TY - JOUR TI - The Change of Students’ Science Related Affective Characteristics over Years: The Comparison of PISA 2006-2015 Assessment AB - Purpose: In this study, it was aimed to investigate the trend of the affective characteristics related to science literacy of the students who participated in PISA 2006 and 2015 assessments from Turkey based on their responses to the common items. In this regard, the characteristics measured by common items in both assessments, which are enjoyment of science, instrumental motivation, science self-efficacy, science activities, environmental awareness and optimism were discussed. Design/Methodology/Approach: The sample of this research, that cross-sectional survey model was used, consisted of PISA 2006 and 2015 Turkey sample. Data analysis was carried out based on the common items in both assessments. The percentage distribution of the students' responses to the response categories of these items according to their years of assessment was summarized and was presented by comparative graphics. Whether there is a significant difference between the percentage distribution of students' responses to response categories according to the assessment years was analyzed by z test. Findings: According to the results of the research, between 2006-2015 assessments it was observed that there was a decrease in the rate of students who enjoyed science and had high environmental optimism; however, an increase in the rate of students with high self-efficacy and high participation in science activities. On the other hand, no significant chance was observed in students’ instrumental motivation. For the environmental awareness characteristics, increases and decreases were concluded depending on the context of the environmental problem. Highlights: The results of this study revealed that there is not a trend with a specific pattern in students’ science-related affective features over assessment years. This situation puts an emphasis for students to be competent in science literacy as they need it to understand society and nature better and determine the relationship with affective features. AU - Özyeter, Neslihan Tuğçe AU - KIZILTOPRAK, Fatma DO - 10.24106/kefdergi.755078 PY - 2021 JO - Kastamonu Eğitim Dergisi VL - 29 IS - 5 SN - 1300-8811 SP - 838 EP - 855 DB - TRDizin UR - http://search/yayin/detay/506252 ER -