1. A school psychologist records the out-of-seat behavior of a group of hyperactive children for one week. The following week she administers verbal praise. She continues to alternate tokens and verbal praise for 3 additional weeks while continuously recording their out-of-seat behavior. This is a(n) __________.
2. As the best approximation to the randomized control group design, field researchers often use:
3. Which of the following is NOT a serious threat to validity of the pretest-posttest one-group design, O X O, is ___________.
4. Interobserver reliability is to __________ as intraobserver reliability is to __________.
5. __________ data are data collected previously by people not directly associated with the current research.
6. Statistical regression is a threat to the internal validity of a study whenever:
7. 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.
8. In nonprobability sampling, the likelihood of selecting a particular subject is __________, while in probability sampling, the likelihood of selecting a particular subject is __________.
9. In the interrupted time-series design __________.
10. A social worker wished to evaluate the benefits of letting nursing home residents care for a plant. On one floor, the residents were given a plant to care for in their room. On another floor, residents were not given a plant. The social worker measured their activity levels before and after. This is an example of a(n) __________.
11. Comparisons of quasi-experiments to true experiments reveal that __________.
12. The use of a nonequivalent control group is an attempt to control for __________.
