Development and Validation of Workshop Based Process Skill Test in Metal Grinding for Assessing Students in Technical Colleges for work

Abstract

The study focused on the development and validation of Workshop-Based Process Skill Tests (WBPST) for assessing students in metal grinding trade in technical colleges.  The study adopted the instrumentation design and was carried out in Nasarawa State.  The population for the study was 25 NTC III students comprising of 3 ability groups (8 high, 12 average and 5 low abilities).  A 74 draft copy of workshop-based process skill items were generated, validated and utilized to develop WBPST. The developed test was used in assessing the students in governmental 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 of 0.76. It was found out that there were differences in the mean scores of 3 ability groups (high, average and low). The inter-rater reliability coefficient of the WBPST was 0.57. It was therefore recommended that examination bodies (NABTEB and WAEC) should integrate the workshop –based process skill test items in their examination process for certification of NTC students.

Keywords: Development, Validation,  Process assessment,  Students,  Metal grinding,  Technical college.