Comparison of Chemistry and Physics Test Questions in the 2019-2023 Higher Education Institutions Entrance Exams in Terms of Content Validity

In the study, a total of 100 questions from the physics test in the Basic Proficiency Test (TYT) and Field Proficiency Tests (AYT) of the Higher Education Entrance Examinations (YKS) between 2019-2023 were analyzed within the framework of the 2018 Secondary Education Physics Curriculum (MoNE, 2018). The findings were carefully compared with the results of previous studies by Gacanoğlu (2024), Gacanoğlu and Nakiboğlu (2022), and Gacanoğlu and Nakiboğlu (2024) In the first part of analysis, it was found that, among the 213 learning achievements outlined in the 2018 physics curriculum, most questions were derived from the"Force and Motion" unit of the 9th-and 11th-grades. This indicated a lack of homogeneity in the distribution of questions across TYT and AYT physics tests. Nevertheless, it was ultimately concluded that the content validity of the YKS physics test questions was generally preserved, as questions addressed learning achievements from curriculum units. In the second part of the study, the content validity of the YKS physics and chemistry test questions was compared based on curriculum alignment. Although the chemistry test contained the highest number of achievement-based questions, its content validity was lower than that of the physics test due to the lack of questions on certain topics.