Author Question: Is it true that every experiment must have a control group that does not experience the independent ... (Read 13 times)

DyllonKazuo · **on:** Jun 20, 2018

Is it true that every experiment must have a control group that does not experience the independent variable?

a. Yes, a control group that does not experience the independent variable is necessary
b. Only if you want to have a reliable experiment
c. Only if you want to have a valid experiment
d. Control conditions do not always include a level in which the independent variable is absent.

Question 2

Control may be defined as

a. the ability to guide sources of variability in an experiment
b. providing standards for comparing the effect of a particular variable
c. providing techniques to reduce the effects of extraneous variables on the results
d. all of these