The problem in observational research that resembles the threat to validity called instrumentation in experimental research is
a. observer bias.
b. subject reactivity.
c. observer drift.
d. ethological bias.
C
Psychology
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Which of the following describes the temperaments classified by Chess and Thomas as slow-to-warm-up?
a. distant and unfriendly b. unpredictable and challenging c. friendly and obey rules d. shy and withdrawn
Psychology
By approximately 18 months of age, children exhibit the ability to
A. adjust arm and hand tension upon repeatedly receiving the same object B. receive three or more toys C. cross midline to hand toys to another person D. adjust arm and hand tension, receive three or more toys, and cross the midline to hand toys to another person.
Psychology