Re: Within Subjects Variance

2000-11-06 Thread mot4201
That's because I could not get more than 15 Police Officers, while the other group represents students (much easier to get on campus) > might i ask why one group has n=160 and the other only n=15? > > At 05:44 PM 11/6/00 +, [EMAIL PROTECTED] wrote: > >Hi all, > > > >I have a little problem o

Percentile Calculation

2000-11-06 Thread Harper Shull
Does anyone have an algorithm (computer code) for calculating percentiles. There is a formula for doing such in Excel, so it must be possible to program. A friend is trying to write a macro to do such in another PC based software(Filemaker Pro). Thanks.

Software for pairing subjects

2000-11-06 Thread Jean-Pierre Guay
Would any of you know names of statistical softwares for pairing subjects according to several variables? (In order to make them comparable?) Thanks, Jean-Pierre Jean-Pierre Guay, M.Sc. Centre de Recherche Philippe Pinel Institut Philippe Pinel de Montréal 10 905 boul. Henri-Bourassa est, Mont

Re: Within Subjects Variance

2000-11-06 Thread dennis roberts
might i ask why one group has n=160 and the other only n=15? At 05:44 PM 11/6/00 +, [EMAIL PROTECTED] wrote: >Hi all, > >I have a little problem on how to handle the following: > == dennis roberts, penn state university educational p

Re: ANOVA with dichotomous dependent variable

2000-11-06 Thread David C. Howell
Joseph McDonnell made an interesting point when he slightly modified the question.As I understand what he is asking, the question is "how far wrong do we go when we treat the dichotomous dependent variable as if it were continuous. Cox and Wemuth (American Statistician, 1992) approached a similar

Re: ANOVA with dichotomous dependent variable

2000-11-06 Thread Rich Ulrich
On Mon, 06 Nov 2000 18:36:16 +0100, Joseph McDonnell <[EMAIL PROTECTED]> wrote: > Gentlemen, > > I agree with both of you. Several correspondents had already pointed out that a > logistic regression approach would be more appropriate in this situation. > However, I was trying to steer the discu

Within Subjects Variance

2000-11-06 Thread mot4201
Hi all, I have a little problem on how to handle the following: I have 2 groups of people with inequal size. One group of 160 people and the other of 15 people! Now each person of the 2 groups had to hold a square flat object 5 times and we collected the x and y cartesian coordinates of all fing

Re: ANOVA with dichotomous dependent variable

2000-11-06 Thread Joseph McDonnell
Gentlemen, I agree with both of you. Several correspondents had already pointed out that a logistic regression approach would be more appropriate in this situation. However, I was trying to steer the discussion in a slightly different direction, which I suspect may be the subject of Gerhard's int

overtime games

2000-11-06 Thread dennis roberts
in my stat class today, we were talking a bit about penn state's bad luck (of course, good luck for iowa!)in the second overtime last saturday ... here is my take on overtimes I DON'T LIKE THEM ... here is why football by definition is a game that is 60 minutes d

Re: ANOVA with dichotomous dependent variable

2000-11-06 Thread Jerry Dallal
Herman Rubin wrote: > > In article <[EMAIL PROTECTED]>, > Joseph McDonnell <[EMAIL PROTECTED]> wrote: > >I may be wrong, but I thought that Gerhard was asking something like "If I > >perform a linear regression but with a dichotomous dependent variable, do > >I get 'garbage' results?" > > The r

Error in polls, Part III

2000-11-06 Thread Gene Gallagher
The latest polls are out. The New York Times gets an A for describing the precision and accuracy of their poll. Gallup gets a C- or D in my book. The New York Times today: http://www.nytimes.com/2000/11/06/politics/06METH.html In theory, in 19 cases out of 20 the results based on such samples

Re: ANOVA with dichotomous dependent variable

2000-11-06 Thread Herman Rubin
In article <[EMAIL PROTECTED]>, Joseph McDonnell <[EMAIL PROTECTED]> wrote: >I may be wrong, but I thought that Gerhard was asking something like "If I >perform a linear regression but with a dichotomous dependent variable, do >I get 'garbage' results?" The results must be at least partly garbag

Re: ANOVA with dichotomous dependent variable

2000-11-06 Thread Joseph McDonnell
I may be wrong, but I thought that Gerhard was asking something like "If I perform a linear regression but with a dichotomous dependent variable, do I get 'garbage' results?" Joseph Gene Gallagher wrote: > In article <[EMAIL PROTECTED]>, > Gerhard Luecke <[EMAIL PROTECTED]> wrote: > > Can any