Analysis of Test Items Used in an Achievement Test in Physics at Secondary Level

Abstract

Aim of present study is the analysis of test items constructed in an achievement test in the subject of physics for class IX. It is used to study the difficulty level, discrimination power and distracter analysis of each test item. The achievement test was comprised of 40 multiple choice questions. Test was administered by researcher on a sample of 250 students from Islamabad Model Schools in Sector G-9. Findings of the study showed that most of the test items fall in acceptable range of difficulty index and discrimination power. In keeping view, the findings of the study, researcher comes to know that most of the test items prove to be satisfactory regarding difficulty index and discriminating power. However, ten out of forty test items were discarded due to high or very low level of difficulty and poor discrimination power. This work is equally significant for the researchers and for the subject teachers in preparing achievement tests in order to assess performance of students with optimum level of difficulty index and discriminating power.

Keywords: Item Difficulty, Discrimination Index, Distracter Analysis and Reliability.