LISTSERV at the University of Georgia
Menubar Imagemap
Home Browse Manage Request Manuals Register
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (September 2005)Back to main SPSSX-L pageJoin or leave SPSSX-L (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Fri, 30 Sep 2005 12:45:01 -0300
Reply-To:     Hector Maletta <hmaletta@fibertel.com.ar>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Hector Maletta <hmaletta@fibertel.com.ar>
Subject:      Re: proportions and ANOVA
Comments: To: "William B. Ware" <wbware@email.unc.edu>
In-Reply-To:  <Pine.A41.4.44+UNC.0509301059310.16762-100000@login9.isis.unc.edu>
Content-Type: text/plain; charset="us-ascii"

I think ANOVA is good enough in handling binary DVs. However, it is best that the split is "natural" rather than artificial. By an artificial split I mean things like "Income below $50,000" or "Height below 5'10" because a slight displacement of the threshold may cause sometimes big differences in the output (especially if many people are in the vicinity of the threshold). Hector

> -----Original Message----- > From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] > On Behalf Of William B. Ware > Sent: Friday, September 30, 2005 12:02 PM > To: SPSSX-L@LISTSERV.UGA.EDU > Subject: Re: proportions and ANOVA > > 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/ > > > > __________ Informacisn de NOD32 1.1237 (20050929) __________ > > Este mensaje ha sido analizado con NOD32 Antivirus System > http://www.nod32.com > >


Back to: Top of message | Previous page | Main SPSSX-L page