A possible threat to validity in which a participant does not show up for a study at a scheduled time or fails to complete the study is called ______.
A. history effect
B. attrition
C. instrumentation
D. regression toward the mean
Answer: B
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Rose lives with several of her friends, who are also elderly. She has a high desire to please and help others, but has difficulty with common sense, so her friends often check on her activities and interactions with others. Rose's friends are most likely trying to protect her from becoming a victim of
a. fraud b. physical abuse. c. emotional abuse. d. neglect.
The purpose of the ______ is to include a shortened version of your title that runs along the top of every other page of a published article to identify the article within the journal.
a. header b. subtitle c. footer d. running head
Which of the following is true of glial cells?
a. they have direct contact with the outside world b. they carry messages from the brain to muscles to produce behaviors c. they remove wastes from the central nervous system d. they carry information toward the spinal cord and brain
A snarling dog approached Rob suddenly. He began to sweat, his heart beat more rapidly, and his muscles tensed. According to the James-Lange theory, Rob first felt the emotion of fear:
a. right after seeing the dog and before physiological arousal began b. right after the physiological arousal began c. at the same time as the physiological arousal began d. right after he evaluated or appraised the physiological arousal