-9922&rft.aulast=Dulay&rft.aufirst=Heidi+C.&rft.au=Burt%2C+Marina+K.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></span> </li> <li id="cite_note-:0-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_4-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMurakamiAlexopoulou2016" class="citation journal cs1">Murakami, Akira; Alexopoulou, Theodora (2016-09-01). <a rel="nofollow" class="external text" href="https://doi.org/10.1017%2FS0272263115000352">"L1 INFLUENCE ON THE ACQUISITION ORDER OF ENGLISH GRAMMATICAL MORPHEMES: A Learner Corpus Study"</a>. <i>Studies in Second Language Acquisition</i>. <b>38</b> (3): <span class="nowrap">365–</span>401. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1017%2FS0272263115000352">10.1017/S0272263115000352</a></span>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0272-2631">0272-2631</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Studies+in+Second+Language+Acquisition&rft.atitle=L1+INFLUENCE+ON+THE+ACQUISITION+ORDER+OF+ENGLISH+GRAMMATICAL+MORPHEMES%3A+A+Learner+Corpus+Study&rft.volume=38&rft.issue=3&rft.pages=%3Cspan+class%3D%22nowrap%22%3E365-%3C%2Fspan%3E401&rft.date=2016-09-01&rft_id=info%3Adoi%2F10.1017%2FS0272263115000352&rft.issn=0272-2631&rft.aulast=Murakami&rft.aufirst=Akira&rft.au=Alexopoulou%2C+Theodora&rft_id=https%3A%2F%2Fdoi.org%2F10.1017%252FS0272263115000352&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLukShirai2009" class="citation journal cs1">Luk, Zoe Pei-sui; Shirai, Yasuhiro (2009-12-01). <a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1467-9922.2009.00524.x">"Is the Acquisition Order of Grammatical Morphemes Impervious to L1 Knowledge? Evidence From the Acquisition of Plural -s, Articles, and Possessive 's"</a>. <i>Language Learning</i>. <b>59</b> (4): <span class="nowrap">721–</span>754. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1467-9922.2009.00524.x">10.1111/j.1467-9922.2009.00524.x</a></span>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1467-9922">1467-9922</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Language+Learning&rft.atitle=Is+the+Acquisition+Order+of+Grammatical+Morphemes+Impervious+to+L1+Knowledge%3F+Evidence+From+the+Acquisition+of+Plural+-s%2C+Articles%2C+and+Possessive+%27s&rft.volume=59&rft.issue=4&rft.pages=%3Cspan+class%3D%22nowrap%22%3E721-%3C%2Fspan%3E754&rft.date=2009-12-01&rft_id=info%3Adoi%2F10.1111%2Fj.1467-9922.2009.00524.x&rft.issn=1467-9922&rft.aulast=Luk&rft.aufirst=Zoe+Pei-sui&rft.au=Shirai%2C+Yasuhiro&rft_id=https%3A%2F%2Fdoi.org%2F10.1111%252Fj.1467-9922.2009.00524.x&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLukShirai2009" class="citation journal cs1">Luk, Zoe Pei-sui; Shirai, Yasuhiro (2009). <a rel="nofollow" class="external text" href="https://onlinelibrary.wiley.com/doi/10.1111/j.1467-9922.2009.00524.x">"Is the Acquisition Order of Grammatical Morphemes Impervious to L1 Knowledge? Evidence From the Acquisition of Plural -s, Articles, and Possessive 's"</a>. <i>Language Learning</i>. <b>59</b> (4): <span class="nowrap">721–</span>754. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1467-9922.2009.00524.x">10.1111/j.1467-9922.2009.00524.x</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1467-9922">1467-9922</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Language+Learning&rft.atitle=Is+the+Acquisition+Order+of+Grammatical+Morphemes+Impervious+to+L1+Knowledge%3F+Evidence+From+the+Acquisition+of+Plural+-s%2C+Articles%2C+and+Possessive+%E2%80%99s&rft.volume=59&rft.issue=4&rft.pages=%3Cspan+class%3D%22nowrap%22%3E721-%3C%2Fspan%3E754&rft.date=2009&rft_id=info%3Adoi%2F10.1111%2Fj.1467-9922.2009.00524.x&rft.issn=1467-9922&rft.aulast=Luk&rft.aufirst=Zoe+Pei-sui&rft.au=Shirai%2C+Yasuhiro&rft_id=https%3A%2F%2Fonlinelibrary.wiley.com%2Fdoi%2F10.1111%2Fj.1467-9922.2009.00524.x&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><a href="#CITEREFEllis1994">Ellis 1994</a>, pp. 96–99.</span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><a href="#CITEREFKasperRose2002">Kasper & Rose 2002</a>.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Order_of_acquisition&action=edit&section=3" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBrown1973" class="citation book cs1">Brown, Roger (1973). