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    Conceptual Analysis of Middle School Students' Cognitive Structure on the Concept of Technology Through Word Association Test
    (Cukurova Univ, 2020) Cetin, Nagihan Imer; Timur, Betul
    In this study, it is aimed to determine cognitive structures of middle school students regarding technology concept via word association test. The research is carried out with students from 5th, 6th, 7th and 8th grade (N: 201) of a middle school. The word association test is used to collect the data. The data collected from the word association test are evaluated by using the content analysis method. The concepts obtained from the content analysis are coded separately by two researchers and the average value of interrater reliability is found as 91%. As a result of the analysis of the data; it is seen that middle school students express 1571 different concepts related to the concept of technology. The concepts are divided into categories and a total of 11 categories are identified. The findings of the study show that students perceive technology as communication tool, computer, product and tool. The most remarkable finding is that students' experiences with technological tools in their everyday life are influential on their technology perceptions. As a result, it is determined that students' have limited understanding regarding technology concept.
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    Developing Achievement Test on Cell Subject for 6th Grade: A Validity and Reliability Study
    (Cukurova Univ, 2019) Timur, Serkan; Dogan, Fatih; Cetin, Nagihan Imer; Timur, Betul; Isik, Ruveyda
    In this study, it is aimed to develop a valid and reliable achievement test for the subject of Cell belonging to the 6th grade Systems in our Body unit within the scope of Science course. The achievement test was prepared as a 25-item multiple-choice test, considering the cell-related objectives in the 6th grade Science curriculum. The pilot study of the test was carried out with 62 students attending 6th grade in 2017-2018 academic year. The comprehensibility and the consistency with the scientific knowledge of the test items were prepared by the opinions of various experts in the field of science education. The item analysis was performed according to the answers of the students in the achievement test, and the discriminant and difficulty indexes were calculated for each item. After the item analysis, 3 items were excluded from the test and a Cell Achievement Test (CAT) consisting of 22 questions was obtained. The mean item difficulty of CAT was 0.652 and the mean discrimination index was 0.507.