DEVELOPMENT AN ACHIEVEMENT TEST ABOUT 7th GRADE “CELL AND DIVISIONS” UNIT: ANALYSIS OF VALIDITY AND RELIABILITY

Abstract

The aim of this research is to develop a measurement tool consisting of multiple choice questions that can be used to measure the academic success of students for "Cells and Divisions", which is the second unit of the 7th grade in the 2018 Science Curriculum. For this purpose, 28 questions containing all the achievements of the unit were prepared. The test was applied to 150 7th and 8th grade students studying in Ankara. As a result of the analysis, the KR20 reliability coefficient of the test was found to be 0.86. The mean of item difficulty and discrimination were 0.44 and 0.55, respectively. It has been concluded that the developed achievement test is valid and reliable at a sufficient level. The test can be used to determine students' pre-learning at the beginning of the unit and their level of success at the end of the unit.