Which of the following is not a type of quasi-experimental design?
a. non-equivalent control group posttest only design
b. correlated-groups design
c. multiple-group time-series design
d. non-equivalent control group pretest-posttest design
In _____ designs, many measures are taken so that the effect of the treatment can be seen over time.
a. pretest-posttest
b. single-group
c. non-equivalent control group
d. time-series
Which of the following is true concerning the non-equivalent control group pretest-posttest design?
a. Comparisons can be made between groups on the pretest and the posttest.
b. Comparisons can be made within groups from the pretest to the posttest.
c. Because subjects are not randomly assigned to groups, we cannot say that they are equivalent.
d. All of the other alternatives are true.
An uncontrolled extraneous variable is _____.
a. a confound
b. internally valid
c. externally valid
d. a subject variable
_____ is the extent to which the results of an experiment can be attributed to the manipulation of the independent variable rather than to some extraneous variable.
a. Confounding
b. Internal validity
c. Regression to the mean
d. External validity
A design in which a series of measures are taken on two or more groups both before and after treatment is a _____ design.
a. experimental
b. multiple-group time-series
c. nonequivalent control group posttest only
d. nonequivalent control group pretest/posttest
A design in which at least two nonequivalent groups are measured after the treatment is a _____ design.
a. experimental
b. correlational
c. nonequivalent control group posttest only
d. nonequivalent control group pretest/posttest
A design in which at least two nonequivalent groups are measured both before and after treatment is a _____ design.
a. experimental
b. correlational
c. nonequivalent control group posttest only
d. nonequivalent control group pretest/posttest
A design in which a single group of subjects is measured repeatedly before and after a treatment is a _____ design.
a. experimental
b. correlational
c. single-group time-series
d. posttest only design
A design in which a single group of subjects is tested both before and after treatment is a _____ design.
a. correlational
b. single-group posttest only
c. single-group pretest/posttest
d. experimental
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