Compare demand characteristics and expectancy effects
What will be an ideal response?
Both are threats to validity in research. Demand characteristics influence how a research participant responds; expectancy effects influence an observer's ratings.
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Marcus often has a burning sensation or pain in his stomach after eating. He often experiences occasional vomiting. He may be suffering from:
A. muscle contraction. B. asthma. C. hypertension. D. ulcers.
Danyon is a popular student who plays basketball and excels at track and field. He describes his friends and other students on the sports teams at school as jocks, but doesn't feel that this label really describes him. Most likely, Danyon may believe that
a. too unique to be labeled as any one thing. b. not as good at sports as his friends. c. being ostracized from the group. d. none of the above.
__________ is to impairment in initiating movement as __________ is to uncontrollable movements.
A. Parkinson's; mirror neuron disorder B. Huntington's; mirror neuron disorder C. Parkinson's; Huntington's D. Huntington's; Parkinson's
A disadvantage of using a between-subjects experimental design is that ______.
A. it requires that the same participants are observed in each group B. the sample size required to conduct a between-subjects design can be large C. it places a very large burden on the participants and researcher D. it does not allow for the use of random assignment of participants to groups