Date:         Fri, 11 Nov 2005 14:16:22 -0600
Reply-To:     "Swank, Paul R" <Paul.R.Swank@uth.tmc.edu>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         "Swank, Paul R" <Paul.R.Swank@uth.tmc.edu>
Subject:      Re: t-test with mean, sd, and n
Comments: To: Matthew Pirritano <mpirrita@unm.edu>
Content-Type: text/plain; charset="us-ascii"

Yes, it is a paired sample test and so you can not determine the t test
without knowing the correlation between the two assessments, unless, of
course, you have the standard deviation of the difference.


Paul R. Swank, Ph.D.
Professor, Developmental Pediatrics
Director of Research, Center for Improving the Readiness of Children for
Learning and Education (C.I.R.C.L.E.)
Medical School
UT Health Science Center at Houston

-----Original Message-----
From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
Matthew Pirritano
Sent: Friday, November 11, 2005 2:03 PM
To: SPSSX-L@LISTSERV.UGA.EDU
Subject: t-test with mean, sd, and n

I'd like to reanalyze some data form an article.  They're looking to see
if variations in differences in math performance between 2 groups is a
function of math problem type (if the language in the problem is simple
or complex as determined by linguistics experts).  All I have is means,
SD, and N.

Is there a way to do this?  Is it some sort of paired samples t-test?

thanks
Matt

Matthew Pirritano, Ph.D.
National Science Foundation Post-Doctoral Fellow College of Education
Department of Individual, Family & Community Education
MSC05 3040
1 University of New Mexico
Albuquerque, NM 87131-0001
Telephone (505)277-7115
FAX (505)277-8361