Development and validation of instrument for assessing practical skills in fault diagnoses and repairs of radio and television systems in Nigerian technical colleges

As the world experiences changes in all facets of life, it is equally expected that the school curriculum should not remain static but change in the same direction. The electronic technology workshop practice in technical colleges in Nigeria has overtime been dominated with the teaching of practical skills in radio and television that are gradually phasing away in the electronic world, hence the need to upgrade it by integrating the practical contents of modern digital electronics, of which DVD home theatre sound system is one of the electronic gadgets. This study therefore determined the corrective maintenance skills requirements in DVD home theatre sound system necessary for improving the workshop practice of electronic technology via curriculum innovation in technical colleges. Three research questions were raised and answered using mean statistic, while one hypothesis was formulated and tested using t-test statistic. The descriptive survey research design was employed in the study. A five point scaled questionnaire was the instrument used for data collection. The sample size was 164, comprising electronic technology teachers in universities and technical colleges and DVD home theatre sound system technicians in Edo State. The instrument was validated by experts and its reliability coefficient obtained using Cronbach’s alpha formula was 0.876. It was found that the corrective maintenance skills requirements in DVD home theatre sound system necessary for integration into technical college curriculum for electronic technology workshop practice are skills in the use of tools and equipment to perform such maintenance, fault diagnosis skills in order to carry out the maintenance and the actual repairs (corrective maintenance) skills. It was therefore recommended that electronic technology teachers should be trained in the teaching of practical skills in maintenance of DVD home theatre sound system for capacity building. Key words: DVD home theatre sound system, corrective maintenance, curriculum, electronic technology, technical college.

Download Full-text

Development and Validation of an Instrument for Assessing Students’ Practical Skills in Joinery at Science and Technical College Level in Nigeria

World Journal of Educational Research ◽

10.22158/wjer.v7n4p9 ◽

2020 ◽

Vol 7 (4) ◽

pp. p9

Author(s):

PROF. Titus I. EZE ◽

GOWON K. Eric ◽

OLUMOKO B. Oluyinka

Keyword(s):

Null Hypothesis ◽

Technical College ◽

Assessment Instrument ◽

Skill Assessment ◽

Practical Skills ◽

College Level ◽

Alpha Coefficient ◽

Quality Product ◽

Research Questions ◽

Development And Validation

The fact that a student can present a quality product does not constitute a positive proof that process practical skills are obtained. This study was therefore designed to develop and validate an instrument for assessing students’ practical skills in joinery at technical college level. Four research questions were set to guide the study and a null hypothesis. The study adopted the instrumentation design and was carried out in Adamawa State. The population for the study was sixty four (64) respondents. The instrument was subjected to validation, reliability test and results obtained from task-by-task reliability coefficient range from 0.67 to 0.98 through Cronbach Alpha coefficient. The instrument was imperiled to factor is alanalys is where a practical skill item was discarded. Based on the findings; nine (9) tasks with corresponding eighty three (83) practical skills were developed. The study recommended that (i) efforts should adopted to enforce the use of Joinery Skill Assessment Instrument (JSAI) for assessing students’ practical skills in Nigerian technical colleges. (ii) Teachers should be encouraged to study and acquaint themselves with the use of JSAI. (iii) Stakeholders (ministries and institutions) should endeavor develop platforms (conferences, workshops) where the use of this new assessment instrument can be encouraged.

Download Full-text