. In which of the following situations is it most likely that maturation is a probable threat to internal validity and should be a special concern when selecting a research design?
A. You will provide a 6-week treatment for a group of depressed clients who have been depressed for a minimum of a year.
B. You will provide a 1-year treatment program for a group of people who have recently (within the past month) lost a spouse to death. You will measure depression as the vehicle of success.
C. You will provide tutoring to a group of at-risk middle school students for 8 weeks and you will compare their grades during the current 8-week grading period to the previous 8-week grading period. These clients have been experiencing poor grades for at least a year.
D. You will measure knowledge of job hunting skills once at the beginning of a 3-hr training session for unemployed clients and again at the end of this training session.
Ans: B
You might also like to view...
Children qualify for ___________ if they are not eligible for Medicaid,
are not covered by other health insurance, and live in low-income families. A. Healthy Kids Health Insurance Program B. State Children's Health Insurance Program C. UnitedHealth for Children Group D. Children's Medicaid Health Insurance Program
What are the factors that make cocaine as popular a drug as it is? What other factors do you think keep the appeal, and the use, of cocaine in check?
What will be an ideal response?
In the evaluation of treating panic disorder that was discussed in Research in Practice 11.2,
what type of single?system design was used in order to strengthen conclusions about causation?
a. ABA reversal design b. multiple baseline design across subjects c. multiple treatment design d. randomized treatment design
Explain why it is important that deviations from the mean are expressed as positive values.
What will be an ideal response?