For which of the following would a researcher need to use a nonexperimental design?
A) to measure the impact of studying on academic performance
B) to assess the impact of beta-carotene on eyesight
C) to examine the effect of Tylenol on headache duration
D) to study the consequences of losing a loved one

Question

Quizplus · Accepted Answer

Nonexperimental designs are used when variables cannot be manipulated by the researcher, often due to ethical or practical reasons. Studying the consequences of losing a loved one involves variables that cannot be controlled or manipulated, making a nonexperimental design necessary.

For Which of the Following Would a Researcher Need to Use