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Journal of Education and Development in the Caribbean

Instructional Technology in the Technical College Classroom

Publication Date: 
May 2017

This study sought to determine the effectiveness of three teaching methods—lecture, demonstration, and blended teaching— on students’ psychomotor performance in brick/block-laying and concreting in Delta State technical colleges. Three hypotheses were formulated and tested. The population of the study was 215 vocational year one students of brick/block-laying and concreting in the six government technical colleges in Delta State. No sampling was done in the study, thus all the 215 brick/block-laying and concreting students in vocational year one were used as sample of the study. A quasi-experimental research design was used which involved pre-test, post-test, and non-equivalent groups. The instrument for data collection was Brick/Block-laying and Concreting Competency Assessment Instrument (BCCAI). The test-re-test method was used to ascertain the reliability of the BCCAI, using data collected from 20  brick/block-laying and concreting vocational year one students from technical colleges in Edo State. Pearson’s product moment correlation was used to analyze the data and a reliability coefficient of 0.96 was obtained. The experiment lasted for 16 weeks. Data collected were analyzed using analysis of covariance (ANCOVA) for testing the hypotheses at 0.05 level of significance. Findings of the study revealed that students in experimental groups 1, 2 and 3 who were taught brick/block-laying and concreting by lecture, demonstration, and blended teaching methods improved in their post-test psychomotor performance when compared with their pre-test. Therefore, it was concluded that lecture, demonstration, and blended teaching methods have significant effects on students’ psychomotor performance in brick/block-laying and concreting. However, the blended teaching method was found to be the most effective teaching method when compared to lecture and demonstration teaching. Hence it was recommended, among others, that government should adequately provide the required training materials and human resources for effective teaching of brick/block-laying and concreting trades, in particular, and other technical trades in Delta State technical colleges, Nigeria.

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