Logistic regression is used to predict for dichotomous categorical outcomes. http://www.scalelive.com/logistic-regression.html

Statistical Power and Multivariate Designs

Multivariate designs decrease statistical power and increase the needed sample size.

Statistical Power and Within Subjects Designs

Within-subjects designs increase statistical power and decrease the needed sample size.

Statistical Power and Between Subjects Designs

Between-subjects designs decrease statistical power and increase the needed sample size.

Statistical Power and Research Designs

Research design greatly impacts statistical power in applied research and statistics.

Statistical Power and Continuous Outcomes

Continuous outcomes increase statistical power and decrease the needed sample size.

Statistical Power and Ordinal Outcomes

Ordinal outcomes decrease statistical power and increase the needed sample size.