Question

current attempt in progress
researchers manipulate a variable and examine the effect of that manipulation on another variable in a(n)
o experimental study.
o correlational study.
o biological study.
o descriptive study.

Explanation:

In an experimental study, researchers manipulate an independent variable to observe its effect on a dependent variable. Correlational studies look at relationships between variables without manipulation. Biological studies focus on biological aspects. Descriptive studies describe phenomena. The key here is the manipulation of a variable, which is characteristic of an experimental study.

Answer:

experimental study.