Dwi Widjanarko, - (2018) Increasing vocational school students’ competency of automotive brake system by implementing diagnostic problem-based e-jobsheet. Journal of Physics: Conference Series ICoVEMAT 2018. pp. 1-10. ISSN 1742-6588

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Abstract

This study aims to determine product feasibility, effectiveness, and student responses to e-job sheet based the diagnostic problem on brake system checking competence. The research method used is Research and Development (R & D). The results of the product feasibility test by the media expert were 90.6% and by the material experts 84%, both stated very feasible. The product effectiveness test used a one-group pretest-posttest design test, the result of the students’ competence increased from 42% to 84%. This shows that there was a significant difference in the average competence of students between before and after using the e-job sheet based diagnostic problem with a tcount of 14.77>ttable of 2.10. The result of the ngain test obtained medium improvement criterion with average 0.33. Analysis of students’ responses obtained 89.08% which is categorized very good.

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