A Cognitive Psychologist Has Developed a Computer Simulation of Memory

question 13

Multiple Choice

A cognitive psychologist has developed a computer simulation of memory processes that generates a simulation of reaction times in response to the presentation of previously learned stimuli.The program has been designed to produce a mean reaction time of 200 msec with a standard deviation of 20.The psychologist is worried that the program has stopped working properly because the last 16 trials have produced a mean reaction time of 190 (with the expected standard deviation of 20) .Which of the following statements is true?

• A)A z-score could be calculated for these data.
• B)A z-score could be calculated for these data but no inferences could be made.
• C)A z-score could be calculated for these data but no inferences could be made because it is impossible to get ethical clearance for computer simulations.
• D)A z-score could be calculated but it could not be used to make inferences because the population standard deviation is unknown.
• E)A z-score could be calculated but it could not be used to make inferences because the population standard deviation is likely to be a negative number.

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Definitions:

Solidarity Theory

A sociological concept that emphasizes unity or agreement of feeling or action, especially among individuals with a common interest; mutual support within a group.

Frame Alignment Theory

A sociological theory that explains how social movement organizations align their activities and goals with the interests and beliefs of potential new members to facilitate mobilization.

Relative Deprivation Theory

A sociological theory that explains feelings of discontent or injustice as derived from comparing one's situation against that of others perceived to be better off.

Civil Citizenship

The status or condition of being a member of a state, with associated rights and duties as defined by the state's laws and policies.