The document discusses the development of an online instrument called DIM (Digital Information Skills Measurement) to measure students' information skills. DIM aims to combine multiple measurement methods into one online tool to provide a clear picture of students' information skills during an entire search process using the actual Internet. An initial study was conducted using DIM with 84 students, and results were compared to think-aloud protocols. DIM showed potential but also room for improvement, such as providing more context for student evaluations during searches. Further validation steps are outlined.