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| 1 | |
If subjects aren't randomly assigned to treatment or control groups, the threat to validity is called: |
| | A) | experimental attrition. |
| | B) | premeasurement sensitization. |
| | C) | systematic selection. |
| | D) | matched group bias. |
| | E) | noncomparable groups. |
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| 2 | |
If some subjects have extreme pre-measure scores merely by chance, so when they're tested again, the second measure will, on average, be less extreme, this source of bias is called: |
| | A) | measurement instability. |
| | B) | premeasurement sensitization. |
| | C) | experimental attrition. |
| | D) | regression to the mean. |
| | E) | systematic selection. |
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| 3 | |
Designs that randomly assign subjects to treatment and control groups: |
| | A) | are the most pure forms of experimentation. |
| | B) | provide the most complete information. |
| | C) | provide the greatest control over threats to internal validity. |
| | D) | All of these. |
| | E) | None of these. |
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| 4 | |
The design the text refers to as the "ultimate experimental design" is the: |
| | A) | pre- and postmeasure, extended design. |
| | B) | postmeasure only, extended design. |
| | C) | four-group, six-measure design. |
| | D) | single group, pre- and postmeasurement series. |
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| 5 | |
With extended experimental designs, the treatments and measurements must be done simultaneously if: |
| | A) | all of the threats to internal validity are to be controlled. |
| | B) | all of the threats to external validity are to be controlled. |
| | C) | any of the threats to internal validity are to be controlled. |
| | D) | any of the threats to external validity are to be controlled. |
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| 6 | |
"Nonequivalent groups" designs are ordinarily used when: |
| | A) | multiple treatment groups are required. |
| | B) | multiple pre- and postmeasurements are needed. |
| | C) | the experiment can't be conducted in the field. |
| | D) | the situation prohibits random assignment. |
| | E) | the number of available subjects is limited. |
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| 7 | |
"Time series" designs are especially practical when: |
| | A) | the measurements already exist. |
| | B) | the measurements are routine and periodic. |
| | C) | both the degree and the duration of effects have to be measured. |
| | D) | All of these. |
| | E) | None of these. |
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| 8 | |
The degree to which the results of an experiment can be generalized to the population is a measure of: |
| | A) | external validity. |
| | B) | internal validity. |
| | C) | artificiality. |
| | D) | reactivity. |
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| 9 | |
The ultimate blind procedure is: |
| | A) | a laboratory experiment where subjects don't even know they're participating. |
| | B) | a field experiment where subjects don't even know they're participating. |
| | C) | a laboratory experiment where those running the experiment don't even know they're doing so. |
| | D) | a field experiment where those running the experiment don't even know they're doing so. |
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| 10 | |
Which is NOT one of the few, very basic themes or elements for all experiments? |
| | A) | Selection of subjects |
| | B) | Assignment to groups |
| | C) | A method of instruction |
| | D) | Some form of treatment |
| | E) | A means of measurement |
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