Hi all, I've had troubles calculating adjusted means by hand. My model: y = f(X1,X2) where X1 and X2 are dummy variables. If I ran a linear model with an interaction term, how do I calculate the adjusted means by hand? Should I plug in the "mean" of the dummy variable, which would be a proportion, in order to get the overall mean accross groups? That is, if X1 is experience (1 = yes) and X2 is group belonging (X1 = 0 control), how do I get the adjusted mean for people whose experience is 1, independently of being program or control?
Thanks!! MCP. . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
