To study the effect of daycare programs on academic performance, a researcher follows the same 30 children who did or did not attend daycare programs as they go through kindergarten to sixth grade. Which type of design is the researcher using?
a. Cross-sectional
b. Cohort
c. Latitudinal
d. Longitudinal
Answer: D
Rationale: This research design is also hampered by the issue of attrition, which occurs when participants drop out, become ineligible, pass away, or can no longer participate in a study for other reasons.
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What additional interest(s) did Galton research?
a. Arithmetic by smell b. Paranoid disorders c. The power of prayer d. All of the above. e. None of the above.
A personality feature cited as a risk factor for bulimia nervosa is
a. nervousness. b. impulsivity. c. distractibility. d. eagerness.
In an experimental study on the effects of exercise on stress, subjects are randomly assigned to either the no exercise group or the exercise group. These groups represent the _____ and the _____, respectively
a. independent variable; dependent variable b. dependent variable; independent variable c. control group; experimental group d. experimental group; control group
Intelligence more closely predicts happiness in individualistic countries.
Answer the following statement true (T) or false (F)