Development and validation of Critical Thinking in Mathematics Test (CTMT) for 10th Grade Students

Critical thinking is one of the most desirable qualities for educational and professional success in this age. Thinking critically is helpful for students to excel in learning and life. This study focuses on the development and validation of critical thinking in mathematics test (CTMT) for 10th grade students. The study includes seven steps ranging from development to validation phase (content selection, table of Specification, development of the Items, validity, pilot Testing, item Analysis and final instrument). There were 68 items initially made using inductive and deductive approaches which comprise face validity, content validity, construct validity and criterion validity as were confirmed by the experts’, and statistical results of difficulty level of items and discrimination analysis. The reliability analysis also confirmed suitable consistency for the instrument. After going through the validity process, a total of 30 items remained as final items for this instrument. Full details of item analysis, reliability analysis and validation are discussed.