syntactic complexity using MEGRASP?

[Kimberly Mueller]

Thank you very much Brian! This is really helpful!
Kimberly

On Thursday, August 25, 2016 at 1:42:17 PM UTC-5, Brian MacWhinney wrote:
>
> Dear Kimberley,
>
> Once you have a dependency structure from MEGRASP, you could tabulate the 
> GRs (grammatical relations) the involve subordination (CMOD, XMOD, CPRED, 
> XPRED) using FREQ and then divide by total #words.  However, if you want to 
> exactly replicate the methods of the subordination index as defined in 
> SALT, you would have to really do this all by hand.  My guess is that an 
> automatic computation based on the codes on the %gra line would be just as 
> accurate as the 16 step/criteria SI computation defined in SALT.  It would 
> be interesting to know for sure.
>
>  
>
> --Brian MacW
>
>  
>
> *From: *ChiBolts <chib... at googlegroups.com <javascript:>> on behalf of 
> Kimberly Mueller <digg... at gmail.com <javascript:>>
> *Reply-To: *ChiBolts <chib... at googlegroups.com <javascript:>>
> *Date: *Thursday, August 25, 2016 at 2:04 PM
> *To: *ChiBolts <chib... at googlegroups.com <javascript:>>
> *Cc: *Davida Fromm <fr... at andrew.cmu.edu <javascript:>>
> *Subject: *Re: syntactic complexity using MEGRASP?
>
>  
>
> Hi Brian,
> Thank you! Yes, I have been using the propositional density measure which 
> is derived from CPIDER within CLAN and that has been useful so far.  I was 
> hoping to obtain more specific syntax complexity measures, such as 
> subordination index.  And I do have the POS tagging from MOR, and did also 
> run the MEGRASP command; I am just unsure of how to extract the right 
> variables for syntactic complexity, such as a subordination index.  If 
> anyone has experience with that, I'd love to get advice!
>
>
> On Thursday, August 25, 2016 at 10:22:09 AM UTC-5, Brian MacWhinney wrote: 
>
> Dear Kimberley,
>
> One measure people have used for AD is propositional density.  There is an 
> automatic syntactic complexity analyzer built into CLAN.  However, you need 
> to first have a %mor line created to use it.   In general, most measures of 
> complexity will require some kind of part-of-speech tagging or syntactic 
> analysis.
>
>  
>
> --Brian MacWhinney
>
>  
>
> *From: *ChiBolts <chib... at googlegroups.com> on behalf of Kimberly Mueller 
> <digg... at gmail.com>
> *Reply-To: *ChiBolts <chib... at googlegroups.com>
> *Date: *Thursday, August 25, 2016 at 11:10 AM
> *To: *ChiBolts <chib... at googlegroups.com>
> *Subject: *syntactic complexity using MEGRASP?
>
>  
>
> Dear All,
>
> I am continuing to search for an efficient way to analyze syntactic 
> complexity, using cookie theft samples in a late-middle aged cohort at risk 
> for Alzheimer's Disease.  Some of these participants are declining in 
> memory and language, but I expect deficits in syntax to be extremely 
> subtle, if they exist at all.
>
> I have quite a large number of transcripts, and we unfortunately did not 
> hand code clauses beforehand, so I am hoping for an automated way to look 
> at complexity.  Does anyone have any suggestions?
>
> Sincere thanks!
> Kimberly Mueller, UW Madison
>
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