Özet:

The aim of this study is to develop a valid and reliable success test to evaluate the cooperative problem-solving skills. Today’s educational system predicts the environments in which students will both socially communicate with each other, support each other and see different perspectives, and evaluate the effects of these perspectives. One of the ways to this is the collaborative problem-solving environment. For this purpose, the achievements of the field text and the needs analysis work with teachers and students have been determined and test questions in line with these achievements have been prepared. The opinions of a teacher and a language expert were taken to determine the understandability of the test questions. The study aimed at helping to understand which questions in the collaborative problem-solving success test are suitable for what achievements and what stages. The work group is determined by the sample method. The application of the success test was carried out with 157 students studying in 4th grade. The material analysis for the materials of the success test of collaborative problem solving has been done and the differentiability and difficulty index has been calculated. The material analysis has been removed from the test and the test consisting of 21 substances has been completed. The test's average difficulty is 0.581 and the average distinctivity is 0.60. The test’s KR20 value is 0.741 and KR21 values are 0.720. The Cronbach Alpha value is 0.739 . As a result, a success test for the ability to cooperate problem-solving has been developed, consisting of four options already selectively asked questions. Keywords: Collaborative problem solving, success test, test development

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