Question
What is a research procedure in which a variable is manipulated and the effect of that manipulation on another variable is observed? a correlational study a case study an experiment a validity check
Solution
4.4
(266 Votes)
Aaron
Advanced ยท Tutor for 1 years
Answer
The answer is **c. an experiment**.Here's why:An **experiment** is specifically designed to investigate cause-and-effect relationships. Researchers manipulate an **independent variable** (the one being changed) and then observe the impact of that manipulation on a **dependent variable** (the one being measured). This controlled manipulation is what distinguishes experiments from other research methods.Let's look at why the other options are incorrect:* **a. correlational study:** Correlational studies examine the relationship between two or more variables, but they do *not* involve manipulating any variables. Therefore, they cannot establish cause-and-effect. They only show if variables tend to change together, not *why* they change together.* **b. case study:** A case study involves in-depth investigation of a single individual, group, or event. While valuable for generating hypotheses, case studies cannot establish cause-and-effect due to the lack of controlled manipulation.* **d. a validity check:** Validity checks are procedures used to assess the accuracy and trustworthiness of research findings. They are a *part* of the research process, not a research method itself.