Question

question 23
1 pts
experimental designs involve ______.
d) all of the above
b) random assignment to conditions
c) the comparison of the experimental group to a control group
a) manipulation of the independent variable

Explanation:

In experimental design, manipulation of the independent variable (A) is done to see its effect. Random assignment to conditions (B) helps reduce confounding variables. Comparing the experimental group to a control group (C) is a key part to assess the effect of the independent variable. Since A, B, and C are all core aspects of experimental designs, "All of the above" is correct.

Answer:

D) All of the above