This academic book by A. Azzam Abdul Rahman Sabri provides a thorough exploration of parametric statistical tests, essential tools for quantitative research. Published in 2018, it serves as a crucial guide for students and researchers in various fields. The text systematically covers fundamental concepts, assumptions, and applications of tests like t-tests, ANOVA, and correlation. It aims to equip readers with the practical skills needed to correctly select statistical methods, execute tests, and accurately interpret the results for sound scientific conclusions, making it an invaluable resource for data analysis and hypothesis testing.