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TABLE 11-1
Psychologists have found that people are generally reluctant to transmit bad news to their peers. This phenomenon has been termed the "MUM effect." To investigate the cause of the MUM effect, 40 undergraduates at Duke University participated in an experiment. Each subject was asked to administer an IQ test to another student and then provide the test taker with his or her percentile score. Unknown to the subject, the test taker was a bogus student who was working with the researchers. The experimenters manipulated two factors: subject visibility and success of test taker, each at two levels. Subject visibility was either visible or not visible to the test taker. Success of the test taker was either top 20% or bottom 20%. Ten subjects were randomly assigned to each of the 2 x 2 = 4 experimental conditions, then the time (in seconds) between the end of the test and the delivery of the percentile score from the subject to the test taker was measured. (This variable is called the latency to feedback.) The data were subjected to appropriate analyses with the following results.
-Referring to Table 11-1, in the context of this study, interpret the statement: "Subject visibility and test taker success interact."
Shared Sleeping
The practice of sleeping in close proximity to others, typically family members.
Breast Feeding
The act of feeding a baby with milk directly from the mother's breast, which provides essential nutrients and antibodies.
Brain Development
The process involving physical growth and maturation of the brain, including the formation of neurons, synaptic connections, and neural pathways.
Breathing Pauses
Temporary cessations of breathing, which can be normal or indicative of respiratory conditions.
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