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/firstlanguage00brow"><i>A first language: The early stages</i></a></span>. Harvard University Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780674732469" title="Special:BookSources/9780674732469"><bdi>9780674732469</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=A+first+language%3A+The+early+stages&rft.pub=Harvard+University+Press&rft.date=1973&rft.isbn=9780674732469&rft.aulast=Brown&rft.aufirst=Roger&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Ffirstlanguage00brow&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFEllis1994" class="citation book cs1">Ellis, Rod (1994). <i>The Study of Second Language Acquisition</i>. Oxford University Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780194371896" title="Special:BookSources/9780194371896"><bdi>9780194371896</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Study+of+Second+Language+Acquisition&rft.pub=Oxford+University+Press&rft.date=1994&rft.isbn=9780194371896&rft.aulast=Ellis&rft.aufirst=Rod&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKasperRose2002" class="citation journal cs1">Kasper, G.; Rose, K. R. (2002). "Pragmatic Development in a Second Language". <i>Language Learning</i>. <b>52</b> (Supplement 1): <span class="nowrap">13–</span>62. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1467-1770.2002.tb00023.x">10.1111/j.1467-1770.2002.tb00023.x</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Language+Learning&rft.atitle=Pragmatic+Development+in+a+Second+Language&rft.volume=52&rft.issue=Supplement+1&rft.pages=%3Cspan+class%3D%22nowrap%22%3E13-%3C%2Fspan%3E62&rft.date=2002&rft_id=info%3Adoi%2F10.1111%2Fj.1467-1770.2002.tb00023.x&rft.aulast=Kasper&rft.aufirst=G.&rft.au=Rose%2C+K.+R.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSeidner1982" class="citation book cs1">Seidner, S. S. (1982). <i>Ethnicity, Language, and Power from a Psycholinguistic Perspective</i>. Centre de recherche sur le pluralinguisme.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Ethnicity%2C+Language%2C+and+Power+from+a+Psycholinguistic+Perspective&rft.pub=Centre+de+recherche+sur+le+pluralinguisme&rft.date=1982&rft.aulast=Seidner&rft.aufirst=S.+S.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrder+of+acquisition" class="Z3988"></span></li></ul> </div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output 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.navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Second-language_acquisition372" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:SLA_topics" title="Template:SLA topics"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:SLA_topics" title="Template talk:SLA topics"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:SLA_topics" title="Special:EditPage/Template:SLA topics"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Second-language_acquisition372" style="font-size:114%;margin:0 4em"><a href="/wiki/Second-language_acquisition" title="Second-language acquisition">Second-language acquisition</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">General</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Outline_of_second-language_acquisition" title="Outline of second-language acquisition">Outline</a></li> <li><a href="/wiki/List_of_common_misconceptions_about_language_learning" title="List of common misconceptions about language learning">Common misconceptions</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Subfields</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Second_language_attrition" class="mw-redirect" title="Second language attrition">Attrition</a></li> <li><a href="/wiki/Second-language_acquisition_classroom_research" title="Second-language acquisition classroom research">Classroom research</a></li> <li><a href="/wiki/Second-language_education" class="mw-redirect" title="Second-language education">Education</a></li> <li><a href="/wiki/Second_language_phonology" class="mw-redirect" title="Second language phonology">Phonology</a></li> <li><a href="/wiki/Second_language_writing" title="Second language writing">Writing</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Learners</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Multilingualism" title="Multilingualism">Multilingualism</a></li> <li><a href="/wiki/Heritage_language_learning" title="Heritage language learning">Heritage language</a></li> <li><a