During a repeated measures design, counseling researchers note that participants' mental health symptoms are fluctuating significantly. Which type of validity threat would most account for this occurrence?
a. History
b. Instrumentation
c. Attrition
d. Selection
Answer: b. Instrumentation
You might also like to view...
In Kohlberg's ____ stage of moral development, principles like compassion and justice come to underlie moral decision making
a. third b. fourth c. fifth d. sixth
The owner of a store that buys and sells used books has just purchased one by a psychologist who proposed a set of innate principles of perception. The book was most likely written by a(n):
a. psychoanalyst b. Gestalt psychologist c. behaviorist d. Eclectic psychologist
Women score LOWER than do men on:
A) extraversion. B) openness to ideas. C) agreeableness. D) neuroticism.
Pam attended her 20th high school reunion and had a wonderful time dancing the old dances and singing the old songs. According to the multicontextual characteristic of development, her enjoyment may be attributed to:
a cohort effect. fond memories of high school. her success beyond high school. social context.