Suppose you have gone to great lengths to determine which participants will perform the experiment at what time and in what group, but some participants just fail to show up for their appointments. What should you do?
a. nothing; conduct the experiment as planned, without their data
b. randomly select and assign new participants to take their place
c. estimate what their performance would have been based on how other members of their group performed and add it in to your results
d. to fill in the gaps in your groups, take the nearest willing volunteers
B
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The Hawthorne effect refers to the fact that
a. people act differently than normal in an artificial, laboratory setting. b. if people become involved in a research task, the task takes on experimental realism. c. extraneous variables can result in a reduction in external validity. d. people want to cooperate with a researcher and produce desirable results when being studied.
A severe reduction in the world's population comes from xenophobia
a. True b. False Indicate whether the statement is true or false