Abstract

This study aims to develop an achievement test that has measurement reliability and validity to evaluate the achievements of 8th-grade students about seasons. When the test on seasons was examined, it was seen that there was no test development work other than the studies on misconceptions. The survey method and test development steps are used within the scope of the study. The participants of the study consisted of 347 eighth-grade students who completed the subject of seasons and studied at schools in a province in Central Anatolia and its district centers in the 2020-2021 academic year. Within the scope of the study, an achievement test including 30 multiple-choice questions on F.8.1.1 Formation of Seasons in the science curriculum published in 2018 was prepared. The validity and reliability studies of the test have been done. While preparing the indicator table for the content validity of the test, FACTOR analysis was performed to ensure the construct validity and the Kaiser-Meyer-Olkin (KMO) value was found to be 0.743. The Kuder-Richardson 20 (KR-20) reliability coefficient of the test was calculated as 0.83. It was observed that the average difficulty (pj =0.44) and average discrimination (rj =0.50) values of the items that were decided to be in the test, although there were items that were edited or removed as a result of the analysis. As a result of the study, a valid and reliable achievement test consisting of 27 items was developed on the formation of the seasons.