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How to do a mediation analysis in R...with visuals!

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Link to the added variable plot video:
• Controlling/Conditioni...
Learning Objectives:
Conditioning versus mediation
Three (two?) step process of mediation
How to do traditional mediation analysis in R
How flexplot visualizes mediation
How to visualize with flexplot
This video relies on flexplot, which can be downloaded from R using the following commands:
install.packages("devtools")
devtools::install_github('dustinfife/flexplot', ref="development")
And here's a paper I wrote about my eight step approach to data analysis: psyarxiv.com/r8g7c/
Undergraduate curriculum playlist (GLM-based approach): ru-vid.com?list...
Graduate curriculum playlist (also GLM-based approach): ru-vid.com?list...
Exonerating EDA paper: psyarxiv.com/5vfq6/
Download JASP (and visual modeling module): www.jasp-stat.org

Опубликовано:

14 сен 2021

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Комментарии : 38

@nickvarney8148 2 года назад

This video is incredible. You described this better in 11 minutes than my professor did in two hours. Thank you!

@ericomarcon Год назад

This video is pure gold. I would just recommend some assumptions' checking at the beginning of the analysis. Otherwise, 10/10

@allenshaw9996 Год назад

The music (and your energy) makes it so much better! 🤣

@DrAnaWeidenauer Год назад

you are not only a good teacher, you are hilarious

@mikhaeldito 2 года назад

Bootstrap video, please! And then proceed to parametric and semi-parametric bootstrapping for mixed-effects models :D

@stephendye2924 2 года назад

Agreed, that would be useful

@capricious8929 3 месяца назад

EXTREMELY HELPFUL! THANK YOU!

@HarmonicaTool 2 года назад

What about covariates / control variables? are they just added in both models? Do we need to normalize predictors? U love how fast and on the point this lesson is but a hint to limitations / precautions would improve even more. That being said: Thanks so much!

@KN-tx7sd 11 месяцев назад

as usual excellent, Bootstrap video, please! Also are the variables are all continuous or is any of them categorical. Can mediation be done when few variables are categorical in nature.

@janja7471 2 года назад

Great vid! And yes, pls do Bootstrap!

@symeonmandrinos9528 5 месяцев назад

Thank you for your effort

@nl7247 Год назад

Thank you very much ❤

@caviper1 2 года назад

Gracias man.

@carolinaochoa3309 2 года назад

Hi, thanks for the great work! I work with time to event data for the outcome. My exposure and mediatior as continuous variables. I used survreg function, which is suppoted by the mediation package. I'd like to represent my mediation model in a plot, like the mediate_plot you just showed. Do you have already a code for plotting mediation on this kind of outcome? Thanks!

@ito945 2 года назад

Thank you very much for your videos. I would like to do the mediation analysis using multiple imputation for missing value using the "amelidiate" function in "mediation" package. If you know how to use this function , please give me the information.

@davidwang8971 11 месяцев назад

Hi, thank you for this amazing video!! I have one question, is it possible to do medaition analysis with "multiple mediators" (assuming they are uncorrelated with each other) in this package "mediation"? Many thanks.

@noemimicheli6803 2 года назад

What if the mediator is a categorical binary variable? Thank your for your videos!!

@edafade 2 года назад

Is it possible for flexplot to handle moderated mediation analysis with multiple predictor variables? I don't think it can visualize this, as we don't want to control for variables necessarily after the pipe.

@kriegsmandot1 Год назад

Thanks so much, this is great! Why did you include exercise in the plot? Seems like that's a question unrelated to our variables of interest?

@IsobelFrench 6 дней назад

Where can I get the dataset used in this video please? Thanks!

@jesusgarza-noriega1394 Год назад

I fucking love this guy

@qizhengli7952 2 года назад

what could I do when r reports the error "mediator model is not yet implemented", THANK YOU!!!

@capricious8929 3 месяца назад

What if I have two independent sample groups and two mediators, and 1 dependent variable I want to test out?

@nicujo 3 года назад

Hello from Denmark! Thank you very much for your videos, I found them VERY instructive. I am studying the univariate and multivariate playlists but I cannot install the flexplot package. Is it still available? Thanks for your effort :)

@QuantPsych 2 года назад

It is: devtools::install_github("dustinfife/flexplot")

@caviper1 Год назад

Q: Can "mediate_plot" function be used with a binary response variable? If so, how?

@erickcampos50 2 года назад

Great video! It's possible to do mediation using Jamovi and GLM? And yes, I would like to see a video about bootstrap

@QuantPsych 2 года назад

Not at the moment.

@nadjaburgel9931 Год назад

How do I do a mediation when my mediator is a latent variable consisting of four measured variables?

@rogerakanji5154 11 месяцев назад

Hi I am currently having a go at mediation path analysis model but I am stuck in the "error sem" My specify model is shown below: specmod

@AmanzholBekmagambetov 2 года назад

On 5:30, Aren't we supposed to establish first the relationship between Depression and Quarantine as a base model and only after that test full model?

@QuantPsych 2 года назад

Yes, that is customary.