A sample of n = 25 individuals is selected from a population with µ = 80, and a treatment is administered to the sample. What is expected if the treatment has no effect?
a. The sample mean after the treatment should be very different from 80 and should lead you to reject the null hypothesis.
b. The sample mean after the treatment should be very different from 80 and should lead you to fail to reject the null hypothesis.
c. The sample mean after the treatment should be close to 80 and should lead you to reject the null hypothesis.
d. The sample mean after the treatment should be close 80 and should lead you to fail to reject the null hypothesis.
D
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According to research on memory for interrelated sentences,
a. people recall hearing many sentences that were never actually presented. b. people's verbatim memory is generally close to perfect. c. people often believe that they have heard a sentence before, even if the meaning of that sentence is very different from the original. d. several minutes after the material has been presented, people usually cannot remember the general meaning of that material.
Which of the following statements is true of retrieval cues?
a) They are important in helping us remember items stored in long term memory. b) They are aids in rote rehearsal in short term memory. c) They can be helpful in both long- and short term memory. d) They have been recently shown to have little effect on the accessibility of information.