Abstract
The study focused on the development and validation of Workshop-Based
Process Skills Tests (WBPST) for students in metal grinding trade in
technical colleges. It adopted instrumentation design and was carried out
in Nasarawa State. The population of the study was 25 National Technical
Certificate (NTC) III students. Eighty-nine workshop-based process skill
items were generated, validated and utilized to develop workshop-based
process skill tests. The test was used in assessing the students in
Government Technical College, Assakio. The data collected were analyzed
using Cronbach Alpha, Kendall coefficient of concordance and Scheffe test.
The reliability of the WBPST revealed coefficient of 0.76. It was found out
that there were significant differences in the mean scores of three ability
groups (high, average and low) of the students at 0.05 level of significance.
The inter-rater reliability coefficient of the WBPST was 0.57. It was
recommended that examination bodies, National Business and Technical
Examination Board (NABTEB) and West African Examination Council
(WAEC) should integrate the workshop –based process skill test items in
their examination process for certification of NTC students.