The Effect of Interpersonal Communication on Employee Performance at the Secretariat of the Regional House of Representatives of Binjai City

Abstract

This study aimed to examine the effect of Interpersonal Communication on Job Performance at the Regional Revenue Agency of North Sumatra Province, Indonesia. In the context of public sector governance, employee performance plays a crucial role in supporting effective organizational communication and overall institutional effectiveness. Job performance, reflected in employees’ ability to accomplish tasks, maintain work quality, and fulfill responsibilities, is considered an important factor in enhancing interpersonal communication within the workplace. A quantitative approach was employed using survey data collected from 95 respondents through a structured questionnaire. The validity and reliability of the research instrument were tested using Pearson’s correlation and Cronbach’s Alpha to ensure that all questionnaire items were valid and reliable. Descriptive statistical analysis indicated that both job performance and interpersonal communication were perceived positively by respondents, as reflected in moderate to relatively high mean scores and relatively small standard deviations. Furthermore, simple linear regression analysis and a t-test were conducted to test the research hypothesis. The results demonstrated that Interpersonal Communication has a positive and statistically significant effect on Job Performance, with a significance value of 0.000 and a regression coefficient of 0.457. The coefficient of determination (R² = 0.199) showed that 19.9% of the variance in interpersonal communication could be explained by job performance, while the remaining 80.1% was influenced by other factors outside the research model. The correlation coefficient (R = 0.446) also indicated a moderate positive relationship between the two variables. These findings indicate that higher levels of job performance are associated with better interpersonal communication within the organization.