Effectiveness of the Developed Sand Casting Instructional Video Package on Students’ Achievements in Technical Colleges in Bauchi and Gombe States, Nigeria

Haruna A. I., E. F. Mele, Aminu Tijjani Umar

Abstract


The study was on testing the effectiveness of the developed sand casting instructional video package on students’ achievement in technical colleges in Bauchi and Gombe states. Three research questions were raised and three null hypotheses were formulated and tested at 0.05 level of significance. Related literature was reviewed. Quasi-experimental pretest-posttest non-equivalent group design was used for the study. Sixty-seven (67) NTC II Mechanical Engineering crafts practice trades students in two intact classes from two co-educational colleges were used from the two States. One group of the intact class was taught using developed sand casting instructional video package and the other group taught using the conventional method. Sand Casting Achievement Test (SCAT) with a reliability coefficient of 0.89 used to measure students’ achievement before and after treatment and there manifested enough evidence in the study to prove that the developed instructional video package and SCAT are of high validity and reliability. Data obtained were analyzed using Mean and Standard Deviation was used to answer the research questions and t-test to test the hypothesis. Findings revealed that: the experimental group performed relatively the same with the control group before the treatment; students taught sand casting using developed instructional video package (Experimental Group) achieved better than those taught using the conventional method (control group); the post-test mean scores of the experimental group taught using the developed instructional video package was higher than their pre-test scores; the effect of developed instructional video package was significant on students’ achievement in the experimental group taught with a developed instructional video package. Based on the findings of this study, it was concluded that developed instructional video package was very effective in enhancing students’ achievement.


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