Özet:

Success tests are among the data collection tools used to measure students’ academic performance. Therefore, the presence of valid and reliable success tests that can perfectly demonstrate student achievements in selected disciplines is of great importance. However, the research on the development of the success test is quite limited. The purpose of this research is to show the steps to be followed in the process of developing a success test to be used in scientific research in the framework of an example science unit (Recognition of the material) and to give the success test developed to the literature. In the first part of the research, 35 already selectively questioning items were prepared for 11 achievements concerning the selected unit. Based on the criteria determined by Webb (1997) for the assessment of learning achievements, the opinions obtained from field experts and experienced teachers were evaluated by the Lawshe test (1974) . In the second part of the study, the scale form was applied to 84 students who studied in the fourth grade branch in two primary schools located in the Beykoz district of Istanbul. The material analysis done with the ITEMAN program has shown that the test is valid. Pearson's correlation and Spearman Brown's reliability ratings were .85 and .83, respectively, and the test was reliable. The test developed is expected to contribute to the field of science education and will be used in related research to be done. It is believed that the described procedures will guide the creation process of valid and reliable success tests that will be developed in other branches.

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