Development of Visual Literacy Test Instrument on High School Physics Material

Abstract

Developing test instruments that can be used to determine students' visual literacy skills on the subject of optics is the aim of this research. This research is a research development with the method of developing test instruments. The phases used in this study consisted of setting test objectives, determining competencies and the material being tested, compiling item distribution matrices, compiling test draft or blueprints, writing and assembling test items, compiling scoring rubrics, the validity of test items, revisions to improve items test, instrument assembly. The instrument used in this study was a questionnaire for the validation of the product being developed. The product developed was in the form of a test instrument to find out visual literacy skills with a multiple-choice format consisting of 5 items. The validation of the test instrument was carried out by 7 expert validators to assess the suitability of the questions on the test instrument with the available assessment indicators. The responses from the validators were analyzed using the Aiken V equation to determine the results of the content validity. The results of the content validity of the visual literacy skills test instrument on each item are 1; 0.93; 0.93; 1; and 0.93. These results provide the conclusion that the visual literacy skills test instrument is contentedly valid appropriate. This research has not been tested for reliability due to the constraints of the COVID-19 pandemic which has closed most schools and made it difficult to carry out reliability tests.