1. The threat to internal validity resulting from normal fluctuations in measures is called:
2. Which of the following is NOT a serious threat to validity of the pretest-posttest one-group design, O X O, is ___________.
3. In the interrupted time-series design __________.
4. Comparisons of quasi-experiments to true experiments reveal that __________.
5. __________ data are data collected previously by people not directly associated with the current research.
6. People who commit suicide sometimes leave notes. A researcher analyzed the contents of suicide notes in order to explain why people commit suicide. This study has the flaw of __________.
7. Which of the following is NOT a factor that is known to influence error?
8. Mail surveys are associated with __________ while face-to-face surveys are associated with __________.
9. Which of the following methods of collecting data in a survey usually yields the lowest response rate(s)?
10. The comparison group in a nonequivalent control group design is called nonequivalent because __________.
11. Rosemary Wood, the secretary for President Nixon, erased portions of the tapes where the President and his staff discussed the Watergate break-in. Later scholars have examined these tapes to assess the degree of integrity of the Nixon Presidency. This example represents the problem of __________ in archival data.
12. A coding scheme classifies an animal's behavior into categories such as grooming, looking for food, and sexual display. This scheme is using a(n) __________ description.
