Which of the following statements is supported by research on crying?
A) Fatigue is the most common cause of infant crying.
B) Newborns often cry at the sound of another crying baby.
C) Crying peaks at 12 weeks and then steadily declines.
D) Nearly all infants show signs of colic in the first few months of life.
B
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Deb has blue eyes; Erv's eyes are brown. The difference in eye color is the result of different pigments in the:
A. iris B. pupil C. cornea D. lens
A person who demonstrates reduced sensitivity to stimuli in the band of fibers enervating the hindbrain termed the _____ might be more likely to be _____.
A) reticular formation; anxious B) reticular formation; outgoing C) corpus callosum; altruistic D) corpus callosum; neurotic
Which of the following is the best means of randomly assigning subjects to conditions?
a. Place students into groups in the order they sign up for the experiment. b. Placing every other student into one of the two groups. c. Give each student a number and compare them to a random number table. d. Give each student a number, write them on slips of paper and shake them in a hat.
______ is a symmetrical distribution where the percentage of scores in each portion of the distribution is known.
A. Normal distribution B. Normal deviation C. Even distribution D. Standard distribution