The Content Validity of Digital Test Items for Evaluation Courses Based on Superitem-Wondershare Using Aiken’s Calculation

Abstract

The digital test item for evaluation courses that is designed with tiered arrangements use super item concept and is showed digitally use the Wondershare application makes it easy for students to practice the quality of their critical thinking in working on test questions whenever and wherever they are. But to get the good quality test items, then it is still necessary to test the item validity properly and accurately. The method that can be done to determine the valid test items is through calculating the validity of the items uses the Aiken model. Based on those matters, the purpose of this study was to show the calculation process of the test items validity uses the Aiken model. Subjects that were involved in the calculated process the validation of each test item were four experts, including two experts in the field of evaluation and two experts in the field of informatics engineering. The tool was used to assess the test items was a questionnaire consisting of 42 question items. The method used to analyze the test items was by comparing the results of the test item validation used the Aiken model with the validation classification according to Guilford. The study results were showed that from 42 test items tested; there were two invalid items and 40 valid items.