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Re: st: Questions Regarding Structural Equation Model (SEM)


From   Yuval Arbel <yuval.arbel@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Questions Regarding Structural Equation Model (SEM)
Date   Thu, 1 Nov 2012 08:27:48 +0200

Regarding my previous question I found the following link in stata website:

http://www.stata.com/stata12/structural-equation-modeling/explanation/

This link answers my previous question. However, just to be sure:

Does the example given there imply that the variable X is unobserved,
namely does not included in the dataset?

On Thu, Nov 1, 2012 at 6:55 AM, Yuval Arbel <yuval.arbel@gmail.com> wrote:
> William, unfortunately I don't have stata 12. However, my question is
> conceptual. Previous stata versions had the possibility to estimate
> system of equations using, for example, -reg3-. The question is what
> is the supplements in
> -sem-. The broader question will therefore be whether the terms
> "Structural Equation Model" and "System of Structural Equations" are
> identical
>
> On Thu, Nov 1, 2012 at 6:38 AM, William Buchanan
> <william@williambuchanan.net> wrote:
>> Hi Yuval,
>>
>> Prior to Stata 12 there wasn't any native SEM functionality. If you look at [SEM] on the online help or the documentation itself you can find additional details regarding what you might be looking for.
>>
>> HTH,
>> Billy
>>
>> Sent from my iPhone
>>
>> On Oct 31, 2012, at 21:29, Yuval Arbel <yuval.arbel@gmail.com> wrote:
>>
>>> William, thanks for the quick answer. Is there any related material in
>>> stata journal? what are the supplements (if any) of the -sem- commands
>>> with respect to previous versions?
>>>
>>> On Thu, Nov 1, 2012 at 6:21 AM, William Buchanan
>>> <william@williambuchanan.net> wrote:
>>>> Hi Yuval,
>>>>
>>>> The -sem- command was introduced in Stata 12. You can find user written packages that can fit measurement models, path analysis models, and -gllamm- is incredibly flexible.
>>>>
>>>> HTH,
>>>> Billy
>>>>
>>>> Sent from my iPhone
>>>>
>>>> On Oct 31, 2012, at 21:08, Yuval Arbel <yuval.arbel@gmail.com> wrote:
>>>>
>>>>> Dear Statalisters,
>>>>>
>>>>> Can anyone address me to a relevant stata material regarding
>>>>> structural equation models?
>>>>>
>>>>> From my previous knowledge,, structural equations are the original
>>>>> equations in a system. Is there more to it?
>>>>>
>>>>> I'm working with stata 11.2. Interestingly, I cannot find or install
>>>>> the -sem- command. On the other hand, I can install other related
>>>>> commands,
>>>>> such as, -lmasem-. Is there any particular reason for this?
>>>>>
>>>>> Needless to say that any assistance will be greatly appreciated
>>>>> --
>>>>> Dr. Yuval Arbel
>>>>> School of Business
>>>>> Carmel Academic Center
>>>>> 4 Shaar Palmer Street,
>>>>> Haifa 33031, Israel
>>>>> e-mail1: yuval.arbel@carmel.ac.il
>>>>> e-mail2: yuval.arbel@gmail.com
>>>>> *
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>>>>
>>>> *
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>>>
>>>
>>>
>>> --
>>> Dr. Yuval Arbel
>>> School of Business
>>> Carmel Academic Center
>>> 4 Shaar Palmer Street,
>>> Haifa 33031, Israel
>>> e-mail1: yuval.arbel@carmel.ac.il
>>> e-mail2: yuval.arbel@gmail.com
>>> *
>>> *   For searches and help try:
>>> *   http://www.stata.com/help.cgi?search
>>> *   http://www.stata.com/support/faqs/resources/statalist-faq/
>>> *   http://www.ats.ucla.edu/stat/stata/
>>
>> *
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>
>
>
> --
> Dr. Yuval Arbel
> School of Business
> Carmel Academic Center
> 4 Shaar Palmer Street,
> Haifa 33031, Israel
> e-mail1: yuval.arbel@carmel.ac.il
> e-mail2: yuval.arbel@gmail.com



-- 
Dr. Yuval Arbel
School of Business
Carmel Academic Center
4 Shaar Palmer Street,
Haifa 33031, Israel
e-mail1: yuval.arbel@carmel.ac.il
e-mail2: yuval.arbel@gmail.com
*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


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