Posted by
Maguin, Eugene on
Apr 23, 2019; 9:32pm
URL: http://spssx-discussion.165.s1.nabble.com/Linear-Mixed-Model-in-SPSS-Guidance-tp5737698p5737720.html
I agree. Multilevel is overkill but then there is this sentence in Martin's reply to me, " The editor at the International Journal of Eating Disorders stated that the journal does not approve of repeated measures ANOVA and requires a Hierarchical Linear Modeling or Mixed Linear Modeling or MANOVA (which is least preferred)."
Gene Maguin
-----Original Message-----
From: SPSSX(r) Discussion <
[hidden email]> On Behalf Of Bruce Weaver
Sent: Tuesday, April 23, 2019 5:23 PM
To:
[hidden email]
Subject: Re: Linear Mixed Model in SPSS Guidance
I agree with David. Multilevel modeling would seem like overkill with only 2 repeated measures. Here's a short BMJ Statistics Note you may find helpful, Martin.
https://www.bmj.com/content/323/7321/1123.fullCheers,
Bruce
David Greenberg wrote
> No need for multilevel modeling here. Your data do not violate the
> assumption of independence of observations. David Greenberg
>
> On Tue, Apr 23, 2019 at 9:00 AM Martin Sherman <
> MSherman@
> > wrote:
>>
>> Dear List: I am working on pretest/post-test study with two between
>> group factors, Treatment (Therapy A vs. Therapy B) and Age (younger vs.
>> Older) on various outcome variables (all continuous). I originally
>> considered doing a repeated measures analysis but after reading up
>> on the pros and cons of such an analysis I decided that a linear
>> mixed model would be more appropriate given the correlation between
>> the pre-test scores and the post-test scores. To further my
>> understanding I reviewed the text by Verbeke and Molenberghs (Linear
>> Mixed Models for Longitudinal Data). Getting through the text proved
>> to be a challenge (many many equations beyond my pay grade). So I
>> starting looking for some dummy downed explanations on how to set up
>> my statistical model. So far that have not generated any comparable
>> examples of my design (2 x 2 x (2)). I am hoping there are some
>> folks on the listserve that might be able to point me in some
>> directions that will prove to be beneficial. I have googled but I
>> have not found any helpful tutorials. Per chance if anyone has a good tutorial for my design I would appreciate hearing from you.
>> Thanks, martin sherman
>>
>> Martin F. Sherman, Ph.D.
>> Professor of Psychology
>> Loyola University Maryland
>> 4501 North Charles Street
>> 222 B Beatty Hall
>> Baltimore, MD 21210
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