Zahra Tanha; Parvin Kadivar; Jafar Hasani; mohammad hosein abdollahi
Abstract
The purpose of this study was construct and validate a questionnaire to measure personal epistemology in children. Accordingly, the 44 question with Likert scoring method was designed to have three options. Face and content validity was assessed through the survey of 10 experts and its reliability, through ...
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The purpose of this study was construct and validate a questionnaire to measure personal epistemology in children. Accordingly, the 44 question with Likert scoring method was designed to have three options. Face and content validity was assessed through the survey of 10 experts and its reliability, through the implementation of 50 students to retest interval of one month, was calculated 0/72. Then, the questionnaire was administered on 472 students (217 males and 255 females) and using factor analysis with varimax rotation method revealed five factors with higher eigenvalues: simple knowledge, certain knowledge, source of knowledge, product of knowing and justification of knowing. In order to determine validity and reliability of the scale respectively, confirmatory factor analysis and Cronbach alpha coefficients were used. Results of Confirmatory factor analysis showed a good fit to the proposed five-factor structure. Also, the total score for internal consistency through Cronbach’s alpha, was 0/85. According to the results, the scale has acceptable reliability and validity and can be used as an applicable instrument in assessing personal epistemology in children.
parvaneh kadivar; zahra tanha; mehdi Arabzadeh
Volume 1, Issue 4 , July 2011, , Pages 73-88
Abstract
The The investigation of psychometric properties of epistemological belief scale in mathematics including reliability, validity and exploratory factor analysis was the purpose of this study. To achieve this end 464 university students (149 famales and 315 males), were selected through cluster rom sampling. ...
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The The investigation of psychometric properties of epistemological belief scale in mathematics including reliability, validity and exploratory factor analysis was the purpose of this study. To achieve this end 464 university students (149 famales and 315 males), were selected through cluster rom sampling. The exploratory factor analysis were investigated through principal component method, this analysis confirmed six factors ( difficult problems, steps, understanding, word problems, effort and usefulness).To reach the concurrent validity of the scale, Schommer epistemological beliefs scale and Kloosterman and stage scale were conducted. The results of the analysis were acceptable. Test- retest reliability and internal consistency of the cronbach scale through, alpha coefficients confirmed. The results of factor analysis, conducted in the main culture and previous validity- reliability coefficient were closed to the studies. A psychometric property, of this scale allows applying to mathematical epistemological beliefs research.
