Bilimsel Muhakeme Becerileri Testi’nin Geliştirilmesi

Abstract

The aim of this study is to develop a valid and reliable test to measure the scientific reasoning skills of Science Education students. For scientific reasoning skills, the theoretical framework which Lawson developed by reinterpreting the abstract operation period of Piaget' s mental developmental stages was based on. For the sub-dimensions set out in the theoretical framework, some questions were taken from the national and international literature and some questions were written by the researchers, a pool of questions was prepared. As a result of expert opinions about whether selected or prepared questions measure the skill in sub-dimension, a draft test consisting of 28 questions was formed. At the end of the application, two questions which was difficult to understand and interpret have been removed and the number of questions has been reduced to 26. The scope validity table of the test was prepared and the reliability calculations were made by applying the data to 303 students for pilot study. As a result of the analyzes, the reliability coefficient (Cronbach alpha) was found to be 0,76 for the Scientific Reasoning Skills Test (SRST). The mean item difficulty and discrimination index of the test were calculated by item analysis. The findings show that the developed SRST is a valid and reliable test. As a result, SRST has been prepared both in accordance with the recommendations of current research and in the scope of scientific reasoning course in the renewed Science Education program. Therefore, the test is a valid and reliable measurement tool which can be used both in the scientific studies in this field and in the class evaluation processes of scientific reasoning skills course of the science teacher candidates at undergraduate level.