1 .		What distinguishes a non-equivalent control group design from a before-after experimental design?
2 .		Assume a researcher designates one class of children to be the experimental group and another class the control group. Both groups are given a pre- and posttest and the experimental group is given the treatment condition between pre- and posttesting. The researcher would be using a
3 .		An experimenter has selected two groups for quasi-experimental design. The control group had a beer at Al’s Pub & Pizza between pre and posttesting and perform quite poorly at posttest. This is an example of
4 .		A researcher finds that his experimental group, who scored significantly lower than the control group at pretest, now scores significantly higher following the experimental treatment. This has most likely resulted from
5 .		An experimental design in which the researcher examines the patterns of pre and post responses is called a
6 .		The effect of the treatment condition in the time series design is noted by
7 .		The nonequivalent control group design is an example of a _______ design.
8 .		A situation in which both the control and experimental groups show an increment in the dependent variable from pre to posttesting as a possible result of a selection-maturation bias is
9 .		The _________ renders many rival hypothesis implausible.
10 .		Quasi experimental designs should be used when
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