It is common for students and first-hand researchers to collect good data but report the incorrect findings because they select the inappropriate statistical tests frequently to analyze their data. This endeavor aims to help readers avoid making such mistakes when using statistical tests for associations. This book guides readers through the statistical test selection process step-by-step. This involves selecting the most appropriate statistical tests based on study design, the research questions/hypotheses you are trying to answer, and the characteristics of your data. It explains what these different study designs are and other basic statistical terms that you will need to know along the way (e.g., types of variables and types of measurement).