Measurement Validation and Reliability Assessment of Customer Satisfaction and Customer Loyalty Constructs in the Malaysian Banking Industry

HRMARS - The Malaysian banking industry has undergone substantial transformation driven by rapid technological advancement, digital banking innovation, increased competition, and changing consumer expectations. The emergence of digital financial services, mobile banking applications, fintech competition, and customer-centric banking strategies has significantly reshaped the banking ecosystem. In this increasingly competitive environment, customer satisfaction and loyalty have become strategic priorities for banks seeking to sustain profitability and maintain a competitive advantage. Consequently, the development of valid and reliable measurement instruments is essential to ensure the accuracy and credibility of empirical findings in banking-related studies. This study aims to evaluate the validity and reliability of constructs related to customer satisfaction and customer loyalty in the Malaysian banking industry. The measurement instrument was developed based on established theoretical frameworks, including SERVQUAL and the Unified Theory of Acceptance and Use of Technology (UTAUT). Additional variables, such as consumer expectations, post-use perceptions, and perceived usefulness, were also incorporated to enhance the measurement model's comprehensiveness. A quantitative methodological approach involving content validity assessment, pilot testing, reliability analysis, and convergent validity evaluation was adopted. Content validity was assessed using the Item-Level Content Validity Index (I-CVI) and the Scale-Level Content Validity Index (S-CVI) through expert evaluations conducted by academic and industry experts. Reliability analysis was conducted using Cronbach’s Alpha, Corrected Item-Total Correlation, Inter-Item Correlation, Composite Reliability, and Average Variance Extracted (AVE). A pilot study involving 102 respondents was conducted to evaluate the instrument's psychometric properties. The Kaiser-Meyer-Olkin (KMO) value of 0.843 and significant Bartlett’s Test of Sphericity confirmed the suitability of the data for exploratory factor analysis. The findings revealed that all constructs exceeded the recommended thresholds for reliability and convergent validity, indicating strong internal consistency and construct adequacy. Cronbach’s Alpha values ranged from 0.887 to 0.972, while Composite Reliability values exceeded the recommended threshold of 0.70 across all constructs. The findings provide strong evidence that the instrument demonstrates excellent psychometric properties suitable for future empirical studies in the Malaysian banking industry. This study contributes methodologically by offering a validated instrument for research on customer satisfaction and loyalty in both conventional and digital banking environments.