href="/wiki/Multi-competence" title="Multi-competence">Multi-competence</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Learner language</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Contrastive_analysis" title="Contrastive analysis">Contrastive analysis</a></li> <li><a href="/wiki/Contrastive_rhetoric" title="Contrastive rhetoric">Contrastive rhetoric</a></li> <li><a href="/wiki/Error_(linguistics)" title="Error (linguistics)">Error (linguistics)</a></li> <li><a href="/wiki/Error_analysis_(linguistics)" title="Error analysis (linguistics)">Error analysis</a></li> <li><a href="/wiki/Error_treatment_(linguistics)" title="Error treatment (linguistics)">Error treatment</a></li> <li><a href="/wiki/Interlanguage" title="Interlanguage">Interlanguage</a></li> <li><a href="/wiki/Silent_period" title="Silent period">Silent period</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Linguistic factors</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Language_transfer" title="Language transfer">Language transfer</a></li> <li><a href="/wiki/Linguistic_universal" title="Linguistic universal">Linguistic universal</a></li> <li><a href="/wiki/Word_lists_by_frequency" class="mw-redirect" title="Word lists by frequency">Word lists by frequency</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Individual_variation_in_second_language_acquisition" class="mw-redirect" title="Individual variation in second language acquisition">Individual variation</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Language-learning_aptitude" title="Language-learning aptitude">Language-learning aptitude</a></li> <li><a href="/wiki/Critical_period_hypothesis" title="Critical period hypothesis">Critical period hypothesis</a></li> <li><a href="/wiki/Motivation_in_second-language_learning" title="Motivation in second-language learning">Motivation</a></li> <li><a href="/wiki/Willingness_to_communicate" title="Willingness to communicate">Willingness to communicate</a></li> <li><a href="/wiki/Foreign_language_anxiety" title="Foreign language anxiety">Foreign language anxiety</a></li> <li><a href="/wiki/Metalinguistic_awareness" title="Metalinguistic awareness">Metalinguistic awareness</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Strategies</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Language_learning_strategies" title="Language learning strategies">Language learning strategies</a></li> <li><a href="/wiki/Communication_strategies_in_second_language_acquisition" class="mw-redirect" title="Communication strategies in second language acquisition">Communication strategies</a></li> <li><a href="/wiki/Code-switching" title="Code-switching">Code-switching</a></li> <li><a href="/wiki/Good_language_learner_studies" title="Good language learner studies">Good language learner studies</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Theories_of_second-language_acquisition" title="Theories of second-language acquisition">SLA hypotheses</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Competition_model" title="Competition model">Competition model</a></li> <li><a href="/wiki/Comprehensible_output" title="Comprehensible output">Comprehensible output</a></li> <li><a href="/wiki/Connectionism" title="Connectionism">Connectionism</a></li> <li><a href="/wiki/Dynamic_approach_to_second_language_development" class="mw-redirect" title="Dynamic approach to second language development">Dynamic Systems Theory</a></li> <li><a href="/wiki/Generative_second-language_acquisition" title="Generative second-language acquisition">Generative second-language acquisition</a></li> <li><a href="/wiki/Input_hypothesis" title="Input hypothesis">Input hypothesis</a></li> <li><a href="/wiki/Interaction_hypothesis" title="Interaction hypothesis">Interaction hypothesis</a></li> <li><a href="/wiki/Interface_hypothesis" title="Interface hypothesis">Interface hypothesis</a></li> <li><a href="/wiki/Interface_position" title="Interface position">Interface position</a></li> <li><a href="/wiki/Noticing_hypothesis" title="Noticing hypothesis">Noticing hypothesis</a></li> <li><a href="/wiki/Processability_theory" title="Processability theory">Processability theory</a></li> <li><a class="mw-selflink selflink">Order of acquisition</a></li> <li><a href="/wiki/Skill-based_theories_of_second-language_acquisition" title="Skill-based