Content validity of a measurement instrument to measure success in TPM implementation
Abstract
Content validation is a critical and intricate stage in the process of developing measurement instruments often used to assess complex constructs in social and administrative research. Measurement instruments must exhibit content validity to ensure that the measurable items or variables for each construct are representative of those constructs. This study aims to report and discuss the practical content validation of a measurement instrument that assesses success in the implementation of Total Productive Maintenance (TPM) considering five constructs: Management Participation and Commitment (MPC), Education and Training (ET), Employee Involvement (EI), Organizational Cultural Change (OCC), and TPM implementation success (TPMS). For the validation procedure, expert judgment method and Lynn's Content Validity Index (I-CVI) were utilized, involving a literature review, item collection, and formulation for the constructs. These were validated by expert judgment, where they assessed item dimensions: relevance, coherence, and clarity. Expert responses were analyzed using Lynn's Content Validity Index (I-CVI, S-CVI/ave, S-CVI/UA) method for each item within the dimensions. Results show that the items are representative of their corresponding construct, thus establishing the instrument's high-level content validity with a significance level of 5%. The outcome is a content valid instrument to measure TPM implementation success through the proposed four constructs.
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