Interaction in Amos

[Colleen Kirk]

Can someone kindly tell me how to create an interaction in Amos?  Do you need to multiply each scale item (observed variable) individually?  So if a 3-item factor interacts with a 4-item factor, the resulting interaction  would have 12 items (3x4) feeding into it?  Is this correct?  Is there an easier way?

Thank you very much.

Colleen P. Kirk

[David Marso]

I don't know per se (It has been awhile since I did much with SEM).
However, straight products of raw variables will most definitely result in serious multicollinearity.
I did a quick Google "SEM interaction" and found a number of results including:
http://findarticles.com/p/articles/mi_qa3717/is_200004/ai_n8899643/?tag=content;col1
This question might be better answered in a forum dedicated to SEM.
http://www2.gsu.edu/~mkteer/semnet.html
HTH, David

[Garry Gelade]

Colleen

I suggest you look at this:

http://www.unige.ch/fapse/mad/fuerst/continuous-variable-interaction.pdf

Interaction between latent variables is handled automatically in MPLus.  You
could look at Bengt Muthen's work in this area, I'm sorry I don't have a
reference to hand.

Garry Gelade
Business Analytic Ltd.

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Colleen Kirk
Sent: 21 March 2011 12:54
To: [hidden email]
Subject: Interaction in Amos

Can someone kindly tell me how to create an interaction in Amos?  Do you
need
to multiply each scale item (observed variable) individually?  So if a
3-item factor interacts with a 4-item factor, the resulting interaction
would have 12 items (3x4) feeding into it?  Is this correct?  Is there an
easier way?

Thank you very much.

Colleen P. Kirk



--
View this message in context:
http://spssx-discussion.1045642.n5.nabble.com/Interaction-in-Amos-tp4226778p
4226778.html
Sent from the SPSSX Discussion mailing list archive at Nabble.com.

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (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
[hidden email] (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