CINXE.COM
Just a moment...
<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "publications.waset.org",cType: 'non-interactive',cRay: '917c30dd8be8ef72',cH: 'fvARrB6.BdFerRyYjIjoukTYLxeeTFN4soEzqE6w5jM-1740533646-1.2.1.1-DiDVf75EoJEzwRGtn0Jqr7Aj1GzpHIXJFB8hKdjHI5TGIRrI97ELcKJg9IJVPHRf',cUPMDTk: "\/abstracts\/search?q=achievement%20model&page=9&__cf_chl_tk=7XXTp5QC9MYPiScVCvy6c3k3D4QCRGSuwXtRw0gYlkA-1740533646-1.0.1.1-V7KOi2gilHuNnnThMVM0NOVw8KXR3ZHUHw134OaDxio",cFPWv: 'b',cITimeS: '1740533646',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/abstracts\/search?q=achievement%20model&page=9&__cf_chl_f_tk=7XXTp5QC9MYPiScVCvy6c3k3D4QCRGSuwXtRw0gYlkA-1740533646-1.0.1.1-V7KOi2gilHuNnnThMVM0NOVw8KXR3ZHUHw134OaDxio",md: "QJCP4gVH.MgiWSse5HvD1dn6ZgmvprPbGnKzoHC4b4A-1740533646-1.2.1.1-Kgptg8d_MqqUTytqOQQM8K54WtQwGm1yW41Mrz.mK5byUzwUpB0E3qtgWu4jYUjbl2Z.EOqr0mGGiIhHgaZOmTh0boAxDlucF.44xQhfUcYarp6jcUXDRDtdZPo0Pev8nX1RUqJ9qnbFWWu9.ILuiE0CC0iGaUAQOJoRr6xCTIknCaWlsbQ2mt8FBAPGr599aI7KqtBD_qcuo7sWGR3wE.R77JMYO8ssD_nJsXKrlO_8Pb9D96JPkuY2mG7ZuuFZT9ZVjvV.Dd9W6muwQrzgHR7X2egVTjgI8p4R7pzQE9Pl0.3meaYEgdVi8Gl6zX2aXnuNpyK4if54YWwjH6khX7SpiTzMQ7Cc_5l5DiPW_UfZtxwUlFki_NEOvtymtWaYuN7SOeJXkA5ACnBMI0MSN5bvZc2kYtzfawQ_ofY9JYaUMSXl3EWRzqNXTT4pX0cOYCEv72eHLWSEi5jDNHY14zFm5AVnenNKegsUh5JEsL9YVmGXA7zzU4IPWsiHdfqZckCzy_mDsFnCGdzB0DGZNR3oczw3BsbWk5Du8B.r7nAlmPtoqY5HRVU7kP3DBfX034NfpO5Jh8l4nMWcmKoi9rnHcmDpA7h7wegd3K_TPeFy81oS1kvckvMXG0qiuxK_YENvU99SNyA8g.NZOFrryuUPs3C4IcBp02yTmPSFxjCTO6MG0izaWnUjq8g9WKU5LnNFJGUNUmTy5LeMtNL5zGfkh_JGA8N3HKizCNnB_dhGcD6Lf3Epaj8iEfUEGvONAOQUez2zqBdh14UIAHSQ.FdOAe5BFqRukeUG4HlzVcVwAVsPEVd.onV0JMfybwq4ZuUJ.ZjwCXCKPx2UDTdYBVPYo64QqeovlIDZPC08v0vHHj7EcJMBrKmM_ss_OJZZY91NGru6hFMZ99OnFa6C6pcG6zNGoANMpCt.bONFj4DM02nXtCqiGshN8uI6kMnME1Yrqo4anRawvJrpvbTCL_rqlHT06lJ9G0tgLP5BBuM7qCzNvsGCuBsQoxWgklQzwGvQUkGSsbAr6PG2fsxNrlJHwqCOK89L_wHS13x8kREHCAGLryMJMjJIYfos6t6236ei8eucNlTYaivPwHyWDxkYNTyyItUWZusU2Bgu6_5C5Dv2dByequ.Wr5uU0Ind6LaPVXjN0DrGosohguopAQJ9B.47QzNYYkH4XKlq3M64wpKZb5_8HCRYDJ8MyORFGnIlc7.R49oXd8q8klHCwL9X4N7J5EFbXXUEI79EMmFfgaSido125E2GuEZSEHGowVG51Vl45SFp_vUm8BYQ1r9PnpS1zW8MX6yZDBwFcImAMeWgSQ12YRs1n7leseDfRO9XANkSf.QA5xjkONI7I.ysZ_WFPfb4vdMVg6R34aA6FUnQiAgtNW5ZX7FVdgTa.0xIzGwawXs_8T_4ED9lkewtcZbmpb4xqnOknP.zkl0W_8FSawuG0LzijXmPy1_YwR9rA5YWX93yoIZVfsbD21xB36wVLDsSpL_JLup.maeyqHKXY8GDzv.N4kHBUgDDDiq7xBjydCEyTC993u_oresnSWPGuNzJpgrs2LE878v5sZekhTHoEA3o_J9CZx3aBBnFjKdM.5V5gZZMvk48TOhbufnet_k1QxHFdhjnUlFOWb_Vb3MiSu8zKSczoSP8H5pudLt_eta_qtT4bDJF7iX6oAiuAzpu_zztiHVo53JnkZfFdQNyMKuYKVBM8CfFTdJWu_XdwhE6iJJTgSnt0Z7A36RX0QhKLBNWX4_8j.bT7tXmJ4BN98QuwforKtpg1za21ZJoOIs_FTva7YHXIzFnun_gqWgtEWzBx9n9aYNQyHbJc3NKhSJdrVpjcL2pREsrz9nrDdp_GAD0q31AzjjsQfDpF43mEcD.SIdjZeKq2B82YG.oEFykWd74GcnAaapYzbnGcSAsZC8LU1c7CNlvjsnLPWs9GUWiiHTWOGAuCFe.V6spJIyu1oDO1lmE",mdrd: "wo4d9OjkgvN1W5lL6NdNbnru35plcYmisXwcBqOBaHI-1740533646-1.2.1.1-k51OIcgvMHqmBbFcfOKcvF9Lvi4d26PkR63hV8t2GJQN.gCovJhbf6iqd6tNPfc65xgNSsy3yXBq3jI7XfZk7jUayeRwIi1Y74IoIEjOwU5GMnBlbUk4vdF0SmEPJGrdsoj8IYRJxp9XNROCW9S5hCORJ.r5MzJCqFIhtlWk3_fLDgNcwVreKM19Y6MW9uUIz_eCr4iYpjex6TuNGN8wdywhy_PZpaLFUp8t3W07xNxdEkm76Yk3bKnA5eTRiVjxsLJ7z5vMsIjnRpqum.2T1PCZjvnnSxOBjJHauK9u6Sn4UF3Nb.wXoLJ0NRuwae0AUeQBFeU4S2VztFpzhO9W_RiHtIAztrGS7TaWb_qNm2oimz1U3DpvilaNsEtWvRphNsaTJoLKj3tsvlRmLpGGYheAp2aaQKOOnMwcs2VF3w0yl6F3qJE3N4Y0eIOhsmWSLdtGgzA8_uLlyuGKq5NfbD01JguzbbpjWxtnq0SJhMJfYXAUk0bj5WEcnYjdGKbL6YrkFCqvbHq0eNOE1LeiQzfb3OFkd9MjNsBYIkZKhHkka0Uu8Nr5y_xhbDn.OgJvkoOJ_QUnqRojVbyd.XtmhsxEcELNpUbn4RlMIk0zAEcEVehpimDXGWNHBViwhuKLf4HQsFrpbwlSv4IYxaB.cqXYEEYj8X1V6XrWmnlUULg.abgGiw87gXJWqstQWeW8T8kv.DdTKD6Edpy958PCMOH1W.oCs65ctuZFHtyEhb0_FqMZp1EgtzMrn8fnC_3tX2OSWePNfVUAXIFWopqp9mFKVODmP4ezbNbfiW8Eq6.PLImS9XuIu6p_4GLxowWqF8.1OVcj_xGd8aFYBCDlh3GZRGoGw14UmjP9ZQyIyUbVIssudcDbWjjIUUjIuBjqEJBnx8k7_YBOiNbPBjrrhUgPYoLYf5y8Xm99fqNw3P8E.g4oWnDiyfn5SngHKh58jPQG0j1VBgiYOocfHtM7lbr0zCxEJtd2KToY2iG1RMCCS2qmWnLs7ZAv.7sv4LQmY4Xtf.mZr._KEJHbUC2.vyupwg5CCPaatlXAZVe28XoUutCAnFE.9AXJSdUF.KkC78bEibluuS28vc_Ay3.gtqs4z5LpVsAviaJrZS04ICqcMWdfr.cjWDRNgcxCk8djWSKYBTOdeZssx1DHZb2yfMM1QjIAu1o3ylUW6CWxMYfDpiDTk6t20k9jXHsHhHCyoVtr.eQ1XfOwfSY6Bon12Nt9y.8.4xPr9IWPj7muUu03iprxHXT8afjq7TK8yBoQkqnsFvn10n8_wzPrnAXPWmesP6QvhlbOp3WvZfS4KfJqr5Sra7a1dPUa_X4.go8DneQdldfEdI7q6ziPd.kyQEQqGcd66pL1XBBhY3FRRZ7JrtZ5FXZYPa2uQ.5YwE1NU9Z4JOrtAdOumEc2KN_burC0keAEOjZetQQ8EuQSBTY4JVyx99_uHggqmtD4a6eJof38rdn8_gs_D624ZxBNLrcHoC17FJja7P3MBtU._SRa1zNy6ExArH57BAVy.g0QoEdZiTW8zI8wA5gY4BtLWpFrFonlriKbpxUlV0ZORgjiheuR1MN1hNqBmjRSgldlUn1b3Gv22kgtsxbTqVJT0_f40xLvQDcxdL0B0RsO6rUToutX9oKDisUyYpYIkoK_uviorWPupLmZXM6jjs18zOUp3lNVPb2FOW4y0PFtVmppmubMsoirDd6FA1XI8zRlJ4QsORk2PV4bG1T3Jjy.SqM_97S9giM5jJ4zSslvKxjna0LvQv8txbDjMerKqol3eZDUOPwjiOo4C5HBr5fzMS8NiLA15FZa4cVQCugBBvNmI_Vbq3JwPDOxREyVl0eDLqQB8OqzJqAz50fOncZ5TP9a2Ui9HRaJNDLDtnKdGfkc0LucQJPoqfZZBAH9V_DNS0T3F3Awr_Sn81r57wcb6FwyDptgkUDyxQ.r1dTMIv7tdesExGzWaO.8_fzQvsYBpkftaSzo43H5NfX.yKbNqQ"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=917c30dd8be8ef72';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/abstracts\/search?q=achievement%20model&page=9&__cf_chl_rt_tk=7XXTp5QC9MYPiScVCvy6c3k3D4QCRGSuwXtRw0gYlkA-1740533646-1.0.1.1-V7KOi2gilHuNnnThMVM0NOVw8KXR3ZHUHw134OaDxio" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>