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All Journal JOURNAL OF APPLIED BUSINESS ADMINISTRATION Dinasti International Journal of Education Management and Social Science
Sri Rezeki
Universitas Negeri Medan, Medan, Indonesia
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Social Sciences

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Service quality and consumer trust as determinants of customer satisfaction: Evidence from an automotive showroom in Medan Rima Sapira; Sri Rezeki; Desma Erica Maryati Manik; Isra Rafika Sihombing; Dian Setyorini
Journal of Applied Business Administration Vol 10 No 1 (2026): Journal of Applied Business Administration
Publisher : Pusat P2M Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jaba.12813

Abstract

Consumer satisfaction in the automotive retail sector is shaped by both operational and relational service factors, yet empirical evidence integrating these mechanisms in the Indonesian two-wheeler showroom context remains scarce. Against a backdrop of year-to-year sales variation at Yamaha Motor Showroom Branch Klambir V in the Medan–Deli Serdang corridor, this study examines the effects of service quality and consumer trust on customer satisfaction. A quantitative cross-sectional survey design was employed with 150 respondents selected through purposive sampling. Data were collected using a structured questionnaire measured on a five-point Likert scale. Instrument validity was assessed via Corrected Item-Total Correlation and reliability via Cronbach’s Alpha; classical assumption tests (normality, multicollinearity, and heteroskedasticity) preceded multiple linear regression. All instruments were valid and reliable (α > 0.80). Regression results indicated that service quality (β = 0.497, t = 8.121, p < 0.001) and consumer trust (β = 0.473, t = 7.734, p < 0.001) each exerted a positive and significant effect on customer satisfaction, and jointly explained 44.3% of its variance (F = 60.186, p < 0.001, Adjusted R² = 0.443). Theoretically, the study extends the SERVQUAL and commitment–trust frameworks by demonstrating that an operational construct (service quality) and a relational construct (trust) function as comparably strong, complementary determinants of satisfaction within a single bounded automotive-retail setting—a context in which the two have rarely been tested jointly. Practically, management is advised to invest in service training, strengthen the service environment, and improve communication transparency to sustain consumer trust and satisfaction.
The Effect of Digital Marketing and Brand Image on Customer Trust and Its Implication for Customer Loyalty in the E-Commerce Industry Sri Rezeki; Petrus Loo; Desma Erica Maryati Manik; Elisabeth Nainggolan; Herni Suryani
Dinasti International Journal of Education Management and Social Science Vol. 7 No. 6 (2026): Dinasti International Journal of Education Management and Social Science (Augus
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijemss.v7i6.6300

Abstract

The rapid growth of e-commerce has intensified competition among digital businesses, making customer trust and loyalty critical determinants of long-term sustainability. In this context, digital marketing activities and brand image play an increasingly important role in shaping customers’ perceptions and behavioral intentions. This study aims to examine the effect of digital marketing and brand image on customer trust and its implications for customer loyalty in the e-commerce industry. This research employs a quantitative approach using a survey method. Data were collected from e-commerce customers who have prior experience in online transactions. The data were analyzed using Structural Equation Modeling (SEM) to test the proposed relationships and the mediating role of customer trust. Digital marketing is measured through indicators such as online content quality, interactivity, and personalization, while brand image reflects customers’ overall perceptions and associations with the brand. The results indicate that digital marketing has a positive and significant effect on customer trust. Brand image is also found to significantly influence customer trust. Furthermore, customer trust has a positive and significant effect on customer loyalty. The findings further reveal that customer trust mediates the relationship between digital marketing and customer loyalty, as well as between brand image and customer loyalty. These results suggest that customer trust serves as a key mechanism through which digital marketing efforts and brand image translate into loyal customer behavior. This study contributes to the marketing literature by providing empirical evidence on the role of customer trust in the e-commerce context. From a managerial perspective, the findings imply that e-commerce firms should focus on developing effective digital marketing strategies and maintaining a strong brand image to foster customer trust and enhance customer loyalty in a highly competitive digital marketplace.
Co-Authors Desma Erica Maryati Manik Dian Setyorini Elisabeth Nainggolan Herni Suryani Isra Rafika Sihombing Petrus Loo Rima Sapira