Camille Perault

3 Questions 4 Answers 0 Followers

Questions related from Camille Perault

Can i conduct a comportmental study with before/after design without control group ?

Hi! I would like to evaluate the causal effect of a treatment, that i will indirectly measure through psychological questionnaires. Also, i have no control group (this is a natural experiment). I...

24 April 2023 2,714 2 View

How to run multiple linear regression with robust standard errors clustered on participant and item in R?

Hi! I am trying to run the following multiple linear regression in R: r ~ condition (1 = Control, 2 = Active Control, 3 = Treatment, 4 = Importance Treatment) + type (0 = false, 1 = true) + age...

13 May 2022 726 3 View

Calculating effect size based on regression table (with very low R-squared)?

Hi everyone, I am trying to calculate the effect size of a study I am aiming to replicate (to run a G power analysis and find my required sample size). The thing is the R-squared mentioned in the...

21 February 2022 3,187 5 View