Stimuli that increase the frequency of a behavior when they are removed are called ______
a. positive reinforcers c. punishers
b. negative reinforcers d. aversive conditioners
B
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Damage to the hippocampus impaired patient H.M. in what way? a. He could not form procedural memories
b. He could not form implicit memories. c. He could not form new short-term memories. d. He could not form new long-term memories.
Baby Jay accidently sucked his thumb, now seems to love to suck his thumb, and has learned to do it over and over again. This best exemplifies the concept of a
a. beginning of thought. b. primary circular reaction. c. secondary circular reaction. d. tertiary circular reaction.
In the following, 
, what does the z-score tell us?
A. that the population mean is 2.33 SDs above the current class mean B. that the current class mean is 2.33 SDs above the population mean C. that the current class mean is 2.33 SDs below the population mean D. that the population mean is 2.33 SDs below the current class mean
Wes is helping his brother lay new flooring in his house. Even though there are four stacks of floor tiles next to each other, he perceives the one stack of rough gray granite separately from the three stacks of smooth gray marble because of the grouping principle of
A. common region. B. texture. C. proximity. D. linear perspective.