Development and Evaluation of Instructional Video for Teaching Technical Drawing in Nigerian Universities.

Abstract

This study developed and evaluated instructional video for teaching Technical Drawing to Technical education students in Nigerian Universities and also tried out to know if this teaching strategy affects students’ performance. Four research questions and one hypothesis were used for the study. The study adopted Research and Development (R&D) design for production of the video and One-group Pretest-Posttest Design to test the students’ performance. The population of this study comprised of 154 final year students and 58 lecturers in Technical Education Department from five public Universities in South-South geopolitical zone in Nigeria from which 100 students and 10 Technical Drawing lecturers were selected for the study through purposive sampling technique. To collect data for the study, the researchers developed instructional video and was faced and content validated by five experts using 40-item structured questionnaire. The student's performance was measured through 20-item pretest and posttest multiple-choice type of test. Cronbach alpha statistics was used to determine the reliability coefficient of the instrument which gave a value of .86. A five-point rating scale was provided for the respondents to make their responses on the research questions. The research questions were analyzed using Mean and standard deviation while t-test was used to test the hypothesis at .05 level of significance. The findings of the study revealed that the contents, specific objectives, instructional methods, materials, learners’ task and evaluation techniques of the developed instructional video are appropriate for teaching Technical Drawing to Technical education students in Nigerian universities. The study further revealed a significance difference between the students taught with the video and students taught without the video. Therefore, the null hypothesis was rejected. The researchers recommend among others that the video can be a supplementary material fo