Dewi, N. R.; Savitri, E. N.; Listiaji, P.; Saputri, L. H.; Dwijayanti, I. DIAGNOSTIC TEST-BASED ASSESSMENT TOOL USING MOODLE TO MEASURE STUDENTS’ METACOGNITIVE ABILITIES: Received: 10th January 2023; Revised: 3rd April 2023, 9th May 2023; Accepted: 11th May 2023. pijtel 2023, 7, 65-76.