One criticism of parental reports of temperament is that
A) most parents do not understand the measures used in temperament research.
B) they are inconvenient for researchers to administer.
C) depressed mothers perceive their babies as less difficult than they really are.
D) information from parents is biased.
D
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In a study of twins reared apart in the 1980s and 1990s, a sample of identical twins who were raised in separated environments produced scores on three measures of intelligence that were as similar to each other as a sample of twins who were raised together. Though the sample sizes were relatively small, this research has been repeated with approximately the same findings. We can have some confidence that these findings are valid because of the critical thinking principle of
A) replicability. B) falsifiability. C) Occam's Razor. D) extraordinary claims.
When Savage-Rumbaugh and colleagues compared the language performance of Kanzi,
a pygmy chimpanzee, with a 2-year-old human, they found that a. Kanzi's syntax was less complex, but his vocabulary was the same. b. the 2-year-old performed better on novel commands. c. they performed equally well. d. Kanzi's performance was better for novel forms of command. e. the 2-year-old had a larger vocabulary.
Sam wants to borrow his father's car to use on a date. Because his dad becomes absorbed in reading the newspaper, Sam must repeat his request several times before he gets his dad's attention
From week to week he does not know how many requests he will have to make. What type of schedule of reinforcement is involved here? a) fixed-ratio b) fixed-interval c) variable-ratio d) variable-interval
Andrea's baby instinctively begins searching for a nipple whenever he is picked up. This behavior is the ______ reflex
a. sucking c. rooting b. comfort contact d. grasping