databases with sibling information?

[J.Alexander]

Brian,

Thanks so much. Those are very helpful solutions. Our ultimate goal was to 
find a corpus where we could compare children with older siblings to those 
without on a number of different measures (sentence complexity, unique 
words used, etc) rather than looking at sibling interactions themselves. 
I'll poke around in the file headers and see what I can find. 

I assumed we'd eventually have to tweak the research question as we saw 
what information was available. It's a student's senior thesis, so while 
we're limited on time and resources, we do have a great deal of flexibility 
in the ultimate research question.  It would be possible for my student to 
collect a small dataset of CDI responses for only children and those with 
siblings, but I wanted to help her gain some experience working with 
transcriptions of utterances as well as the CDI. 

Thanks again for your help,
Jessica


On Monday, October 1, 2012 11:52:09 PM UTC-4, Brian MacWhinney wrote:
>
> Dear Jessica,
>
>     Unfortunately, researchers often do not systematically address this 
> issue.  For example, in the New England corpus, the children came into the 
> lab, so information about siblings seemed less important .  However, the 
> Hall corpus was done in the home and at school and there are siblings 
> around and their ages are recorded.  For the smaller case studies, older 
> child output is often available.  For example, in the MacWhinney corpus, 
> Ross is nearly always talking with his younger brother Mark. The 
> Ervin-Tripp data, which are still being put into CHAT have families with 
> older siblings present.  And there are even some corpora, such as the 
> Conti-Ramsden ones where data comes from both a child with SLI and the 
> sibling, but in separate files.  If you work with a given transcript, often 
> you will find that information encoded in the header line of the file 
> itself.  Basically, there is some information on this, but it is not very 
> systematic. 
>    If your interest is basically in the role of older siblings, why not 
> just go through to spot transcripts in which older siblings are present and 
> work with those?
>    Perhaps some other readers will have further suggestions.
>
> -Brian MacWhinney
>
> On Oct 1, 2012, at 11:22 PM, "J.Alexander" <duk... at gmail.com <javascript:>> 
> wrote:
>
> Hi all,
>
> I'm currently mentoring an undergraduate student who is interested in the 
> role of older siblings in early language development. I typically work with 
> adults, so the CHILDES databases seemed like a potential way to help her 
> get some experience working with child language data given limited time and 
> resources. I'm new to using the CHILDES databases, so I may have overlooked 
> this information, but is family/demographic information easily available 
> for any of the children in the larger sample databases (such as the New 
> England, Rollins, Davis, or HSLLD)?
>
> Thanks for your help,
> Jessica Alexander
>
> Assistant Professor of Psychology
> Concord University
>
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