Psychology Degree Research Methods and Ethics 2

Question 1

A researcher finds a statistically significant result (p < .05) but a very small effect size (d = 0.05). What does this most likely indicate?

Accepted Answer

The finding is practically meaningless despite statistical significance

Answer

A tiny effect size means the difference is statistically detectable (due to large N) but has little real-world significance.

Question 2

Which research design is most appropriate for studying whether childhood trauma causes adult anxiety disorders?

Accepted Answer

Prospective longitudinal study

Answer

A prospective longitudinal study follows participants over time, allowing researchers to track trauma exposure and later anxiety outcomes.

Question 3

In a double-blind study, who is unaware of the treatment condition?

Accepted Answer

Both participants and the researchers interacting with them

Answer

Double-blind means neither the participants nor the researchers administering the treatment know who is in which condition.

Question 4

A psychology professor offers extra credit to students who participate in her study on exam stress. What ethical concern does this raise?

Accepted Answer

Undue inducement/coercion

Answer

Extra credit from an authority figure can compromise voluntary participation because students may feel pressured to join.

Question 5

What is the purpose of a manipulation check in an experimental study?

Accepted Answer

To confirm that the independent variable was successfully operationalized

Answer

A manipulation check is a separate measure confirming that the IV actually induced the intended psychological state or condition.

Psychology Degree Practice Test