The length of time an infant spends looking at a circular pattern, as compared with a square pattern, is an indicator of
A. visual-recognition memory.
B. attention recovery.
C. visual preference.
D. habituation.
Answer: C
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Genetic factors for schizophrenia are supported by:
A. studies of twins with schizophrenia B. brain deficits among schizophrenics C. the dopamine theory of schizophrenia D. the diathesis stress theory of schizophrenia
A researcher plans to conduct a research study comparing two treatment conditions with a total of 20 participants. Which of the following designs would produce 20 scores in each treatment?
a. An independent-measures design b. A repeated-measures design c. A matched-subjects design d. All of the other options would produce 20 scores in each treatment.
Maternal bonding behaviors in humans, such as vocalizations and gazing, are positively correlated with a woman's levels of which of the following hormones during her pregnancy?
A. testosterone B. vasopressin C. oxytocin D. estradiol
Robert Plutchik's "emotion wheel" proposes that
a. four pairs of opposite emotions are the basis for all other emotions. b. ten emotions are the basis of all other emotions. c. humans have an infinite number of emotions which cannot be separated from each other. d. infants can feel only three different kinds of emotions. e. humans cannot experience two or more emotions simultaneously.