[R-sig-ME] Power Analysis for Linear Mixed Model with Covariates

Ben Bolker bbolker at gmail.com
Fri Apr 18 06:27:03 CEST 2014

On 14-04-17 11:40 PM, Gerasimos Fergadiotis wrote:
> Hello,
> I was wondering if someone could point me to the right direction to
> conduct a power analysis for a design that includes (Levels): One
> Within Subjects Factor (Time(4)), Two Between Subject Factors
> (Treatment(2), Dosage(2)), one covariate (Language Skill at Baseline
> (4)). Random Effects for Intercept and Slope are typically seen in
> similar studies so I would like to include them as well. I spent some
> time with PASS 13 but it will not allow me to incorporate the
> covariate so I turned to R. Any ideas, thoughts, suggestions would be
> greatly appreciated.

Is http://rpubs.com/bbolker/11703  at all helpful?

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