Rachid Khelifi

4 Questions 13 Answers 0 Followers

Questions related from Rachid Khelifi

Using easypower and Sample size calculations for factorial ANOVAs?

I'm trying to calculate Sample size for a three-way interaction using easypower. In order to do that I use the example provided in RStudio : (Exercise 8.14, p.397 from Cohen (1988)) and try to...

21 September 2021 3,289 5 View

What do we mean by "centered fixed model and factors levels coded" in linear mixed model?

In many articles (psycholinguistic), I see that linear mixed models used were centered and factor levels were coded (example , two factor levels were coded as -.5 and .5. In those research, there...

06 April 2020 535 5 View

A recurrent question about interaction value in linear mixed model. How to get it with a t value?

I apologize for asking again the same question, but il really don't have a satisfactory response. In different article, I find more and more (focused on eye movement in reading) that interaction...

06 June 2019 3,424 8 View

How to get and install "sjstats::p_value()" function in R?

I have read in a forum that "sjstats::p_value()" fonction can be used to get p-values from many different models, including (generalized) mixed models. Unfortunatly, i'm unable to find the...

02 November 2018 8,304 9 View