This study aims to analyze the effect of leadership style on employee performance, the effect of organizational communication on employee performance, as well as the simultaneous influence of both variables at CV Sumber Makmur Indonesia. The research employed a saturated sampling method with 60 employees as respondents, and the data were collected through observation and questionnaires. The results of the multiple linear regression analysis produced the equation Y = 4.972 + 0.440X1 + 0.457X2, indicating that both leadership style (0.440) and organizational communication (0.457) positively affect employee performance. The coefficient of determination (R-Square = 0.697 or 69.7%) shows that these two variables together explain 69.7% of the variation in employee performance, while the remaining percentage is influenced by other factors. The partial test (t-test) demonstrated that leadership style significantly affects employee performance, with t-count 10.158 > t-table 2.002 and a significance value of 0.000 < 0.05. Similarly, organizational communication has a significant effect, with t-count 10.036 > t-table 2.002 and significance value 0.000 < 0.05. Meanwhile, the simultaneous test (F-test) revealed that F-count 65.543 > F-table 3.16 with a significance value of 0.000 < 0.05, indicating that both leadership style and organizational communication simultaneously have a significant effect on employee performance at CV Sumber Makmur Indonesia.
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