Multiple Choice
A two-group posttest-only design is ________________.
A) type of experimental design that considers the impact of several independent variables simultaneously
B) an experimental design that has all the parts of the classical design except a pretest.
C) an experimental design that has random assignment, a control group, and a pretest and posttest for each group
D) an experimental design used to examine whether the order of sequence in which subjects receive multiple versions of the treatment has an effect
Correct Answer:

Verified
Correct Answer:
Verified
Q20: A threat to internal validity that occurs
Q21: An experimental design that has random assignment,
Q22: Preexperimental designs is/are _.<br>A) an effect of
Q23: An experimental design used to examine whether
Q24: Experimental research is fairly common now in
Q26: This is an experimental design used to
Q27: The control group is the group that
Q28: A threat to internal validity that occurs
Q29: A type of reactivity and threat to
Q30: The act of randomly assigning research subjects