Skip to main content
Cross Validated

Return to Question

Gave Individual a capital letter to make it clearer it is a factor.
Source Link
Amorphia
Amorphia
  • 1.2k
  • 1
  • 9
  • 20

I have a problem with model structure because of the way factors are nested in a potentially non-hierarchical way. I'm not sure if I fully understand the issue but I can't find a way to specify the model which Minitab or R will process without error.

The design is fairly simple. I have one response variable Reject which is measured under two levels of a within-subjects factor Equal and under two levels of a between-subject factor Cost. I also want to include Gender as a factor. I account for the within subject design by including individualIndividual as a random factor.

I think the problem is that individualIndividual is nested under both Gender (because each individual has only one gender) and Cost (because that is a between-subject factor), but neither of Cost or Gender is nested in the other. So that perhaps makes any valid model non-hierarchical (that is in any case Minitab's complaint).

Has anyone got any tips for how to construct a valid model testing the significance of Equal, Cost, and Gender, implementable in R or Minitab?

I have a problem with model structure because of the way factors are nested in a potentially non-hierarchical way. I'm not sure if I fully understand the issue but I can't find a way to specify the model which Minitab or R will process without error.

The design is fairly simple. I have one response variable Reject which is measured under two levels of a within-subjects factor Equal and under two levels of a between-subject factor Cost. I also want to include Gender as a factor. I account for the within subject design by including individual as a random factor.

I think the problem is that individual is nested under both Gender (because each individual has only one gender) and Cost (because that is a between-subject factor), but neither of Cost or Gender is nested in the other. So that perhaps makes any valid model non-hierarchical (that is in any case Minitab's complaint).

Has anyone got any tips for how to construct a valid model testing the significance of Equal, Cost, and Gender, implementable in R or Minitab?

I have a problem with model structure because of the way factors are nested in a potentially non-hierarchical way. I'm not sure if I fully understand the issue but I can't find a way to specify the model which Minitab or R will process without error.

The design is fairly simple. I have one response variable Reject which is measured under two levels of a within-subjects factor Equal and under two levels of a between-subject factor Cost. I also want to include Gender as a factor. I account for the within subject design by including Individual as a random factor.

I think the problem is that Individual is nested under both Gender (because each individual has only one gender) and Cost (because that is a between-subject factor), but neither of Cost or Gender is nested in the other. So that perhaps makes any valid model non-hierarchical (that is in any case Minitab's complaint).

Has anyone got any tips for how to construct a valid model testing the significance of Equal, Cost, and Gender, implementable in R or Minitab?

Source Link
Amorphia
Amorphia
  • 1.2k
  • 1
  • 9
  • 20

Is my nested random-effect model non-hierarchical?

I have a problem with model structure because of the way factors are nested in a potentially non-hierarchical way. I'm not sure if I fully understand the issue but I can't find a way to specify the model which Minitab or R will process without error.

The design is fairly simple. I have one response variable Reject which is measured under two levels of a within-subjects factor Equal and under two levels of a between-subject factor Cost. I also want to include Gender as a factor. I account for the within subject design by including individual as a random factor.

I think the problem is that individual is nested under both Gender (because each individual has only one gender) and Cost (because that is a between-subject factor), but neither of Cost or Gender is nested in the other. So that perhaps makes any valid model non-hierarchical (that is in any case Minitab's complaint).

Has anyone got any tips for how to construct a valid model testing the significance of Equal, Cost, and Gender, implementable in R or Minitab?