The two main types of designs used in all research on human behavior are __________ and __________.
A) observational; experimental
B) correlational; experimental
C) observational; correlational
D) variable; observational

Question

Quizplus · Accepted Answer

The two main types of designs used in research on human behavior are correlational and experimental. Correlational research examines the relationship between two or more variables, whereas experimental research manipulates an independent variable to determine its effect on a dependent variable. Observational research is a method used in both correlational and experimental designs, but it is not a type of design in itself. Therefore, option A and C are not correct, and option D is too vague.

The Two Main Types of Designs Used in All Research