Universal Journal of Educational Research, vol.7, no.6, pp.1430-1441, 2019 (Scopus)
The aim of this study is to evaluate the scientific reasoning skills of middle school 7th grade students in science course. The study group consists of 60 7th grade students (35 females and 25 males) in a public school in the city center of Ankara. The research data were collected with seven questions, developed and applied once to the students by the researcher. The first five of these were two-stage questions and the last two were one-stage questions. According to the written answers of the students to these questions, a scoring rubric consisting of Level 0, Level 1, Level 2 and Level 3 was developed by the researcher. After the rubric was developed by the researcher, the data were analyzed using descriptive analysis method. The findings of the study show that the reasoning performance of each 7th grade middle school student in the answers to the first two-stage five questions is considerably low (“Level 0”). It is thought that the results of this study may contribute to the studies of researchers, who are interested in argumentation and scientific reasoning skills in science education.