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 (October 2011)Back to main SPSSX-L pageJoin or leave SPSSX-L (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:   Mon, 17 Oct 2011 14:01:04 -0500
Reply-To:   Evan Harrington <EHarrington@thechicagoschool.edu>
Sender:   "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:   Evan Harrington <EHarrington@thechicagoschool.edu>
Subject:   Re: A 4 point Likert scale
In-Reply-To:   <2c01e.252121ff.3bcdcec3@aol.com>
Content-Type:   multipart/alternative;

Not to belabor this too far, but in addition to the other points, depending on the question many survey respondents avoid the extremes in likert-type scales. Thus a 4 point scale effectively can turn into a 2 point scale.

Evan Harrington, Ph.D. Department of Forensic Psychology The Chicago School of Professional Psychology 325 N. Wells Street Chicago, IL 60654 ________________________________ From: SPSSX(r) Discussion [SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of Ralph Grubb [RalphG2703@aol.com] Sent: Monday, October 17, 2011 1:32 PM To: SPSSX-L@LISTSERV.UGA.EDU Subject: Re: A 4 point Likert scale

In addition to these obserbvations, there is no middle point. Ralph

In a message dated 10/17/2011 2:24:12 P.M. Eastern Daylight Time, Art@DrKendall.org writes: Why do you want to use only a 4 point Likert scale? _The more you restrict the variance of a variable the more you restrict its possible covariance._ As a rule of thumb you want items to approximate a continuous construct as much as possible given who your respondents are.

An actual Likert item has 5 points SD D ? A SA. Do you have a Disagree to Agree construct for your response scale?

If your scale has many items, the total (mean) score might not be too restricted. If you do not have scales, but are measuring a construct with a single variable the restriction of variance and therefore on covariance is even more problematical.

In short, a 4 point response scale is usually inadvisable. Why coarsen your measurement any more than is really necessary?

Art Kendall Social Research Consultants

On 10/17/2011 1:13 PM, Mohamed wrote:

Hi

I intend to use a 4 point Likert scale format in my survey.

I want to know if this puts limitations on the type of statistical analysis tests conducted?

Regards

Mohamed

-- View this message in context: http://spssx-discussion.1045642.n5.nabble.com/A-4-point-Likert-scale-tp4910676p4910676.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<mailto: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

===================== 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


[text/html]


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