Asked by Jessica Hartley on Jul 25, 2024
Verified
The number of degrees of freedom for an A*B interaction effect is ______.
A) the number of factors minus one
B) based on the number of levels for factor A
C) based on the number of levels for factor B
D) based on the number of levels for factors A and B
A*B Interaction Effect
The effect on a dependent variable that results from the combination of two independent variables, distinct from the effect of each variable individually.
Degrees of Freedom
Represents the number of independent values or quantities that can vary in an analysis without violating any constraints.
Number of Levels
Refers to the different categories or values that an independent variable can take in an experiment or study.
- Grasp the impact of sample size and level numbers on the degrees of freedom in factorial designs.
Verified Answer
TJ
Tiffany JonesJul 31, 2024
Final Answer :
D
Explanation :
The number of degrees of freedom for an A*B interaction effect is based on the number of levels for factors A and B. It is calculated as (number of levels for factor A - 1) * (number of levels for factor B - 1). Therefore, the correct answer is D.
Learning Objectives
- Grasp the impact of sample size and level numbers on the degrees of freedom in factorial designs.