Experimental designs involve both random assignment to condition and _____________.

Question

Quizplus · Accepted Answer

Experimental designs involve manipulating the independent variable to see how it affects the dependent variable, and randomly assigning participants to conditions ensures that any observed differences between groups are due to the manipulation and not preexisting differences. Therefore, A is the correct answer as it highlights the importance of manipulation in experimental designs. B and C are not correct as they do not capture the essential feature of experimental designs, which is the manipulation of the independent variable. D is also not correct as experimental designs do not necessarily involve higher costs compared to quasi-experimental designs.

Experimental Designs Involve Both Random Assignment to Condition and _____________