The Validity and Reliability of Developing Assessment Instruments for Students in Electrical Installation and Maintenance Work: Concentration on Psychomotor Skills Assessment

Abstract

Electrical installation and maintenance work is one of the trades in the curriculum of technical colleges. For the proper installation of electrical appliances, pupils are expected to develop psychomotor skills. Only the cognitive component of electrical installation work is evaluated by the NAtional Business and Technical Examination Board (NABTEB). According to the study, even though students graduate with good GPAs, they lack psychomotor abilities. Therefore, using flawed and unreliable instruments results in inaccurate assessments of pupils' improvement of psychomotor skills. Therefore, the study established the practical tasks in electrical installation and maintenance work to be completed by the students, validated the developed process assessment instrument in electrical installation and maintenance work, and also proved the reliability of the progressed process evaluation instrument in electrical installation and maintenance work. The developed instrument has provided a readily available process assessment instrument of high quality for the study. The following actions were advised for adoption by the study:1. For the purpose of certifying students, the external examination boards (NABTEB, NECO, and WAEC) should incorporate electrical installation and maintenance work skill assessment instrument items into their examinations.2. To train teachers of electrical installation and maintenance work how to apply the established electrical installation and maintenance work skill assessment instrument, the government should host seminars and workshops. 3. Technical education evaluators should examine their curricula, organize the material into pertinent activities, and create exams like to them in their particular subject areas using electrical installation and maintenance work skill evaluation instruments. 4. To evaluate students in electrical installation and maintenance work that is related to construction, teachers of electrical installation and maintenance work should be encouraged to use the created electrical installation and maintenance work skill evaluation instrument.