Open TarandeepKang opened 3 months ago
Hi @TarandeepKang,
The Games-Howell and Dunnett's test are already in JASP, and after a quick scan of the paper you linked the Games-Howell seems to be performing the best. Is there something that the others offer that the Games-Howell test does not?
Cheers, Johnny
Apologies Johnny! It's been a long day and apparently I hadn't noticed them when I was looking through the options before making the request. I was just on my way here to close the request, hoping you hadn't noticed it yet. I wonder, would you consider adding the simulation study to the help file?
Best,
Tarandeep
PS, you are getting bloody efficient! I made a regression request which you dealt with in under a week, and this request you have responded to this in less than half an hour, and in the evening, no less! Much appreciated, as always!
Description
New recommendations suggest that current implementations are not optimal for balancing power and error control (especially in the case of assumption violation)
Purpose
Improved power and type-one error control
Use-case
No response
Is your feature request related to a problem?
Current options may not be optimal
Is your feature request related to a JASP module?
ANOVA
Describe the solution you would like
Add Dunnett’s C, Dunnett’s T3, Games-Howell, and Tamhane’s T2 to JASP
Describe alternatives that you have considered
No response
Additional context
According to my reading of this simulation study: Sauder, D. C., & DeMars, C. E. (2019). An Updated Recommendation for Multiple Comparisons. Advances in Methods and Practices in Psychological Science, 2(1), 26–44. https://doi.org/10.1177/2515245918808784
Note that this would still bring the total to far fewer than the overkill of 18 implemented in SPSS!