Date: Thu, 22 Jul 2010 16:14:03 -0400
Reply-To: Art@DrKendall.org
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: Art Kendall <Art@DrKendall.org>
Organization: Social Research Consultants
Subject: Re: Fw: R-matrix
In-Reply-To: <968654.37237.qm@web31008.mail.mud.yahoo.com>
Content-type: text/html; charset=ISO-8859-1
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
What is the range of legitimate values for the variables? Are there
likely to be many cases that have a particular pair of values?<br>
For example, if you have items that have a 1 to 5 response scale,
the are only 25 possible locations in a scatterplot that cases can
be located at. Also with 25 possible locations it is possible that
some of the 25 possible locations have no cases.<br>
<br>
Please describe the variables more fully.<br>
<br>
Also some of the scatterplot graphics allow you to "Jitter". <br>
<help> <search> "jitter"<br>
<br>
Art Kendall<br>
Social Research Consultants<br>
<br>
<br>
<br>
On 7/21/2010 10:06 PM, jacqueline london wrote:
<blockquote cite="mid:968654.37237.qm@web31008.mail.mud.yahoo.com"
type="cite">
<style type="text/css"><!-- DIV {margin:0px;} --></style>
<div style="font-family: times new roman,new york,times,serif;
font-size: 12pt;">
<div><br>
</div>
<div style="font-family: times new roman,new york,times,serif;
font-size: 12pt;"><br>
<div style="font-family: times new roman,new york,times,serif;
font-size: 12pt;"><font size="2" face="Tahoma">----- <br>
<b><span style="font-weight: bold;">Subject:</span></b>
R-matrix<br>
</font><br>
<div style="font-family: times new roman,new
york,times,serif; font-size: 12pt;">
<div>Hi all.<br>
I would like to do factor analysis of a questionnaire
that I have. I want to plot a scatterplot graph first to
see how things are, before I do the matrix. There are 30
items in the questionnaire and I have 155 subjects.
However I tried to plot a simple scatterplot using only
the ist and 2nd items. I got a graph with only about 22
point with no clusters or even 2 point close. I do not
know what to do. Shouldn't I see the correlation between
item 1 and item 2 for all 155 participants? Would
someone please help?<br>
</div>
</div>
<br>
</div>
</div>
</div>
<br>
</blockquote>
</body>
</html>
=====================
To manage your subscription to SPSSX-L, send a message to
LISTSERV@LISTSERV.UGA.EDU (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD
| 
