Re: By trial, or by subject?

2001-01-16 Thread Jim Kroger
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] (Donald Burrill) wrote: > You have not stated how many subjects (Ss) receive each > drug/dose combination. If all 20 Ss receive all 4 combinations, as > implied by your assertion of 80 data points (below), then the design is >

A followup...

2001-01-14 Thread Jim Kroger
May I ask a followup? I think this may get better at the heart of my query. Suppose that instead of temperature, I use a measure of vision: if they correctly identify a letter a distance away they get a "1," otherwise a "0." I wish to use accuracy as the DV. I can calculate the percent of trials i

By trial, or by subject?

2001-01-14 Thread Jim Kroger
Hello, I've received some expert help here on a couple previous occasions (thanks). I have an issue bothering me, which I'd like to present to you. I'm doing a two-way, 2X2 ANOVA. Suppose I have 20 subjects, and each has 25 observations of the following types: drug1-doseA (25 for each subject) d