CNUR 209: Unit 7 - Critical Appraisal of
Quantitative Research Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
What are the three types of Internal, external, and statistical
validity? conclusion.
Define internal validity - The extent that the independent variable
is
assumed to the cause the outcome
- Relates to how well a study is conducted
What are some threats to internal - Temporal ambiguity
validity? - Selection bias
- History bias
- Maturation bia
- Mortality bias
Define temporal ambiguity Unclear whether the independent variable
preceded the dependent variable, or vice
versa.
Define selection bias Biased results due to pre-existing
differences
between groups.
Quantitative Research Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
What are the three types of Internal, external, and statistical
validity? conclusion.
Define internal validity - The extent that the independent variable
is
assumed to the cause the outcome
- Relates to how well a study is conducted
What are some threats to internal - Temporal ambiguity
validity? - Selection bias
- History bias
- Maturation bia
- Mortality bias
Define temporal ambiguity Unclear whether the independent variable
preceded the dependent variable, or vice
versa.
Define selection bias Biased results due to pre-existing
differences
between groups.
