The greater the number of respondents who do not complete a survey, the _____
a. lower the internal validity of the experiment
b. less representative the sample
c. less time it takes to complete the study
d. more incentives the researcher will have to offer respondents
B
The sample will be less representative because termination is usually systematic rather than random.
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Grace is sitting in class when, without warning, her heart began to pound, her chest felt tight, and a feeling of dizziness came over her. She felt extremely fearful. Over the next few weeks, the same thing happened several times. Her doctor cannot find anything wrong with her heart. Grace is probably suffering from ____
a. ?generalized anxiety disorder b. ?obsessive-compulsive disorder c. ?panic disorder d. ?a phobia
Which of the following is the unavoidable anguish that comes from knowing we are personally responsible for our lives and need to make wise and courageous choices in order to find meaning in this impersonal world?
a. neurotic anxiety b. moral anxiety c. existential anxiety d. the anxiety reduction hypothesis
Which structure of the brain is about the size of a small fist and is found atop the brain stem? What function is associated with this "lesser brain"?
What will be an ideal response?
The symbol for the standard error of the mean is
Indicate whether the statement is true or false