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help > RE: How to infer direction of significance from an F-test
Feb 16, 2023 01:02 PM | ramtin - KU Leuven
RE: How to infer direction of significance from an F-test
I understand, many thanks for the
clarification.
Kind regards,
Ramtin
Originally posted by Andrew Zalesky:
Kind regards,
Ramtin
Originally posted by Andrew Zalesky:
Hi
Ramtin,
the F-test is not a signed test. This is not specific to NBS but a general property of the F-test.
You could do post hoc t-test to determine direction or look at the boxplots, as you are doing (that's perfectly fine).
Andrew
Originally posted by ramtin:
the F-test is not a signed test. This is not specific to NBS but a general property of the F-test.
You could do post hoc t-test to determine direction or look at the boxplots, as you are doing (that's perfectly fine).
Andrew
Originally posted by ramtin:
Dear Andrew,
Many thanks for your response.
My question relates to any F-test I might perform with NBS. For instance, difference between two groups, contrast [1 1]. Or correlation with a covariate, contrast [0 1], with the first column of the design being the intercept.
At the moment, after a F-test I infer the direction by directly looking at the obtained result, e.g. boxplot or scatterplot of the average connectivity strength within the significant component for all subjects. Is not there any way to instead extract the fitted model and based on the coefficients infer the direction?
Thank you,
Ramtin
Many thanks for your response.
My question relates to any F-test I might perform with NBS. For instance, difference between two groups, contrast [1 1]. Or correlation with a covariate, contrast [0 1], with the first column of the design being the intercept.
At the moment, after a F-test I infer the direction by directly looking at the obtained result, e.g. boxplot or scatterplot of the average connectivity strength within the significant component for all subjects. Is not there any way to instead extract the fitted model and based on the coefficients infer the direction?
Thank you,
Ramtin
Threaded View
| Title | Author | Date |
|---|---|---|
| ramtin | Feb 15, 2023 | |
| Andrew Zalesky | Feb 16, 2023 | |
| ramtin | Feb 16, 2023 | |
| Andrew Zalesky | Feb 16, 2023 | |
| ramtin | Feb 16, 2023 | |