Systems Achievement Test: Validity and Reliability Study

With this study, it was aimed to develop a measurement tool in order to reveal the level of understanding of respiratory system, circulatory system, support and movement system topics in the systems unit of our body which is included in the curriculum of 6th grade Science course and to measure their achievement of secondary school students. 36 multiple choice question items were prepared within the scope of the study and four faculty members, one instructor and two science teachers were presented to the opinion a total of 7 experts to determine the scope validity. In order to ensure the construct validity of the test, which was corrected according to expert opinions, substance analysis was performed. A total of 158 students, 89 of whom are girl and 69 are boy participated in the pre-pilot application. After the conclusion was made that 7 substances whose discrimination was 0.19 and smaller were removed from the test, the final shape was made ready to pilot application as 23 substances. Test with 23 questions with pilot application was applying to the seventh and eighth grade students, consisting of 100 students, including 47 girls and 53 boys, and the substance analysis was repeated. Regarding the reliability of the Systems Achievement Test developed as a result of the substance analysis, Cronbach Alpha coefficient was calculated as .83, and Spearman Brown two half test correlation value was calculated as .81, a valid and reliable test was developed