Chapter 10
| 1. The student teacher waited a week after being introduced to her subjects before conducting her observation in order to __________. |
 
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| 2. Whenever a researcher schedules a treatment following high or low scores on the dependent measure or selects subjects based upon extreme scores he should be concerned with the threat to internal validity of __________. |
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| 3. __________ is a strategy to reduce reactivity while __________ is a strategy to reduce observer bias. |
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| 4. The comparison group in a nonequivalent control group design is called nonequivalent because __________. |
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| 5. The use of a nonequivalent control group is an attempt to control for __________. |
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| 6. Goodall reported the following description of chimpanzee behavior: "Beethoven presents, pant-grunts to Satan; Satan, hair out, stamps on Beethoven, who screams and falls 3 meters to the ground." This description is: |
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| 7. __________ measures have zero reactivity. |
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| 8. Nonprobability sampling differs from probability sampling in that: |
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| 9. __________ data are data collected previously by people not directly associated with the current research. |
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| 10. The __________ design is to quasi-experimental designs as the AB design is to single-case designs. |
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| 11. A graduate student was observing the depressive behavior of a patient on the unit. She was kept unaware of when the patient started treatment. Such a control to reduce observer bias is called __________. |
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| 12. Which of the following methods of collecting data in a survey usually yields the lowest response rate(s)? |
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