The most important difference between weak and strong research designs is that strong designs
A) include both a pre-test and a post-test.
B) have greater internal validity.
C) have greater external validity.
D) include more than one independent variable.

Question

Quizplus · Accepted Answer

Strong research designs have greater internal validity, meaning they are better at establishing a cause-and-effect relationship between variables, minimizing the influence of extraneous variables.

The Most Important Difference Between Weak and Strong Research Designs