Materials
EXTERNAL GENITALIA
Educational materials included lecture videos on liver anatomy and male genitalia anatomy. The liver anatomy videos covered liver topography, gallbladder, and biliary system. The male genitalia anatomy videos covered male internal and external genitalia.Four videos (two for each topic) using the same written transcripts in each pair but different visual materials (images from Netter Anatomy Atlas [To assess the retention performance of the students, a written test with answer keys was developed for each topic based on the video content by the research team which comprised of medical students, medical doctors, specialists, and medical educationists who are experienced in assessment. The tests were piloted by medical students who had not participated in the test development process. After revisions based on feedback, the liver anatomy test had 10 questions worth a total of 20 points, while the male genitalia anatomy test had 19 questions worth a total of 40 points. Both tests contained open-ended and multiple-choice questions, and did not include any visual material.