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15 Cards in this Set
- Front
- Back
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Which one of the following is false regarding experimentation. Or are they all true?
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a. The expermintal model is closely related to the traditional image of science.
b. Experimentation is especially apropriate for hypothesis testing. c. It is better suited for explanatory than descriptive research. d. It is especilly notable for high reseracher control. ALL ARE TRUE. |
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Which one of the following is notr an aspect of the classical experimental design?
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High internal validity and high external validity.
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Professor Stauffer performed an experiment on learning by varying the mode of instrution. She did this for three different grade levels. Which of the following is the experimental stimulus?
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Mode of instruction.
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The importance of having a pretest to compare with posttest results lies in:
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comparing pretest results with posttest results acrsos gropus in teh experiment.
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An experimener wanted to see the effects of caffeine intake on the arousal state of her subjects. She randomly assigned subjected to the experimetnal and control groups and adminitered caffeine-rich soda to one group of subjects and caffeine-free soda to ther other group; she then compared the arousal states of the members of both groups. This is an example of a:
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Posttest-only control group.
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In the experiment above, caffeine-rich soda and caffeine-free soda, respectively are the:
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experimental stimulus and placebo.
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Professor Riley performed an experiment in which neither the subjects nor the experimenter knew who got the stimulus. This is an example of which type of experiment?
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Double-blind experiment.
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Matching refers to:
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selecting similar pairsand assigning each member randomly to the experimental and control groups.
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Reporter Stocker is invlved in testing the effects ofw atching the news on the emotional health of young children. She decides to use a class of Montessorichildren and a class of public school elementary children as her experimntal and control groups. This is an example of which type of experiment?
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Static-group comparison.
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Professor Flynn performed an experiment on the effects of interpersonal attraction on conflict oientation, but he used diffreent measures of conflict orientation at the pretest and posttest. Which problem of internal validity does this example reflect?
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instrumentation.
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Elemer, a subject in Professor Jenken's experiment testing the effects of certain films on a person's emotional state, has just undergone a break-up with his girlfriend. He continues with the experiment, however. Which on of the following threats to internal validity is reflect in this example?
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Maturation.
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Professor Holsege conducted an experiment on the effects of lawyer colunteers on parole violations. Those parolees with access to lawyer volunteesr had fewer parole violations than those withou, but the vontrol gropu parolees felt left out and committed more crimes as a result. Which problem of internal validity does this example reflect?
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Demoralization.
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External invalidity refers to problems with:
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generalizability.
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What is the basic difference between the classical design and the Solomon four-group design?
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The Solomon four-gropu design repeats the classical design but adds groups that are not pretested.
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Natural experiments are most likely to resemble which one of the following designs?
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Static-group comparison.
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