In the Alzheimer's brain, the protein called tau is __________.
A. a sticky substance at the core of a plaque
B. a neurotoxic substance
C. like scaffolding, supporting a tube inside neurons and allowing them to conduct nerve impulses
D. misshapen and tangled, causing the neuron tube to collapse
Answer: D
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Suppose you are testing children who are monolingual English speakers and children who are fluent in both English and Spanish. Assuming that their other characteristics are similar, you are likely to find that
a. the monolinguals are more polite than the bilinguals. b. the bilinguals are more aware of situations in which a listener might require additional information. c. the monolinguals are better at following your instructions. d. the two groups are similar in their pragmatic and syntactic skills, but not in their metalinguistic skills.
Constance used to really enjoy playing softball on her school team, but last week she got hit in the head by a line drive, and since then she hasn't wanted to play softball. Based on what is known about operant conditioning, you should conclude that for Constance, being hit by a line drive acted as a:
a. negative punisher for playing baseball b. negative reinforcer for playing baseball c. positive punisher for playing baseball d. conditioned stimulus for playing baseball
Which guideline for the psychological detective is concerned with the question of cause and effect?
a) What do statistics reveal? b) What is the claim and who is making it? c) Is the claim based on scientific observations? d) Are there plausible alternative explanations for the claim?
Hospital residents working heavy schedules perform similarly on cognitive tasks to people with ________
a. no alcohol in their systems b. blood alcohol levels between .04 and .05 c. blood alcohol levels between .07 and .08 d. blood alcohol levels between .01 and .02