Around 2 months, infants __________
A) reach 20/20 vision
B) achieve adultlike color vision
C) display sensitivity to pictorial depth cues
D) can focus on objects about as well as adults
Answer: D
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From the goodness-of-fit model, babies with low emotional reactivity benefited most from which the following?
a. face-to-face interaction with a parent b. a parenting style with high demandingness and low tolerance c. a laissez-faire parenting style d. longer periods of sleep and more frequent naps
According to your text, a perfect study would involve
a. random assignment; random selection; realistic setting; control of all extraneous variables. b. random assignment or random selection; control over all extraneous variables. c. high levels of external validity. d. an experiment, which shows that one variable causes another.
What percentage of people carrying the Huntington's gene develop the disorder?
A) 100% B) 50% C) 25% D) about 1% E) 0%
Why does providing free breakfast and lunch to low-income children in preschool make sense?
a) Food keeps them awake for schoolwork. b) Their developing brains and bodies require good nutrition. c) Most low-income children are underweight. d) Food gives young brains greater lateralization.