Psychometric properties of second Edition of ReynoldsIntellectual Assessment Scales in Preschool Students in Islamshahr City

In this research, the "psychometric properties of the second version of the Reynolds Intellectual Scale in preschool students of Islamshahr city" have been discussed. The main question is thus elaborated whether the second version of Reynolds Intelligence Measurement Scale Is there a good psychometric Research in preschool students in Islamshahr city? The present Research is in the field of psychometric planning. The present research community consists of all preschool students in Islamshahr city. In this research, 120 cluster sampling was selected as sample. In this research, the second version of the Reynolds Intelligence Measurement Scale has been used as a Instrument which has a valid validity and validity in the original version. Finally, the research findings showed that the second version of the Reynolds Intelligence Measurement Scale using Alpha Cranbach method and SpilitHalph tests with Spearman-Brown correction had coefficients higher than 0.88 that indicated a favorable internal Consistency And the coefficient of stability in the present Research is 0.89 which indicates the repeatability of the Instrument. Also, the second Edition of the Reynolds Intellectual Assessment Scales on fluid intelligence scale and crystalline intelligence with the knowledge, verbal and total intelligence of the new Tehran-Stanford-Binet Investigating Intelligence Model has a Criteria validity (Concurrent type). Finally, using the orthogonal hierarchical factor analysis, it was determined that the "intelligence of fluid" and "crystalline intelligence" should be considered in one factor as the "intelligence profile.