theories of second-language acquisition">Skill-based theories</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Second_language_acquisition_classroom_research" class="mw-redirect" title="Second language acquisition classroom research">In the classroom</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Focus_on_form" title="Focus on form">Focus on form</a></li> <li><a href="/wiki/Input_enhancement" title="Input enhancement">Input enhancement</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Aptitude tests</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Modern_Language_Aptitude_Test" title="Modern Language Aptitude Test">MLAT</a></li> <li><a href="/wiki/Defense_Language_Aptitude_Battery" title="Defense Language Aptitude Battery">DLAB</a></li> <li><a href="/wiki/Pimsleur_Language_Aptitude_Battery" title="Pimsleur Language Aptitude Battery">PLAB</a></li> <li><a href="/wiki/CANAL-F" title="CANAL-F">CANAL-F</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Notable researchers</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Charles_Alderson" title="Charles Alderson">Alderson</a></li> <li><a href="/wiki/Alexander_Arg%C3%BCelles" title="Alexander Argüelles">Argüelles</a></li> <li><a href="/wiki/Ellen_Bialystok" title="Ellen Bialystok">Bialystok</a></li> <li><a href="/wiki/John_Bissell_Carroll" title="John Bissell Carroll">Carroll</a></li> <li><a href="/wiki/Scott_Crossley" title="Scott Crossley">Crossley</a></li> <li><a href="/wiki/Kata_Csiz%C3%A9r" title="Kata Csizér">Csizér</a></li> <li><a href="/wiki/Alister_Cumming" title="Alister Cumming">Cumming</a></li> <li><a href="/wiki/Kees_de_Bot" title="Kees de Bot">de Bot</a></li> <li><a href="/wiki/H._Douglas_Brown" title="H. Douglas Brown">Brown</a></li> <li><a href="/wiki/Martin_Bygate" title="Martin Bygate">Bygate</a></li> <li><a href="/wiki/Pit_Corder" title="Pit Corder">Corder</a></li> <li><a href="/wiki/Marijn_van_Dijk" title="Marijn van Dijk">van Dijk</a></li> <li><a href="/wiki/Zolt%C3%A1n_D%C3%B6rnyei" title="Zoltán Dörnyei">Dörnyei</a></li> <li><a href="/wiki/Nick_Ellis" title="Nick Ellis">Ellis</a></li> <li><a href="/wiki/Rod_Ellis" title="Rod Ellis">Ellis</a></li> <li><a href="/wiki/Susan_M._Ervin-Tripp" title="Susan M. Ervin-Tripp">Ervin-Tripp</a></li> <li><a href="/wiki/Suzanne_Flynn" title="Suzanne Flynn">Flynn</a></li> <li><a href="/wiki/Susan_Gass" title="Susan Gass">Gass</a></li> <li><a href="/wiki/Paul_van_Geert" title="Paul van Geert">van Geert</a></li> <li><a href="/wiki/David_W._Green_(psychologist)" title="David W. Green (psychologist)">Green</a></li> <li><a href="/wiki/Fran%C3%A7ois_Grosjean" title="François Grosjean">Grosjean</a></li> <li><a href="/wiki/Martin_Guardado" title="Martin Guardado">Guardado</a></li> <li><a href="/wiki/Luke_Harding" title="Luke Harding">Harding</a></li> <li><a href="/wiki/Scott_Jarvis" title="Scott Jarvis">Jarvis</a></li> <li><a href="/wiki/Keith_Johnson_(applied_linguist)" title="Keith Johnson (applied linguist)">Johnson</a></li> <li><a href="/wiki/Judit_Kormos" title="Judit Kormos">Kormos</a></li> <li><a href="/wiki/Stephen_Krashen" title="Stephen Krashen">Krashen</a></li> <li><a href="/wiki/Judith_F._Kroll" title="Judith F. Kroll">Kroll</a></li> <li><a href="/wiki/Diane_Larsen-Freeman" title="Diane Larsen-Freeman">Larsen-Freeman</a></li> <li><a href="/wiki/Ping_Li_(psychologist)" title="Ping Li (psychologist)">Li</a></li> <li><a href="/wiki/Michael_Long_(academic)" class="mw-redirect" title="Michael Long (academic)">Long</a></li> <li><a href="/wiki/Wander_Lowie" title="Wander Lowie">Lowie</a></li> <li><a href="/wiki/Alison_Mackey" title="Alison Mackey">Mackey</a></li> <li><a href="/wiki/Brian_MacWhinney" title="Brian MacWhinney">MacWhinney</a></li> <li><a href="/wiki/Rosa_Manch%C3%B3n" title="Rosa Manchón">Manchón</a></li> <li><a href="/wiki/Viorica_Marian" title="Viorica Marian">Marian</a></li> <li><a href="/wiki/Paul_Kei_Matsuda" title="Paul Kei Matsuda">Matsuda</a></li> <li><a href="/wiki/Stephen_Matthews_(linguist)" title="Stephen Matthews (linguist)">Matthews</a></li> <li><a href="/wiki/Jurgen_M._Meisel" title="Jurgen M. Meisel">Meisel</a></li> <li><a href="/wiki/Carol_Myers-Scotton" title="Carol Myers-Scotton">Myers-Scotton</a></li> <li><a href="/wiki/Paul_Nation" title="Paul Nation">Nation</a></li> <li><a href="/wiki/Lourdes_Ortega" title="Lourdes