Date:         Thu, 24 Jun 1999 16:04:00 +0200
Reply-To:     Nathalie Holvoet <nathol@RUCA.UA.AC.BE>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Nathalie Holvoet <nathol@RUCA.UA.AC.BE>
Subject:      some questions
Content-Type: text/plain; charset="us-ascii"

Dear listmembers,

I have a number of questions related to the statistics underlying SPSS

1. if conditions for Chi-square test and Fisher Exact are not satisfied
(e.g. if there are empty cells or if the frequency of some cells is too
low) what are then other possibilities to test the existence of
statistically significant differences between groups on a qualitative
variable?
2. if you have a linear dependent variable ranging between 0-100, is it
possible to use linear regression or should you use another method, if yes,
which one? What are the problems if you use linear regression?
3. it seems that the Durbin-Watson test for autocorrelation may only be
used if you have observations which are strictly ranked (e.g. time-series).
If observations are not strictly ranked what is the alternative test for
autocorrelation?
4.  what is the distribution underlying the loglinear logit method and the
logistic regression method? how can you test if this distribution may be
applied on your data?

Thanks,
Nathalie Holvoet
Institute for Development Policy and Management
RUCA
Middelheimlaan 1
2020 Antwerp