Correlation:A statistical measure that indicates the extent to which two variables are related. For example, it can be used to determine if there is a relationship between intrinsic motivation and standardized test scores.
Intrinsic Motivation:Refers to engaging in an activity for its own sake or personal enjoyment rather than for external rewards or pressures.
Experimental Design:A research design that involves manipulating an independent variable (in this case, intrinsic motivation) and measuring its effect on a dependent variable (standardized test scores).