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Repeated measures

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Repeated measures

Roberts, Alan C.

On behalf of a colleague:


Can anyone help me with a simple problem. I want to run a  2 x 2 x 2 repeated measures ANOVA model in SPSS  (1 within and 2 repeated). I used to run these long ago in SAS and have never done this in SPSS.  SO any help would be appreciated. I believe it’s rather simple (and simple syntax would be fine).

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Re: Repeated measures

Maguin, Eugene

Tell your colleague to look at page 858 in the 24 syntax reference. The example there is

 

GLM JANLO,JANHI,FEBLO,FEBHI,MARLO,MARHI BY SEX

/WSFACTOR MONTH 3 STIMULUS 2

/WSDESIGN MONTH, STIMULUS

/DESIGN SEX.

 

Gene Maguin

 

 

From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of Roberts, Alan C.
Sent: Thursday, February 09, 2017 12:55 PM
To: [hidden email]
Subject: Repeated measures

 

On behalf of a colleague:

 

Can anyone help me with a simple problem. I want to run a  2 x 2 x 2 repeated measures ANOVA model in SPSS  (1 within and 2 repeated). I used to run these long ago in SAS and have never done this in SPSS.  SO any help would be appreciated. I believe it’s rather simple (and simple syntax would be fine).

===================== 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
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Re: Repeated measures

Mike
In reply to this post by Roberts, Alan C.
The description you provide for the design to be analyzed
is ambiguous, especially the "1 within and 2 repeated".

One interpretation is that you have 3 independent variables,
let's call them A, B, C, and if combined factorially, the
SPSS syntax for such a design is the following:

** 3-Way Repeated Measures ANOVA..
GLM
A1B1C1,A1B1C2,
A1B2C1,A1B2C2,
A2B1C1,A1B1C2,
A2B2C1,A1B2B2
/wsfactors= A(2), B (2), C(2)
/METHOD = SSTYPE(3)  /* ASSUMING BALANCED DESIGN.
/CRITERIA = ALPHA(.05)
/print=descriptive,etasq
/WSDESIGN = A,B,C,AB,AC,BC,ABC.

However, an alternate interpretation is that you have
ONE independent variable (one two level within-subject
factor) and 2 dependent variables.  If A is the independent
variable and B C, I believe that the syntax becomes:

GLM
A1B1C1,A1B1C2,
A1B2C1,A1B2C2,
A2B1C1,A1B1C2,
A2B2C1,A1B2B2
/wsfactors= A(2)
/METHOD = SSTYPE(3)  .
/CRITERIA = ALPHA(.05)
/print=descriptive,etasq
/WSDESIGN = A.

I'm less sure about the correctness of the second GLM
syntax because I haven't analyzed these types of designs,
so, if anyone sees any errors/improvements, feel free to
comment.

NOTE: the print statement is not necessary but I usually
include it.

-Mike Palij
New York University
[hidden email]




----- Original Message -----
OnThursday, February 09, 2017 12:54 PM, Alan C Roberts, .

On behalf of a colleague:

Can anyone help me with a simple problem. I want to run
a  2 x 2 x 2 repeated measures ANOVA model in SPSS
(1 within and 2 repeated). I used to run these long ago in
SAS and have never done this in SPSS.  SO any help
would be appreciated. I believe it’s rather simple
(and simple syntax would be fine).

=====================
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
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Re: Repeated measures

Roberts, Alan C.
Thanks to everyone for your responses.
________________________________________
From: Mike Palij <[hidden email]>
Sent: Thursday, February 9, 2017 1:50 PM
To: Roberts, Alan C.; [hidden email]
Cc: Michael Palij
Subject: Re: Repeated measures

The description you provide for the design to be analyzed
is ambiguous, especially the "1 within and 2 repeated".

One interpretation is that you have 3 independent variables,
let's call them A, B, C, and if combined factorially, the
SPSS syntax for such a design is the following:

** 3-Way Repeated Measures ANOVA..
GLM
A1B1C1,A1B1C2,
A1B2C1,A1B2C2,
A2B1C1,A1B1C2,
A2B2C1,A1B2B2
/wsfactors= A(2), B (2), C(2)
/METHOD = SSTYPE(3)  /* ASSUMING BALANCED DESIGN.
/CRITERIA = ALPHA(.05)
/print=descriptive,etasq
/WSDESIGN = A,B,C,AB,AC,BC,ABC.

However, an alternate interpretation is that you have
ONE independent variable (one two level within-subject
factor) and 2 dependent variables.  If A is the independent
variable and B C, I believe that the syntax becomes:

GLM
A1B1C1,A1B1C2,
A1B2C1,A1B2C2,
A2B1C1,A1B1C2,
A2B2C1,A1B2B2
/wsfactors= A(2)
/METHOD = SSTYPE(3)  .
/CRITERIA = ALPHA(.05)
/print=descriptive,etasq
/WSDESIGN = A.

I'm less sure about the correctness of the second GLM
syntax because I haven't analyzed these types of designs,
so, if anyone sees any errors/improvements, feel free to
comment.

NOTE: the print statement is not necessary but I usually
include it.

-Mike Palij
New York University
[hidden email]




----- Original Message -----
OnThursday, February 09, 2017 12:54 PM, Alan C Roberts, .

On behalf of a colleague:

Can anyone help me with a simple problem. I want to run
a  2 x 2 x 2 repeated measures ANOVA model in SPSS
(1 within and 2 repeated). I used to run these long ago in
SAS and have never done this in SPSS.  SO any help
would be appreciated. I believe it’s rather simple
(and simple syntax would be fine).

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