N405 Ch. 13 Practice Exam Questions And Correct Answers.
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Course
N405
Institution
N405
How do nurse researchers strive for constancy of conditions in implementing a treatment?
A) Having standard written research protocols
B) Using a randomized block design
C) Maximizing the internal validity of the study
D) Avoiding contamination of treatments - Answer A) Having standard writt...
N405 Ch. 13 Practice Exam Questions
And Correct Answers.
How do nurse researchers strive for constancy of conditions in implementing a treatment?
A) Having standard written research protocols
B) Using a randomized block design
C) Maximizing the internal validity of the study
D) Avoiding contamination of treatments - Answer A) Having standard written research protocols*
What is the implication of using the principle of homogeneity to control for extraneous variables?
A) Statistical conclusion validity
B) Generalizability of the findings
C) Contamination of treatments
D) Precision of the design - Answer B) Generalizability of the findings*
What is the most effective method of controlling extraneous variables?
A) Analysis of covariance
B) Matching
C) Randomization
D) Homogeneity - Answer C) Randomization*
Which research design do subjects serve as their own controls?
A) Factorial
B) Randomized block
C) Crossover
D) Balanced - Answer C) Crossover*
The nurse researcher must know in advance the extraneous variables that are to be controlled for which
procedure?
, A) Matching
B) Randomized groups
C) Factorial design
D) Crossover design - Answer A) Matching*
Which is a method of statistical control?
A) On-protocol analysis
B) Analysis of covariance
C) Pair matching
D) Counterbalancing - Answer B) Analysis of covariance*
What is the threat of internal validity that occurs when external events or conditions affect one group
more than another?
A) Maturation
B) Selection
C) Testing
D) History - Answer D) History*
What it the most serious threat to internal validity in a nonequivalent control group design?
A) Testing
B) Selection
C) Maturation
D) History - Answer B) Selection*
When is a study internally valid?
A) Alternative explanations of the results can be ruled out.
B) An experimental design was used.
C) A repeated measures design was used.
D) Precision has been maximized. - Answer A) Alternative explanations of the results can be ruled out.*
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