Which type of research would allow you to determine whether students' grades accurately predict later income?

A) case study
B) naturalistic observation
C) experimentation
D) correlation

Later Income

Future earnings or revenue streams anticipated or planned for in subsequent periods of time.

Grades

Marks awarded for academic performance, typically in the form of letters or numbers, used to evaluate students' understanding and mastery of course material.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate together.