Evaluasi Kualitas Instrumen Penilaian Perawatan Renggang Klep pada Pelatihan Servis Sepeda Motor Injeksi di UPT BLK Surabaya

Abstract

This study aims to analyze the quality of test items in the competency unit Performing Valve Clearance Maintenance at UPT Balai Latihan Kerja Surabaya. The study is motivated by the need for valid and reliable evaluation instruments to accurately measure competency achievement in vocational training. A quantitative descriptive method with an item analysis approach was employed. The subjects consisted of 36 trainees, and the instrument used was a 20-item multiple-choice test. The analysis covered difficulty level, discrimination index, distractor effectiveness, validity using the product-moment correlation, and reliability using Cronbach’s Alpha coefficient. The results show that 55% of the items fall into the moderate difficulty category, 25% easy, and 20% difficult. Based on the discrimination index, 40% of the items are categorized as good, 35% fair, and 25% poor. The distractor analysis indicates that 70% of the distractors function effectively, while the rest are ineffective. The validity test reveals that 75% of the items are valid, whereas 25% are invalid. The reliability coefficient of the test is 0.82, which is considered high. It can be concluded that most of the test items meet the criteria of a good evaluation instrument; however, revisions are needed for items with low discrimination power, ineffective distractors, and invalid status. This study is expected to serve as a reference for item bank development and improving the quality of evaluation in competency-based training.