During middle childhood:
a. same-sex peer relationships decline dramatically.
b. children's friends tend to be almost exclusively the same gender.
c. children tend to have the same number of same- and opposite-sex friends.
d. girls tend to play in larger groups than boys.
B
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Which of these does Mitch Resnick claims is key to cultivating intuitions about decentralized systems?
a. Focusing on the individual rather than the environment while studying navigation b. Examining interaction between objects in terms of levels c. Examining orderly behavior in favor of randomness d. Giving up simulations in favor of observing real-world interactions.
A researcher plans to conduct an experiment to test whether a cup of hot milk at night helps people fall asleep faster than usual. In this study, the independent variable is ________
a. the amount of time it takes participants to fall asleep. b. the consumption of hot milk at bedtime. c. the number of participants drinking hot milk at bedtime. d. the number of hours each participant sleeps for.