Analysis of Work Motivation and Work Stress on Employee Performance at Starbucks Medan

Abstract

This research aimed to examine the influence of work motivation and work stress on employee performance at Starbucks Medan Branch. The population in this research comprised all employees working across 20 Starbucks outlets in Medan, totaling 118 individuals. The sample size was determined using Slovin’s formula, resulting in 91 respondents selected through a simple random sampling technique. This research was conducted in 2025. A quantitative approach was employed, and the collected data were processed using SPSS 24.0 with a multiple linear regression model. The findings revealed that both work motivation and work stress had a positive and significant impact on employee performance, both individually (partially) and collectively (simultaneously). Among the two variables, work motivation emerged as the most dominant factor influencing employee performance. Furthermore, the research indicated that work motivation and work stress collectively accounted for 82.2% of the variations in employee performance, while the remaining percentage was attributed to other factors not examined in this research. The relationship between employee performance, work motivation, and work stress was found to be exceptionally strong.