Abstract:

In this study, a valid and reliable multiple-choice achievement test has been developed in order to measure the academic achievement of 8th grade students about the units of “States of Matter and Heat” and “Electricity in Our Life”. The pilot study of the achievement test was carried out with 30 questions which were prepared with at least one question from each gain related to unit gains. This study was conducted with 287 students having learned these subjects from two different schools in the central district of Siirt in 2017-2018 academic year. The validity and reliability studies of the achievement test items were performed. For the validity of the test, a table of specifications was prepared, and the test was examined by two faculty members and three science teachers. Item analysis and reliability analyzes of the test were performed with TAP 14.7. As a result of the analyzes, 3 items with low item discrimination index were excluded from the test. Mean discrimination index of the final test including 27 questions was found to be 0.520 and mean item difficulty index was 0.598. As a result of reliability analysis; KR20 value was calculated as 0,840 and Spearman-Brown value was 0,730. As a result of the study, a valid and reliable multiple-choice achievement test was introduced to the science education to measure the academic success of the students in the 8th grades about the units of “States of Matter and Heat “and “Electricity in Our Life”.

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