Date:         Wed, 12 Jan 2005 08:44:51 -0000
Reply-To:     David Lindsay <spss2002_4@sdresearch.com>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         David Lindsay <spss2002_4@sdresearch.com>
Subject:      Re: Order effects
Comments: To: paulandpen@optusnet.com.au
In-Reply-To:  <200501120828.j0C8SPad019987@mail08.syd.optusnet.com.au>
Content-type: text/plain; charset=US-ASCII

200 respondents 24 different orders.

Regards,

On 12 Jan 2005 at 19:28, paulandpen@optusnet.com.au wrote:

> David
>
> By order effects in this case, I am assuming you mean that depending on
> the order of the presentation, there is likely to be some sort of
> confound across the remaining time periods, in other words, the
> presentation of stimulus A at point 1 is going to lead to differential
> responses on the likert scale scores at time two compared with the
> presentation of a different stimulus (i.e. stimuls B) at point 1 and how
> this impacts on time 2 scores.  How many combinations do you have and
> what is your sample size?
>
> Regards Paul
>
>
>
> > David Lindsay <spss2002_4@sdresearch.com> wrote:
> >
> > Hi,
> >
> > I have given respondents a number of products to eat, each
> > respondent has been the products in a different order.
> > Their product acceptance has been measured on a number of
> > likert scales.
> >
> > I want to make sure that there is no order effect in the
> > taste testing. I would be grateful if anyone has any ideas
> >
> > Thanks.