VOCD manual

[Gaby Silva]

Dear Amber, 
A study by McCarthy & Jarvis (2007) found that VOCD performs reasonably well in the 100 to 400 tokens (correlation coefficient with tokens, r=.22). I haven't checked that source in a while, but perhaps it has more information about smaller samples.
The source is:
McCarthy, P. M., & Jarvis, S. (2007). Vocd: A
theoretical and empirical evaluation. Language
Testing, 24(4), 459-488.
Good luck!
Gaby Silva
Dra. Gabriela Silva MacedaProfesor-InvestigadorFacultad de Psicología, UASLP.Carretera Central Km. 424.5San Luis Potosí, S.L.P., 78494MéxicoTel. +52 (444)832-1000 Ext. 9358
Date: Wed, 19 Aug 2015 07:46:58 -0700
From: ambalashes at gmail.com
To: chibolts at googlegroups.com
Subject: Re: VOCD manual

In fact, perhaps I should just post my question on here. The CHAT manual talks about calculating D and states that it can be done on samples as small as 50 tokens. However, reliability is less good for small samples. Could anyone advise me on whether VOCD is still a more valid measure than TTR, even for small transcripts (e.g., during a shared-book reading session)? I assume that as long as the sample is large enough for KIDEVAL to be able to give me VOCD values then it is OK?
Thanks
Amber

On Wednesday, 19 August 2015 15:36:05 UTC+1, Amber  wrote:Dear all

The CLAN manual contains the following link, which no longer appears to work. 

http://childes.psy.cmu.edu/manuals/vocd.doc

Is there a new link to the VOCD manual/another similar article? 

Many thanks
Amber






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