Which of the following is true about the relationship between reliability and validity?
A. A measure may be reliable but invalid.
B. A measure may be valid but unreliable.
C. A measure must be more reliable than valid.
D. A measure must be more valid than reliable.
Answer: A
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According to self-discrepancy theory, the disorder most likely to develop from a discrepancy between the actual self and the ought self is
a. depression. b. an anxiety-related disorder. c. antisocial personality disorder. d. schizophrenia.
The onset of bulimia ____
a. typically occurs in late-adolescence b. typically occurs in mid-adolescence to late-adolescence c. typically occurs in adulthood d. may occur at any time after the onset of puberty (no particular time is more likely than others)
In research studies, the term "effect size" refers to a. how much each treated and untreated person in the study changes
b. the power of the statistical tests that are used to detect the impact of the independent variable. c. how many subjects are included in a particular study. d. the degree of external validity that the study has.
Which measure of central tendency indicates the most frequently occurring score in a distribution?
a. mean b. median c. mode d. range