1) What are single-case designs and when are they most useful?2

1) What are single-case designs and when are they most useful?2. How may a researcher enhance the generalizability of the results of a single case design?3. What is the relationship between quasi-experiments and confounding variables? Provide an example.4. Provide examples of: one-group posttest designs and one-group pretest and posttest designs. What are the limitations of each?5. Provide examples of non-equivalent control group designs. What are the advantages of having a control group?6. What is a quasi-experimental research design? Why would a researcher use a quasi-experimental design rather than a true experimental design?7. What is the difference between a cross-sectional and a longitudinal study? What is a sequential study? Which of these designs is most vulnerable to cohort effects? Which design is most vulnerable to the effects of attrition?8. What are the differences between: needs assessment, program assessment, process evaluation, outcome evaluation, and efficacy assessment? Why is program evaluation important to the field?9. A researcher wants to investigate patriotic behavior across the lifespan. She samples people in the following age groups: 18