[R] Testing relationships in logistic regression

2012-06-08 Thread Peter Milne
godds of Y for 1z significantly different from the change in logodds of Y for 0z? I have had no luck tracking this down using Google. Many thanks to those who take up my question! Peter Milne University of Ottawa Department of Linguistics [[alternative HTML version deleted]] __

[R] Testing relationships in logistic regression

2012-06-08 Thread Peter Milne
I am interested in knowing whether and how I can test the significance of the relationship between my continuous predictor variable (a covariate) and my binary response variable according to two different groups, my categorical predictor variable, in a logistic regression model (glm). Specifically,

[R] Help interpreting ANCOVA results

2011-06-21 Thread Peter Milne
Please help me interpret the following results. The full model (Schwa~Dialect*Prediction*Reduction) was reduced via both update() and step(). The minimal adequate model is: ancova<-lm(Schwa~Dialect+Prediction+Reduction+Dialect:Prediction) Schwa is response variable Dialect is factor, two levels ("