Final answer:
Moderating variables affect the relationship between an independent and dependent variable in social research.
Step-by-step explanation:
In social research, factors that affect the relationship between an independent and dependent variable are called moderating variables. These variables can alter the strength or direction of the relationship between the two variables. For example, let's say we are studying the relationship between exercise and weight loss. Age could be a moderating variable, as it may influence how much weight loss is achieved through exercise.