Author Question: The best alternative to using groups that have been randomly assigned to conditions is to use A) ... (Read 18 times)

craiczarry · **on:** Aug 4, 2018

The best alternative to using groups that have been randomly assigned to conditions is to use

A) groups that have been assigned in a biased manner.
B) a no control-group design.
C) a nonequivalent control-group design in which the groups appear similar on relevant variables.
D) a nonequivalent control-group design in which the groups appear different on relevant variables.

Question 2

One of the most serious problems with nonequivalent control-group designs is that

A) groups may be different at the outset on the dependent measures.
B) groups may be different at the outset on the key independent variables.
C) difference scores are cumbersome to use in statistical analyses.
D) participant recruitment is much more difficult than it is in other types of designs.