How were researchers able to prove that infants can remember motor activities?
What will be an ideal response?
In one study, 2- to 3-month-old infants were taught to kick their foot, which was tied to a mobile with a ribbon, to make the mobile move. One week later, when the infants were reattached to the mobile they kicked vigorously, indicating their memory of the first occasion. The infants would kick even 4 weeks later if the experimenter gave the mobile a shake to remind them of its movement.
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Children's first form of sentence lengthening is the
a. use of prepositional phrases. b. increased use of verbs. c. expansion of object nouns into noun phrases. d. addition of articles. e. use of compound nouns.
A form of learning in which a voluntary response is strengthened or weakened by association with positive or negative consequences is
A) reinforcements. B) operant conditioning. C) classical conditioning. D) modeling.
Which of the statements about cell membranes is not correct?
A) They contain specialized protein channels B) They are made of two layers of lipids C) Many millennia ago they were free-living single-celled organisms D) They define cell boundaries
Failing to reject the null hypothesis when the research hypothesis is true is
A) effect size. B) power. C) a Type I error. D) a Type II error.