______ is a threat that refers to circumstances where the control group is aware of not receiving the intervention which is perceived to be of value.
A) Resentful demoralization
B) The John Henry effect
C) Bitter corruption
D) The Henry Jordan effect

Question

Quizplus · Accepted Answer

Resentful demoralization is a threat to internal validity that occurs when the control group becomes demoralized or resentful because they knew they did not receive the intervention that they believed would be valuable. This can lead to a decreased motivation to participate in the study and negatively impact the study's results. The John Henry effect refers to a situation where individuals in the control group improve their performance because they know they are in a control group, while the Henry Jordan effect is not a recognized threat to internal validity.

______ Is a Threat That Refers to Circumstances Where the Control