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NURS 371 Final Exam Questions And Correct Answers
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NURS 371 Final Exam Questions AndCorrect Answers
Validity - ANSWER whether or not the results of the study were obtained via sound
scientific methods
Reliability - ANSWER the quality of being trustworthy and believable
- results from expertise and experience
External validity - ANSWER *the findings are generalizable*
- can take findings from small sample size and apply to larger population
What is internal validity? -ANSWER- Knowing for sure it was the independent variable
that created the change in the dependent variable *not confounding variables*
- what you did actually worked
What is a Solomon 4 Group Design -ANSWER- 4 groups total
- 2 groups get intervention, 2 groups serve as control
- 1 control and 1 intervention group get pretest
- all groups get posttest
Beats test-retest bias but still provides baseline data
Factorial Design- QUESTION 4 groups
Examines effect of 2 or > interventions
For example, group gets A, one gets B, one gets AB and one gets nothing
Quasi Experimental Study- QUESTION Level 3
The independent variable is manipulated however there *is no randomization or control
, group*
-usually studies in which it would be unethical for a control group to be included
3 Group RCT - ANSWER - intervention group
- attention control group that doesn't get intervention but gets everything else
- control group gets nothing
- adding the attention control group helps isolate the independent variable
2-Group RCT with Posttest Only - ANSWER - intervention and control group
- not as powerful because w/o pretest there is no base line data
2-Group RCT w/repeated measures- ANSWER- intervention, control, baseline data, then
test scores and test again months later
- *no pretest*
- tests long term data
- creates test-retest bias
What are the threats to Internal Validity? - ANSWER *HARM*
- history
- attrition
- Repeated testing effects
- Maturation
History- ANSWER- something that is happening that is unrelated to your study but
influences the outcome
ex C. diff outbreak would affect hand washing
Attrition- ANSWER- people leaving the study for any reason
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