Date: Wed, 12 Jan 2005 08:44:51 -0000
Reply-To: David Lindsay <firstname.lastname@example.org>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: David Lindsay <email@example.com>
Subject: Re: Order effects
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200 respondents 24 different orders.
On 12 Jan 2005 at 19:28, firstname.lastname@example.org wrote:
> 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 <email@example.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.