Özet:

The purpose of the present study is to adapt Beliefs About Standardized Tests Scale (BASTS), which is developed by Magee and Jones (2012) to Turkish, and to assess its psychometrics properties. Research was conducted on three different study groups, who consisted of 361 teachers and 192 prospective teachers during 2013-2014 education year first semester. In Turkish adaptation process of BASTS, its language equivalence was assessed and strong, positive and significant correlations were obtained between Turkish and English versions. Confirmatory Factor Analysis (CFA) showed three factors for Turkish version of BASTS scale similar to its original version. Reliability of BASTS was calculated with composite reliability which is a method based on factor loadings and errors variance obtained from CFA. As a result of reliability analysis, it was found that the composite reliability coefficients were .66 and .77 for teachers and prospective teachers respectively. The findings of the item analyses showed that all of the items in the scale were discriminatory for both teachers and prospective teachers. Based on these results, it can be concluded that Turkish version of BASTS is a valid and reliable instrument in assessing teachers’ and prospective teachers’ beliefs about standardized tests

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