calculating subject-verb diversity in CLAN

[Risa Stiegler]

Hi all,

Yes, we are calculating Subject-Verb Diversity specifically based on 
Hadley, McKenna, & Rispoli (2018)'s methods, using their supplemental 
materials as our guide! So using a tool that you have created with Dr. 
Hadley's lab would be perfect for us as well.

Thanks!
Risa

On Monday, October 9, 2023 at 5:21:15 PM UTC-4 macw wrote:

> Dear Risa,
> Leonid can write some code to do this. However, I think it would be useful 
> to make sure that people are tracking subject-verb diversity in a 
> well-defined and consistent manner. People in Pam Hadley’s lab at Illinois 
> considered this quite important based on work Hadley, McKenna, and Rispoli 
> reported in 2018 in AJSLP. Is this what you are trying to compute? We have 
> already worked a bit with Pam’s lab on this and it would be best to make 
> sure that we implement ways of doing this consistently.
>
> — Brian MacWhinney
> Teresa Heinz Professor of Cognitive Psychology, 
> Language Technologies and Modern Languages, CMU 
>
> > On Oct 9, 2023, at 3:19 PM, Risa Stiegler <rsti... at purdue.edu> wrote:
> > 
> > Hello!
> > 
> > I am trying to calculate the number of unique subject-verb combinations 
> (the subject verb diversity) in a child's speech. 
> > 
> > I'm able to use combo to find each instance of a child's utterance that 
> has a subject and a verb (or participle):
> > 
> > combo +t*CHI +d7 +sg|SUBJ^*^m|part+m|v +g6 *.cha
> > 
> > I have 2 questions:
> > 1) how can I exclude utterances that are marked with $RT on the %spa 
> tier? (In order to exclude sentences where the child is directly imitating 
> adult speech.)
> > 
> > 2) Is there a way to take the output of this combo command and create a 
> list of just the subject-verb combinations and their frequencies? The combo 
> command outputs the main, mor, and gra tiers, and marks the subject and 
> verb:
> > *CHI: a baby is swimming .
> > %mor⇔%gra: det:art|a⇔1|2|DET (1)n|baby⇔2|4|SUBJ aux|be&3s⇔3|4|AUX
> > (1)part|swim-presp⇔4|0|ROOT .⇔5|4|PUNCT
> > 
> > It would be great if CLAN could go through and pull "baby swim" instead 
> of having a human do it.
> > 
> > I saw in the 2023 CHILDES update that you are working on calculating SVD 
> automatically, so if there is a better way to do it than what I've come up 
> with I would love to hear it!
> > 
> > Thank you so much!
> > Risa Stiegler
> > 
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>

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