MEASURING SCIENTIFIC REASONING OF FOURTH GRADERS: VALIDATION OF THE SCIENCE-K INVENTORY IN PAPER-BASED AND COMPUTER-BASED TESTING ENVIRONMENTS

Nowadays, the assessment of student performance has become increasingly technology-based, a trend that can also be observed in the evaluation of scientific reasoning, with more and more of the formerly paper-based assessment tools moving into the digital space. The study aimed to examine the reliability and validity of the paper-based and computer-based forms of the Science-K Inventory, which assesses children's scientific reasoning in three aspects: experimentation, data interpretation, and understanding of the nature of science. The pilot study involved 84 fourth-grade Hungarian students, with 39 students taking the paper-based test and 45 students taking the computer-based test. Rasch measurements and reliability tests have indicated that both the paper-based and computer-based test versions are equally valid for assessing the scientific reasoning skills of fourth graders. Students achieved high test scores in both mediums, and there were no significant differences between boys' and girls' scientific reasoning in either test type. The novelty of this research was that the Science-K Inventory had not yet been tested in a computer-based format. The results demonstrate that the Science-K Inventory can be effectively utilized in digital testing to provide teachers with rapid and valuable information for fostering the development of their students' scientific reasoning.