Abstract
Assessment of competency including the knowledge, skills, and abilities of an employee is vital to provide good information for an employer to enhance employees’ future performances as well as maintaining organization performances. To measure the current level of employee competencies, tools such as an instrument for competency measurement that is valid and reliable should be used. To provide the validity and reliability evidence, instead of using the classical test theory (CTT), another measurement model that can be utilized to conduct a more precise measurement is the Rasch Measurement Model (RMM). This paper describes the application of the Rasch Measurement Model toward a study on competency measurement instrument development and validation. A discussion of several RMM diagnoses such as Person and Item Separation Index, Item Polarity, Fit Statistics, Item Dimensionality, Standardized Residual Correlation, and Differential Item Functioning (DIF) can be used to guide social science researchers in developing an instrument to measure employee competencies.
Highlights
Organizations have realized the importance of developing a unique personality which can enhance their competitive advantage to compete and survive in the changing market
The Importance of Instrument Development In social science research, it is not easy to understand a phenomenon especially when dealing with latent variables
classical test theory (CTT) has its own benefits in test efforts, it is considered as sample dependent for certain parameters such as item difficulty and item discrimination (Awopeju & Afolabi, 2016). This is due to CTT being unable to distinguish a test which focuses on analyzing a participant’s proficiency performance level due to the insufficient information related to how they respond on specific items within a single test tool (Hambleton et al, 1991)
Summary
In-Text Citation: (Arifin, 2021) To Cite this Article: Arifin, M. Vol 11, No 6, 2021, Pg. 159 - 172 http://hrmars.com/index.php/pages/detail/IJARBSS
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