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Abstract

This study aims to develop and analyze the Competency Test instrument for Application of Electronic Circuits for students of class X and XI of SMK Audio Video Engineering Expertise Program by modeling Item Response Theory. In developing and analyzing the instrument using the validity of Messick (1996) with an approach consisting of three aspects including content, substantive and structural. This Expertise Competency Test instrument includes materials for reading electronic diagrams/schematics, using unit units, reading and identifying electronic components (passive), reading and identifying electronic components (active), designing and manufacturing single/double layer PCBs (printed circuit boards) manually. manuals using the iron transfer artwork method, using test and measuring equipment, using basic electrical and electronic components, tracking damage to electronic products and developing engineering solutions for analog electronics problems presented in the form of multiple choice questions. Each question refers to each element of competence in each unit of competence. The research design uses the ADDIE procedural model (Analysis, Design, Development, Implementation, Evaluation). The research subjects were planned to consist of 283 students of class X and XI of the Audio Video Engineering Skills Program at SMK Negeri 1 Adiwerna, Tegal Regency. Constructive validity with item response theory modeling is expected to give the following results: (1 The level of suitability of the items is in the range of -3 to 4; (2) The discriminative power of items is between 0 and 2, (3) False guesses are between 0 and 1, (4 ) All items are suitable for modeling; (3) There are no items containing DIF, so it can be said that the instrument is suitable for measuring the ability of the Electronic Circuit Application Expertise Competency for students of class X and XI of SMK Audio Video Engineering Expertise Program.

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