Constructin of a Test to Measure the Abstract ‎Reasoning Ability Using Item Response ‎Theory

Abstract

This study aimed at constructing a test to measure the ability of abstract reasoning by using item response theory. To achieve the objectives of the study, a preliminary multiple-choice version of 62 items was constructed. The scale was administered to a randomly selected sample of 1015 students. The un-idimensionlaity and local independence of the test were established by many different indices. The results indicated that 40 items fit the assumptions of the three-parameter logistic model with a theoretical and an empirical reliability coefficient of 0.91 and 0.89, respectively. The results of the analysis showed that the item parameters of (difficulty, discrimination and guessing) have good and acceptable indicators in psychometrics. The scale also has several validity indicators. The results showed that there are configural invariance, metric invariance and scalar invariance in the test measuring abstract reasoning ability according to gender, based on multi-group confirmatory factor analysis, This confirms the validity of the test and the results reached in the response item theory