The rats in Dr. Rexington's learning laboratory are on an "FR7" schedule of reinforcement. What does this mean?
a. The rats will receive a food pellet after every seventh bar press.
b. The rats will receive a food pellet after an average of every seven bar presses. c. The rats will receive a food pellet every seven minutes.
d. The rats will receive a food pellet an average of every seven minutes.
e. The rats will receive a food pellet every seven minutes, unless they press the bar seven times in a shorter period of time.
a
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When a psychologist asked groups of participants to listen to three different speakers presenting different lists of letters, he came across evidence for the existence of echoic memory. What was the evidence that supported the existence of echoic memory?
a) The participants had difficulty repeating the letters from all three participants, but if asked immediately for one of the lists, they could repeat it. b) After listening to the lists for a while, the letters became mixed into a single list as they seemed to bounce around the participants' minds like ping pong balls. c) The participants were able to repeat letters from all three speakers, although they could not do the same when presented with the letters in visual format. d) The lists were recalled quite efficiently because our memory for auditory memory goes directly to storage rather than for further detailed processing.
The deaths that cause the most grief are those of parents, spouses, and ____
a. close friends b. children c. grandparents d. siblings