Which one of the following statements is true concerning the nonequivalent control group design?
a. It has an experimental and control group but lacks random assignment of subjects to groups.
b. It uses two nonequivalent control groups with random assignment of subjects to groups.
c. It is used to make comparisons between two non equivalent groups that are randomly assigned to experimental and control conditions.
d. It uses two groups that are initially the same but are found to be nonequivalent at the end of the study.
Question 2The results of a quasi experimental design involving non-equivalent control groups with pretests and posttests
a. Cannot be believed because of confounding
b. Cannot always be interpreted
c. Lack power
d. Lack external validity
Question 3Whether quasi experiments with pretest and posttest designs can be interpreted depends on
a. Whether the pattern of result can be accounted for by other differences between the groups.
b. Whether pretest and posttest performance differ for the groups
c. The number of participants in the study
d. The number of participants in the control group
Question 4A criminal psychologist is interested in studying the effect of a new furlough program on inmate morale. There are two prisons involved in the study. One prison will institute the furlough program and the other prison will not. The psychologist arranges with the superintendent of both prisons to measure inmate morale before the furlough program begins and six months after the program has started. What type of quasi experimental design is illustrated in this example?
a. nonequivalent control group
b. regression discontinuity
c. interrupted time series
d. repeated treatment
Question 5The most common quasi experimental design is the ______ design.
a. interrupted time series
b. repeated treatment
c. regression discontinuity
d. nonequivalent control group
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