Asked by Lorre Taylor on Jul 05, 2024
Verified
When faced with a situation that involves comparing each group in a research study with a single reference group, which method for controlling familywise error would be most appropriate?
A) complex comparison
B) Scheffé Test
C) Tukey Test
D) Dunnett Test
Familywise Error
The probability of making one or more false discoveries, or Type I errors when performing multiple hypotheses tests.
Scheffé Test
The Scheffé test is a post-hoc statistical analysis method used to identify differences among means in a set of groups, following an ANOVA.
Dunnett Test
Statistical procedure used to control familywise error when comparing each group with a single reference group.
- Identify appropriate statistical tests for controlling familywise error in various research designs.
Verified Answer
LP
Lourie PetersJul 08, 2024
Final Answer :
D
Explanation :
The Dunnett Test is specifically designed for situations where multiple groups are being compared to a single reference group. It controls the familywise error rate by adjusting the alpha level for each comparison in order to maintain an overall alpha level for the entire set of comparisons. The other methods listed (complex comparison, Scheffé Test, and Tukey Test) are not designed specifically for this type of situation and may not provide adequate control of familywise error.
Learning Objectives
- Identify appropriate statistical tests for controlling familywise error in various research designs.