Daniel Spitzenstätter

4 Questions 7 Answers 0 Followers

Questions related from Daniel Spitzenstätter

How to Compute Post-Hoc Power for Repeated Measures with Optimal Design Software?

Dear all, I am currently trying to figure out how I can use the Optimal Design Software (OD, link below) to do some kind of post-hoc power analysis. I am aware of the problems of post-hoc power,...

01 April 2020 6,491 3 View

How to plot a 3-way interaction (linear mixed model) in R?

Hi everyone, I am running a linear mixed model in R, using the lme-function. The following variables are used: Y ... Outcome (continuous) IV1 ... Time (categorical: 0, 1, 2, 3) IV2 ... Group...

14 November 2019 3,969 7 View

Repeated Measures MANCOVA - Which multivariate output table should be interpreted?

Dear all, I am conducting a MANCOVA with a time factor (4 points of measurement), a group factor (2 groups), 4 covariates and 2 DVs. SPSS gives me first a table for "Multivariate Tests", where...

06 June 2019 8,628 3 View

Power-Analysis for Mixed-Design ANCOVA?

Hello everyone! In a recent research project, I computed a Mixed-Design ANCOVA, i.e., a repeated measures analysis with one within-subjects factor (4 points of measurement) + one between-subjects...

22 March 2019 7,438 7 View