<div dir="ltr">Dear Brian<br><br>Thanks for getting back so quickly. I've just checked, and KIDEVAL is consistent with VOCD. Apologies - the student reported a difference, and I should have triple-checked before posting.<br><br>Regarding VOCD, I've been using the norms provided in Durán, P., Malvern, D., Richards, B., & Chipere, N. (2004). Developmental Trends in Lexical Diversity. <i>Applied Linguistics</i>, <i>25</i>(2), 220–242. http://doi.org/10.1093/applin/25.2.220. This seems to be the most recent published source of norms on D, but I may be wrong. According to these, a D score of 70 would put a child aged 6 years old in the 90th centile. However, according to the norms which Nan sent through in the 2016 article "Your laptop to the rescue", a D score of 70 is about average for this age. I presume that these recent norms are more comprehensive. So the issue is not the accuracy of the software, but where to obtain a good set of norms to interpret VOCD.<br><br>It would be great if I could circulate this chapter to the students, but it may be subject to copyright. I could also develop my own norms, but my CLAN skills are not quite up to scratch (just yet!)<br><br>Best wishes<br><br>Nick Riches<br><br><span class="Z3988" title="url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzotero.org%3A2&rft_id=info%3Adoi%2F10.1093%2Fapplin%2F25.2.220&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Developmental%20Trends%20in%20Lexical%20Diversity&rft.jtitle=Applied%20Linguistics&rft.stitle=Applied%20Linguistics&rft.volume=25&rft.issue=2&rft.aufirst=Pilar&rft.aulast=Dur%C3%A1n&rft.au=Pilar%20Dur%C3%A1n&rft.au=David%20Malvern&rft.au=Brian%20Richards&rft.au=Ngoni%20Chipere&rft.date=2004-06-01&rft.pages=220-242&rft.spage=220&rft.epage=242&rft.issn=0142-6001%2C%201477-450X&rft.language=en"></span>
<br>On Thursday, April 14, 2016 at 9:58:44 PM UTC+1, Brian MacWhinney wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;">
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<div>Dear Nick,</div>
<div> 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. </div>
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<div>—Brian MacWhinney</div>
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<span style="font-weight:bold">From: </span>ChiBolts <<a href="javascript:" target="_blank" gdf-obfuscated-mailto="HhQRUXxGLQAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">chib...@googlegroups.com</a>> on behalf of Nick Riches <<a href="javascript:" target="_blank" gdf-obfuscated-mailto="HhQRUXxGLQAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">nick....@gmail.com</a>><br>
<span style="font-weight:bold">Reply-To: </span>ChiBolts <<a href="javascript:" target="_blank" gdf-obfuscated-mailto="HhQRUXxGLQAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">chib...@googlegroups.com</a>><br>
<span style="font-weight:bold">Date: </span>Thursday, April 14, 2016 at 4:01 PM<br>
<span style="font-weight:bold">To: </span>ChiBolts <<a href="javascript:" target="_blank" gdf-obfuscated-mailto="HhQRUXxGLQAJ" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">chib...@googlegroups.com</a>><br>
<span style="font-weight:bold">Subject: </span>VOCD is too high<br>
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<div dir="ltr">Hi<br>
<br>
I'm teaching CLAN to Speech and Language Therapy students. As an exercise they have to calculate VOCD<br>
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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.<br>
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Does anyone know why it's so high?<br>
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Thanks in advance.<br>
<br>
Nick<br>
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