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
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Statistics used to describe the distribution and relationship among variables are:
a. Descriptive statistics. b. Variability measures. c. Measures of central tendency. d. Inferential statistics.
Which group in the U.S. has the highest suicide rate?
a. women under the age of 50 b. males over the age of 85 c. children under the age of 6 d. middle-aged males
With one-way communication, a message tends to become both more simplified and more distorted as it is passed along because of _____, in which receivers reduce the amount of information because they recall less information than they receive.
A. sharpening B. leveling C. assimilation D. accommodation
____________ is a mood state wherein the person anticipates future danger or misfortune with apprehension
A) ?Stress B) ?Anxiety C) ?Burnout D) ?Depression