________ means that everyone in the population has the same likelihood of being asked to participate in the study.
a. operationalizing
b. placebo effect
c. random assignment
d. random sampling
Ans: d. random sampling
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Five-month-old Stewart enjoyed repeatedly shaking his rattle in new and innovative ways in order to hear the different sounds each new movement made. According to Piaget, Stewart is demonstrating a
a. simple reflex. c. secondary circular reaction. b. primary circular reaction. d. tertiary circular reaction.
The key property of addictive drugs relates to __________.
A. their ability to inhibit dopamine in brain B. the withdrawal that follows termination of the drug C. their reinforcing effects D. their capacity to produce tolerance
According to the cognitive-developmental theory, young preschoolers believe that sex differences are based on __________
a) biology b) attire c) individual choice d) desire
The fallacy of the commons refers to __________
a) the way to disprove the Gaia hypothesis b) a method for reframing c) the fact that neuroplasticity is rare among less-educated individuals d) the false belief that we can continue to use Earth’s resources without any consequences