I was hoping I could get some advice.
I need to run several power analyses for a grant application. Having no prior experience of this statistical technique I wondered whether someone could give me a recommendation for the best (preferably free) software to use.
I will have to base the power analyses on Cohen’s estimations as I have no pilot data and, based on my research questions, no literature exists that gives the relevant information needed for the analyses. The types of statistical tests I will be employing are ANOVA, ANCOVA, Linea and Logistic Regression. If anyone could point me to some good online tutorials/presentations/videos demonstrating how to run power analysis for these tests then I would be very grateful. Anything that explains power analysis in simplistic terms would be especially appreciated!
Many thanks,
Kirsten
|