This report presents a comprehensive data analysis focusing on reliability and correlation coefficients within a dataset examining transformational and transactional leadership styles, employee performance, and employee satisfaction. Reliability is assessed using Cronbach's alpha for transformational, transactional, employee performance, and employee satisfaction data. Correlation coefficients are calculated to determine the relationships between transformational and transactional leadership with employee performance and satisfaction. The analysis identifies variables that may be omitted to improve data reliability and highlights significant correlations between leadership styles and employee outcomes. The report concludes with an overall assessment of the dataset's reliability and implications for further analysis.