1. a test administered after instruction or an intervention to measure learning or progress
Usage: common in educational and research contexts

1. to administer a posttest to (a student or group)
Usage: less common than the noun form

Examples

• The teacher gave a posttest to measure how much students had learned from the unit.
• Students took the posttest two weeks after completing the training program.
• Researchers compared pretest and posttest scores to evaluate the effectiveness of the intervention.
• The posttest revealed significant improvement in reading comprehension.
• We will posttest the participants at the end of the study.
• Posttest results showed that 85% of students met the learning objectives.