The Scientific analysis of tests Based on Classic theory and latent trait theory

Subject Areas : Journal of Educational Psychology

Mohammad Ali Ahmadvand ¹ ( Assistant professor. Islamic Azad University. Tehran South Branch )

Received: 2009-08-06 Accepted : 2009-11-02 Published : 2009-11-22

Keywords: evaluation, difficulty index, discrimination index, latent trait theory,

Abstract :

Scientific test analysis is most popular means for the evaluation of student at universities. In order to study the quality of evalition at teacher training faculty, 4fields of study. Namely psychology was randomly chosen. Students answer sheets were analyzed in those 4 teats. The aim of study was to check the reliability and validity, difficulty index and discrimination index of the tests. The hypothesis of research was that statistic indicates of reliability and validity is outside the optimized level in 4tests. The finding of research indicated that between 25 till 57% of the items related to4tests are unsuitable and the difficulty index, discriminative index, validity and reliability of the tests are outside the optimized level.