CRA Research Design & Methodology 3

Question 1

Which threat to internal validity occurs when participants in a control group seek alternative treatments because they know they are not receiving the intervention?

Accepted Answer

Compensatory rivalry

Answer

Compensatory rivalry (John Henry effect) happens when control group members try harder to compensate for not receiving the treatment.

Question 2

A Likert scale asking respondents to rate agreement from 'Strongly Disagree' to 'Strongly Agree' produces which level of measurement?

Accepted Answer

Ordinal

Answer

Likert scales produce ordinal data because the categories are ranked but the distances between points are not necessarily equal.

Question 3

In hypothesis testing, a Type I error means:

Accepted Answer

Rejecting a true null hypothesis

Answer

A Type I error (false positive) occurs when the null hypothesis is incorrectly rejected despite being true.

Question 4

Which qualitative method involves the researcher immersing themselves in a community to observe behavior in its natural context?

Accepted Answer

Ethnography

Answer

Ethnography requires prolonged immersion in the social setting to understand behavior from the participants' perspective.

Question 5

The term 'blind' in a double-blind experiment refers to which parties being unaware of treatment assignment?

Accepted Answer

Both the participants and the researchers

Answer

In a double-blind design, both participants and the researchers interacting with them are unaware of who received which treatment, reducing bias.

(CRA) Certified Research Associate Practice Test

(CRA) Certified Research Associate Practice Test

CRA Research Design & Methodology 3