VOCD is too high

[Brian MacWhinney]

Dear Nick,
      Looking at the file you sent, the VOCD score seems about right, because this child was using a lot of different words.  Just by way of comparison,  I ran VOCD on the various files in the Brown/Eve file and Eve got higher and higher scores as Eve got older.  Everything seemed fine.  Leonid checked on the issue you mention about KIDEVAL giving different values from a separate run of VOCD and he could not see problems there either.

—Brian MacWhinney

From: ChiBolts <chibolts at googlegroups.com<mailto:chibolts at googlegroups.com>> on behalf of Nick Riches <nick.riches at gmail.com<mailto:nick.riches at gmail.com>>
Reply-To: ChiBolts <chibolts at googlegroups.com<mailto:chibolts at googlegroups.com>>
Date: Thursday, April 14, 2016 at 4:01 PM
To: ChiBolts <chibolts at googlegroups.com<mailto:chibolts at googlegroups.com>>
Subject: VOCD is too high

Hi

I'm teaching CLAN to Speech and Language Therapy students. As an exercise they have to calculate VOCD

One student is consistently getting VOCD scores much higher than 70 (for the VOCD program) and around 100 for KIDEVAL. This is a young child. I've had a brief look and can't see anything odd about the coding that would lead to these kind of results. I've attached the CHAT script, and the MOR.PST.CEX scripts.

Does anyone know why it's so high?

Thanks in advance.

Nick

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