|Date: ||Thu, 17 Nov 2011 16:47:28 -0800|
|Reply-To: ||mmiesner <firstname.lastname@example.org>|
|Sender: ||"SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>|
|From: ||mmiesner <email@example.com>|
|Subject: ||question about measure creation statistics|
|Content-Type: ||text/plain; charset=us-ascii|
I'm creating a measure that currently has 20 items. 18 of these items are
multiple choice, 4 possible answer questions. 2 of the items have 7 possible
answers. All of the items are covering the same broad area (knowledge of
psychological disorder criteria).
I ran cronbach's alpha and the score was .78.
I talked to my advisor, who said this was incorrect and I should have run
KR-20. I did some reading, and two things appear to be true.
First, that in fact, I should be using KR-21 since the answers are not
Second, that there is no way to do this in SPSS.
Would LOVE some guidance.
View this message in context: http://spssx-discussion.1045642.n5.nabble.com/question-about-measure-creation-statistics-tp5002888p5002888.html
Sent from the SPSSX Discussion mailing list archive at Nabble.com.
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
For a list of commands to manage subscriptions, send the command