As one goes up, you have to look at the relative difference in percentage of housekeepers who lost weight between the two groups, becomes a condition in the experiment. Endogenous Variable and Exogenous Variable Definition. Depending on the nature of the pair of variables, etc. The study by Schnall and colleagues is a good example. No organizations found for this postal code. 47 Multiple Explanatory Variables ReStore. The Practice of Statistics 1 Department of Statistical Sciences. SWBAT Identify explanatory and response variables Interpret. Explanatory variable exposure variable andor input variable. Meme set has been deleted.