The company I work for gathers a lot of data daily, allowing me to use that knowledge in my mock study. Using statistical tests enables me to understand what all this data means. My study would be looking at different sets of data. According to Salkind and Frey's (2019) chart, the appropriate statistical test for my chosen variables is simple or multiple regression. Assessing whether or not my variables, age, sex, and vision difficulty, predict change in another variable