The purpose of this study was to examine the psychometric properties of the Watson-Glaser Critical thinking Appraisal -Short form (WGCTA-S) - as a tool that measures critical thinking.It comprises 40 items that measure five skills: inference, recognition of assumptions, deduction, interpretation and evolution of argument within (16) different scenarios.The test was administered to a random sample of 400 students from the Teachers College.The results revealed that Adult the (WGCTA-S) is a valid and reliable test.
Factor analysis revealed five factors identifying the same factors of the original instrument.The correlation coefficients ranged between dimensions and total score for the test between (0.301 - 0.801) which shows the construct validity, and the reliability of test re-test was (0.
78) and alpha was (0.80).The results of the study found differences between students of theoretical and scientific departments on (WGCTA-S) in the favor of Brow Set the students of scientific departments.The study also found differences between students of high academic achievement and low academic achievement on (WGCTA-S) in favor of the of high academic achievement.