Date:         Fri, 30 Sep 2005 11:01:30 -0400
Reply-To:     "William B. Ware" <wbware@email.unc.edu>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         "William B. Ware" <wbware@email.unc.edu>
Subject:      Re: proportions and ANOVA
Comments: To: "Zdaniuk, Bozena" <BZdaniuk@ucsur.pitt.edu>
In-Reply-To:  <0741DA624F60AE43A659DD2264AA4A65FDA831@ucsur-8.ucsur.nt.pitt.edu>
Content-Type: TEXT/PLAIN; charset=US-ASCII

Bozena,

I believe that I recall an article by Lunney et al. that appeared in the
Journal of Educational Measurement around 1969 or 1970.  It examined this
question, and as I recall, the findings suggested that ANOVA was
appropriate for dichotomous data, as long as the "splits" were not outside
80/20...

wbw

__________________________________________________________________________
William B. Ware, Professor                         Educational Psychology,
CB# 3500                                       Measurement, and Evaluation
University of North Carolina                         PHONE  (919)-962-7848
Chapel Hill, NC      27599-3500                      FAX:   (919)-962-1533
Office:  118 Peabody Hall                            EMAIL: wbware@unc.edu
Adjunct Professor                                    School of Social Work
__________________________________________________________________________


On Fri, 30 Sep 2005, Zdaniuk, Bozena wrote:

> Hello, I would like to test a yes/no question in an ANOVA design (2 btw
> subject IVs and one within subject IV). Can ANOVA handle proportions
> even those the assumptions are likely to not hold?
> Thanks.
> Bozena
>
> Bozena Zdaniuk, Ph.D.
>
> University of Pittsburgh
>
> UCSUR, 6th Fl.
>
> 121 University Place
>
> Pittsburgh, PA 15260
>
> Ph.: 412-624-5736
>
> Fax: 412-624-4810
>
> email: bozena@pitt.edu
>
>
> -----Original Message-----
> From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
> Spousta Jan
> Sent: Friday, September 30, 2005 4:58 AM
> To: SPSSX-L@LISTSERV.UGA.EDU
> Subject: Re: String Transformation
>
> Hi,
>
> Just a remark: the second line of the code can be even simpler, I think:
>
> string tab (a1) .
> compute tab=string(9,pib1).
> etc.
>
> I am still missing \t and \n and similar abbreviations in SPSS...
>
> Greetings
>
> Jan
>
> -----Original Message-----
> From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
> Simon Freidin
> Sent: Friday, September 30, 2005 4:16 AM
> To: SPSSX-L@LISTSERV.UGA.EDU
> Subject: Re: String Transformation
>
> here's another way
>
> string tab (a1) .
> compute tab=string(number('9',n2),pib1).
> compute
> x=concat("if",tab,"y=",tab,"""",ltrim(rtrim(y)),"""",tab,"code=",tab,"."
> ).
>
>
> At 02:39 AM 30/09/2005, Arthur Aguirre wrote:
> >Hi,
> >
> >I have the following compute function:
> >
> >comp x=concat("if"," ","y=","""",ltrim(rtrim(y)),"""","","code=","
> >",".").
> >
> >It would be useful to insert tab spaces verses singles spaces (" ").
> >Anyone know if this is possible?
> >
> >Thanks.
> >Arthur
> >
> >
> >
> >
> >______________________________________________________________________
> >This email has been scanned by the MessageLabs Email Security System.
> >For more information please visit http://www.messagelabs.com/email
> >______________________________________________________________________
>
>
> Research Database Manager and Analyst
> Melbourne Institute of Applied Economic and Social Research The
> University of Melbourne Melbourne VIC 3010 Australia New Tel: (03) 8344
> 2085 New Fax: (03) 8344 2111 http://www.melbourneinstitute.com/hilda/
>