4. To test a hypothesis about a given variable, experimental and control groups

ID: 21340 • Letter: 4

Question

4. To test a hypothesis about a given variable, experimental and control groups are tested in parallel. Which of the following best explains the dual experiments?
A) In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made.
B) In the control group, a chosen variable is altered in a known way. In the experimental
group, that chosen variable is not altered so a comparison can be made.
C) In the experimental group, a chosen variable plus all other variables are altered. In the
control group, the chosen variable is altered; however, all other variables are held
constant.
D) In the experimental and control groups, two different variables are altered.

5. The

Explanation / Answer

A) In the experimental group, a chosen variable is altered in a known way. In the control group, that chosen variable is not altered so a comparison can be made.

Navigate

4. To standardize a data set, x, we often use a z transfortnation, W where rple

4. To test whether two categorical variables are independent, a t test should be

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.

4. To test a hypothesis about a given variable, experimental and control groups

Question

Explanation / Answer

Related Questions

Navigate