<div dir="ltr">Dear Brian,<div><br></div><div>thank you very much for your answer. I will try to get the hold of the book as soon as possible. And yes, I do need the measure for within-group comparison. I am also looking forward to MATTR.</div><div><br></div><div>Also, I am sorry if this is also explained somewhere else, but form the CLAN manual I did not understand exactly what are the replacements. I do understand (hopefully:) how the measure works, but not this part. I would really appreciate the explanation or maybe a reference.</div><div><br></div><div>Best,</div><div>Gordana</div><div><br><br>On Wednesday, 15 July 2015 18:30:34 UTC+2, Brian MacWhinney wrote:<blockquote class="gmail_quote" style="margin: 0;margin-left: 0.8ex;border-left: 1px #ccc solid;padding-left: 1ex;"><div style="word-wrap:break-word">Dear Gordana,<div><br><div> You might want to double check the book by Malvern et al. on VOCD, but I believe that the minimum value is set at 50 because results are unstable for smaller files. </div><div> We plan to implement another measure of lexical diversity called MATTR (moving average TTR) that may be a bit better for your purposes. Once it is ready, I will post a note to ChiBolts about this.</div><div> One general point. If all you care about is making within-group comparisons, then using small transcripts is not a huge problem. However, if you were to attempt to compare lexical diversity numbers from small transcripts of the type you are describing with those with large transcripts, then even VOCD would run into problems.</div><div><br></div><div>—Brian MacWhinney<br><div><blockquote type="cite"><div>On Jul 15, 2015, at 9:35 AM, Gordana Hrzica <<a href="javascript:" target="_blank" rel="nofollow" onmousedown="this.href='javascript:';return true;" onclick="this.href='javascript:';return true;">gordana...@gmail.com</a>> wrote:</div><br><div><div dir="ltr">Dear all,<div><br></div><div>I would like to have a measure of vocabulary diversity in number of transcripts of children's narratives. VOCD seems like the most reliable choice for that and I would really like to use it. However, narratives are rather small. Most of them is between 80 and 170 tokens, but some of them are lower than 50. I know that default minimum value for calculating VOCD is 50 tokens, but it can also be set lower. Also, I believe that using the option of replacements would give me some results. However, I do not know how reliable such results would be and which of the two mentioned methods should give me more appropriate measures.</div><div><br></div><div>I am sorry if I'm posting this to the wrong group. Perhaps it is more of a methodological than a technical question. I feel it it somewhere between two worlds:). But if it would be more appropriate for info-childes, I will place it there.</div><div><br></div><div>I would really appreciate your help on this one.</div></div><div><br></div>
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