The Nonequivalent Posttest-Only Design Differs from the One-Group Posttest-Only Design

Multiple Choice

The nonequivalent posttest-only design differs from the one-group posttest-only design and the one-group pretest-posttest design in that

A) it includes randomization procedures.
B) it has a comparison group.
C) it has high externalvalidity.
D) the results can be generalized to the population.