Minimum Number of Groups for Nested GLM/GZLM?

[Justin Meyer-3]

Hi SPSS list,

 

I have been using SPSS 17's GLM Univariate and Generalized Linear Models
to analyze student level data where students are nested within teachers.
I am concerned that there may be some minimum number of teachers
necessary for this type of analysis. Is there a minimum number of groups
(teachers) when nesting data in this way? Are there any articles that
discuss this? I searched the internet and journals, but I wasn't able to
come up with anything that seemed relevant.

 

Thanks,

____________________________________

Justin Meyer

Rowland Reading Foundation

____________________________________

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[Arthur Burke]

Justin ...  See Gelman and Hill, pp 275-276 and 278.

Art
__________________________________________
Art Burke
Northwest Regional Educational Laboratory
101 SW Main St, Suite 500
Portland, OR 97204-3213


-----Original Message-----
From: Justin Meyer [mailto:[hidden email]]
Sent: Wednesday, November 12, 2008 6:44 AM
To: [hidden email]
Subject: Minimum Number of Groups for Nested GLM/GZLM?

Hi SPSS list,



I have been using SPSS 17's GLM Univariate and Generalized Linear Models
to analyze student level data where students are nested within teachers.
I am concerned that there may be some minimum number of teachers
necessary for this type of analysis. Is there a minimum number of groups
(teachers) when nesting data in this way? Are there any articles that
discuss this? I searched the internet and journals, but I wasn't able to
come up with anything that seemed relevant.



Thanks,

____________________________________

Justin Meyer

Rowland Reading Foundation

____________________________________

=======
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

[Russel Wildeman]

See Snijders and Bosker (1999) the book just google it

Russell Wildeman
Programme Manager
The Economic Governance Programme (EGP)
Idasa
Tel: [phone]
Mobile: [phone]
Fax: [phone]

-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of
Justin Meyer
Sent: 12 November 2008 04:44 PM
To: [hidden email]
Subject: Minimum Number of Groups for Nested GLM/GZLM?

Hi SPSS list,



I have been using SPSS 17's GLM Univariate and Generalized Linear Models
to analyze student level data where students are nested within teachers.
I am concerned that there may be some minimum number of teachers
necessary for this type of analysis. Is there a minimum number of groups
(teachers) when nesting data in this way? Are there any articles that
discuss this? I searched the internet and journals, but I wasn't able to
come up with anything that seemed relevant.



Thanks,

____________________________________

Justin Meyer

Rowland Reading Foundation

____________________________________

=======
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