Ortega">Ortega</a></li> <li><a href="/wiki/Teresa_P._Pica" title="Teresa P. Pica">Pica</a></li> <li><a href="/wiki/Charlene_Polio" title="Charlene Polio">Polio</a></li> <li><a href="/wiki/Paul_Pimsleur" title="Paul Pimsleur">Pimsleur</a></li> <li><a href="/wiki/Wilga_Rivers" title="Wilga Rivers">Rivers</a></li> <li><a href="/wiki/Richard_Schmidt_(linguist)" title="Richard Schmidt (linguist)">Schmidt</a></li> <li><a href="/wiki/Norbert_Schmitt" title="Norbert Schmitt">Schmitt</a></li> <li><a href="/wiki/Carmen_Silva-Corvalan" title="Carmen Silva-Corvalan">Silva-Corvalan</a></li> <li><a href="/wiki/Dan_Slobin" title="Dan Slobin">Slobin</a></li> <li><a href="/wiki/Neomy_Storch" title="Neomy Storch">Storch</a></li> <li><a href="/wiki/Merrill_Swain" title="Merrill Swain">Swain</a></li> <li><a href="/wiki/Tracy_D._Terrell" title="Tracy D. Terrell">Terrell</a></li> <li><a href="/wiki/Michael_T._Ullman" title="Michael T. Ullman">Ullman</a></li> <li><a href="/wiki/Jyotsna_Vaid" title="Jyotsna Vaid">Vaid</a></li> <li><a href="/wiki/Bill_VanPatten" title="Bill VanPatten">VanPatten</a></li> <li><a href="/wiki/Marjolijn_Verspoor" title="Marjolijn Verspoor">Verspoor</a></li> <li><a href="/wiki/Lydia_White" title="Lydia White">White</a></li> <li><a href="/wiki/Alison_Wray" title="Alison Wray">Wray</a></li> <li><a href="/wiki/Virginia_Yip" title="Virginia Yip">Yip</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Associations</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/European_Association_for_the_Teaching_of_Academic_Writing" title="European Association for the Teaching of Academic Writing">European Association for the Teaching of Academic Writing</a></li> <li><a href="/wiki/European_Second_Language_Association" title="European Second Language Association">EUROSLA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Computational tools</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Coh-Metrix" title="Coh-Metrix">Coh-Metrix</a></li> <li><a href="/wiki/L2_Syntactic_Complexity_Analyzer" title="L2 Syntactic Complexity Analyzer">L2 Syntactic Complexity Analyzer</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Journals</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Applied_Linguistics_(journal)" title="Applied Linguistics (journal)">Applied Linguistics</a></li> <li><a href="/wiki/Bilingualism:_Language_and_Cognition" title="Bilingualism: Language and Cognition">Bilingualism: Language and Cognition</a></li> <li><a href="/wiki/Language_Learning_(journal)" title="Language Learning (journal)">Language Learning</a></li> <li><a href="/wiki/Language_Testing" title="Language Testing">Language Testing</a></li> <li><a href="/wiki/Journal_of_Second_Language_Writing" title="Journal of Second Language Writing">Journal of Second Language Writing</a></li> <li><a href="/wiki/System_(journal)" title="System (journal)">System</a></li> <li><a href="/wiki/TESOL_Journal" title="TESOL Journal">TESOL Journal</a></li> <li><a href="/wiki/TESOL_Quarterly" title="TESOL Quarterly">TESOL Quarterly</a></li> <li><a href="/wiki/The_Modern_Language_Journal" title="The Modern Language Journal">The Modern Language Journal</a></li></ul> </div></td></tr></tbody></table></div> <!-- NewPP limit report Parsed by mw‐web.codfw.canary‐55fd9d4764‐blk6c Cached time: 20250214050956 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1] CPU time usage: 0.344 seconds Real time usage: 0.417 seconds Preprocessor visited node count: 789/1000000 Post‐expand include size: 53762/2097152 bytes Template argument size: 100/2097152 bytes Highest expansion depth: 9/100 Expensive parser function count: 3/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 41729/5000000 bytes Lua time usage: 0.237/10.000 seconds Lua memory usage: 6712870/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 368.222 1 -total 42.49% 156.448 1 Template:Reflist 28.13% 103.584 6 Template:Cite_journal 21.94% 80.797 1 Template:SLA_topics 20.89% 76.921 1 Template:Navbox 20.36% 74.984 1 Template:More_citations_needed 16.65% 61.317 1 Template:Ambox 8.68% 31.968 3 Template:Harvnb 5.48% 20.196 1 Template:Main_article 4.27% 15.736 3 Template:Cite_book --> <!-- Saved in parser cache with key enwiki:pcache:29656039:|#|:idhash:canonical and timestamp 20250214050956 and revision id 1265731553. 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