[Feature Request]: Option to analyze statistical designs used in agriculture research.

[samsuriwahid]

Description

Option to analyze data using Repeated Measures MANOVA, Splot design and Nested Design.

Purpose

No response

Use-case

No response

Is your feature request related to a problem?

No response

Is your feature request related to a JASP module?

ANOVA

Describe the solution you would like

An option to analyze data from those experimental designs.

Describe alternatives that you have considered

No response

Additional context

No response

[tomtomme]

@samsuriwahid Thx for the request. We had similar ones in the past, but those were closed - maybe due to misunderstandings on our side in combination with a lack of details on the side of the requesters. You could help us here by reading those two past issues about split-plot designs (which I suppose you are referring to with "splot" and "nested":

https://github.com/jasp-stats/jasp-issues/issues/793 https://github.com/jasp-stats/jasp-issues/issues/1682

After reading those: Can you confirm that split-plot is not yet covered by RM ANOVA and factorial ANOVA? Can you then give some more details and maybe links to R-Packages which implement those designs or papers where those are detailed? Thank you very much!

[TarandeepKang]

Hi, Thomas,

I am obviously not the original poster, but I just saw this and thought I would share something. Split plot designs are not covered by repeated measures ANOVA/ factorial ANOVA as currently implemented neither as far as I'm aware of, is the nested variation as requested here. There is however a great package that takes care of this, developed by Sarah Friedrich, Frank Konietschke and Markus Pauly

Bathke, A. C., Friedrich, S., Pauly, M., Konietschke, F., Staffen, W., Strobl, N., & Höller, Y. (2018). Testing Mean Differences among Groups: Multivariate and Repeated Measures Analysis with Minimal Assumptions. Multivariate Behavioral Research, 53(3), 348. https://doi.org/10.1080/00273171.2018.1446320

Friedrich, S., & Pauly, M. (2018). MATS: Inference for potentially singular and heteroscedastic MANOVA. Journal of Multivariate Analysis, 165, 166–179. https://doi.org/10.1016/j.jmva.2017.12.008

Friedrich, S., Konietschke, F., & Pauly, M. (2019). Resampling-Based Analysis of Multivariate Data and Repeated Measures Designs with the R Package MANOVA.RM. The R Journal, 11(2), 380. https://doi.org/10.32614/RJ-2019-051

Despite the name of the package I'm not really sure about this repeated measures MANOVA analysis, I know it's implemented in SPSS but I've never used it before

[samsuriwahid]

I appreciate your prompt response. Let me respond on the RM MANOVA. The R code for RM MANOVA is multRM() function.Let me give a hypothetical example of RM MANOVA experiment. An experiment was conducted to study the effects of 3 Nitrogen level and 2 irrigation regimes on the growth parameters and yield of maize plants in pots arranged as CRD. For each factor combinations, the samples were replicated 5 times. Every week, the height, leaf numbers and leave SPAD readings were taken.IV - Nitrogen level and Water regimeDV - Height, Leave numbers, SPAD readings (measured every week until harvest)I don’t know how the data can be analysed using JASP under current options.I have a feeling that the split plot and nested design can be analysed using the GLM or GLMM option in JASP but I haven’t explored it yet.Thank you.Sent from my iPhoneOn 2 Sep 2024, at 6:00 PM, TarandeepKang @.***> wrote: Hi, Thomas, I am obviously not the original poster, but I just saw this and thought I would share something. Clock designs are not covered by repeated measures and overall factorial and over as currently implemented neither as far as I'm aware of the nested variation as requested here. There is however a great package that takes care of this developed by Sarah Friedrich, Frank Konietschke and Markus Pauly https://journal.r-project.org/archive/2019/RJ-2019-051/index.html Despite the name of the package I'm not really sure about this repeated measures MANOVA

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[TarandeepKang]

@tomtomme this issue seems to be a replicate of #1660 and there is a lot of useful information in the thread. Especially this paper:

O’Brien, R. G., & Kaiser, M. K. (1985). MANOVA method for analyzing repeated measures designs: An extensive primer. Psychological Bulletin, 97(2), 316–333. https://doi.org/10.1037/0033-2909.97.2.316

[TarandeepKang]

I apologies for the typo @tomtomme. There seems to be a duplication of an issue. I have clarified now.

[tomtomme]

@samsuriwahid Do you agree, that this request is a duplicate of #1660 ? If so I would close this one, so that we can discuss over there.

[samsuriwahid]

Yes, but the #1660 there is no definite answer to the request. Currently there is no option to analyze a RM MANOVA, the option is only for RM ANOVA.Thank you.Sent from my iPhoneOn 6 Sep 2024, at 2:10 PM, Thomas Langkamp @.***> wrote: @samsuriwahid Do you agree, that this request is a duplicate of #1660 ? If so I would close this one, so that we can discuss over there.

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[tomtomme]

@samsuriwahid Thx for confirmation. I summed up all information from all issues now in #1660