s-function in SPSS curve estimation

2001-12-20 Thread Johannes Hartig
Hi all, Does anyone know the original applications or the "meaning" of the "S"-function in SPSS? I know the function itself: Y = e**(b0 + (b1/t)) or ln(Y) = b0 + (b1/t) and I know how the curve looks like, but I am wondering in which fields of research this function is typically used and which emp

Re: comparing factor patterns ?

2001-08-28 Thread Johannes Hartig
Hi, you can calculate Tucker's congruence coefficient*. I guess you'll have to do this partly by hand, I don't know an SPSS procedure for this. Anyway, it shouldn't be that hard, copying your facor loadings from the output table to a new file.. HTH, Johannes Hartig * cf.

Re: Raschmodelling

2001-01-16 Thread Johannes Hartig
Try Winmira, you can obtain info & a free trial version under http://winmira.von-davier.de/index.shtml HTH, Johannes > I`d like to obtain information about computersoftware (free, trail or > commercial) to calculate rasch modell. > > Stefan > =

Re: Software for experimental designs

2000-11-30 Thread Johannes Hartig
Inquisit: www.millisecond.com Superlab: http://www.superlab.com/ Or go for E-Prime, most expensive butworth it's price (in my opinion): http://www.pstnet.com/ HTH, Johannes Hartig = Instructions for joining and leaving this list and rem

Re: testing skewness unequal 0 (complete)

2000-09-19 Thread Johannes Hartig
Chuck Cleland wrote: > Johannes Hartig wrote: > > (1) Where does the standard error I get from SPSS come > > from? I think it should be a simple formula, but I don't find > > it... > > An approximation is sqrt(6/n) > > From SPSS algorithms, SE of Skewness

testing skewness unequal 0 (complete)

2000-09-18 Thread Johannes Hartig
ormal distribution.". Why this? Is there any standard literature on this problem? Thanks a lot for any adivdce, Johannes Hartig = Instructions for joining and leaving this list and remarks about the problem of INAPPROPR

testing skewness unequal 0

2000-09-18 Thread Johannes Hartig
Hi all, I have a simple question - at least I guess it's simple, but right now I'm not finding an satisfying answer. I have an sample distribution (N = 200) with a mean of 36,7, a Stddev of 6,4 and a skewness of 1,4. What I wnat to know is if the skewness differs significantly from zero. SPSS give

Re: On-line survey

2000-07-12 Thread Johannes Hartig
g data online is "easy" or "bad" per se, and IMHO online samples are more heterogenous than student samples and therefore offering a chance to get more generalizable results in many fields of research than the often used student samples. Johannes Hartig ===

Re: On-line survey

2000-07-12 Thread Johannes Hartig
"Robert J. MacG. Dawson" wrote: > > > Internet users are not a random sample of any other population. > Internet users who browse to a given site are not a random sample of > internet users. And internet users who bother to fill out a form are not > a random sample of anything. Your st

Re: On-line survey

2000-07-12 Thread Johannes Hartig
ed with CGI2SPSS once and was very satisfied. If you set it up correctly, you get your survey data on a silver platter :-) HTH, Johannes Hartig = Instructions for joining and leaving this list and remarks about the pr

Re: SPSS GLM - between * within factor interactions

2000-05-11 Thread Johannes Hartig
"Donald F. Burrill" schrieb: > On Wed, 10 May 2000, Johannes Hartig wrote: > > > I guess I have to accept there is no way to customize within * between > > interactions in GLM. Thanks for the tip using regression, but I think > > in future I'd rath

Re: SPSS GLM - between * within factor interactions

2000-05-10 Thread Johannes Hartig
I guess I have to accept there is no way to customize within * between interactions in GLM. Thanks for the tip using regression, but I think in future I'd rather try to give a meaning to the default interactions ;-) This leads me back to the second part of my original question: Is there some good

Re: SPSS GLM - between * within factor interactions

2000-05-09 Thread Johannes Hartig
IX or /KMATRIX? I am checking already the syntax guide, but no success so far :( Thanks for any advice, Johannes Bruce Weaver schrieb: > On Mon, 8 May 2000, Johannes Hartig wrote: > > > > Click on the Model box in the pull-down menu. The default model > > > is the full-factori

SPSS GLM - between * within factor interactions

2000-05-08 Thread Johannes Hartig
former versions did not test these interactions as default), is there a good statistical reason to test all possible within*between-interactions? Any help is appreciated, Johannes Hartig === This list is open to everyone.

Re: linear model or interactive model?

2000-04-13 Thread Johannes Hartig
e and technique of the aggregation of values of different persons. What do you want do do? Predict Y with X1 and X2? Best wishes, Johannes Hartig Wen-Feng Hsiao schrieb: > Dear all, > > Suppose I have an aggregation model which is in the following form: > Y = X11 * X12 + X21 * X22. >

Re: Code for web-based questionnaires?

2000-01-17 Thread Johannes Hartig
data format I can recommend CGI2SPSS, a Script that saves your questionnaire data in SPSS f= ormat. It is available under http://www.uni-jena.de/svw/metheval/Projekte/Evaluation/CGI2SPSS/start.ht= ml and is free for non-commercial use. HTH, Johannes Hartig