The threat to reliability known as observer drift refers to:
A. the individual being observed altering his or her behavior as a response to being observed.
B. the degree to which the researcher has adequately controlled extraneous variables.
C. a researcher using his/her own personal judgment regarding the performance of a participant in a study.
D. the passage of time and both foreseen and unforeseen events that arise.
Answer: C
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Sources of stress for families with children with disabilities include all of the following EXCEPT:
A. financial burden B. frustration with educational system C. differential diagnosis D. severity of disability E. type of disability
Experimental mortality is most serious when a. survivors might represent groups that are quite different from theunbiased groups that began the experiment
b. subjects are selected on the basis of extreme scores. c. extraneous variables are controlled. d. there is no treatment verification.
Students with ASD have difficulty generalizing social skills. To facilitate generalization a teacher should:
a. make sure the student works on social skills with a familiar person b. have the student practice social skills with peers first c. give the student opportunities to practice skills with many individuals d. guarantee that the student can perform the skill correctly before trying it in new situations
If you have a representative sample, then you can make statements about the general population based on your sample data.
a. True b. False