Psychometric Properties of Watson–Glaser Critical Thinking Test and its Relation with Creativity

Document Type : Research Paper



The present study aims to determine the psychometric characteristics of the Watson–Glaser critical thinking test among employees in the Iranian National Oil Company. For this purpose, 380 employees referred to ‘the assessment center’in 1390-91 were selected through random sampling method  . The research method is a descriptive – instrument maling one. In which two tests were used:  1)Watson–Glaser critical thinking test, and 2) Abedi creativity test. Determining the reliability of Watson–Glaser critical thinking test in terms of its components and the whole test through Cronbach alpha and retest, respectively, was indicative of the suitability of the extracted items and factors. The test validity was examined via construct validity (factor analysis), the results indicated the existence of fine factors, which totally could account for about 48/62 of the variance of the whole test. The relation between Watson–Glaser critical thinking test and creativity was examined through Pearson correlation method; it suggested that there is no significant relation between critical thinking and creativity. Therefore, it can be concluded that Watson–Glaser critical thinking test enjoys a suitable level of validity and reliability to assess critical thinking among organizational employees.