A study of six anxiety disorders identified in the Virginia Adult Twin Study of Psychiatric and Substance Use concluded that:
a) GAD was influenced primarily from the environment
b) GAD was influenced primarily from genetics
c) GAD had a genetic component for females only
d) GAD had a genetic component for both males and females
d
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If reinforcement sometimes occurs after three responses, sometimes after five, sometimes after seven, and so forth, then the schedule of reinforcement is _______ __________
Fill in the blank(s) with correct word
According to developmental psychologist K. Warner Schaie, verbal ability rises until about the start of the __________ and stays fairly steady throughout life.
A. 60s B. 50s C. 40s D. 30s
Which type of research design is the only one that involves the manipulation of independent variables?
Peer interactions are a topic of particular interest for researchers studying the _______
domain. a. physical b. cognitive c. socioemotional d. maturational