<HTML dir=ltr><HEAD><TITLE>Re: Early phonological development</TITLE>
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<DIV dir=ltr><FONT face=Arial color=#000000 size=2>There is a Psych review article by Adolph and Johnson coming out soon that examines the role of sampling frequency in longitudinal developmental research essentially showing how long sampling intervals can provide a very distorted picture of the actual developmental profile.</FONT></DIV>
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<DIV dir=ltr><FONT face=Arial size=2>Peter Gordon</FONT></DIV>
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<DIV id=idSignature19916 dir=ltr><PRE>Peter Gordon, Associate Professor
525 W 120th St. Box 180
Biobehavioral Sciences Department
Teachers College, Columbia University
New York, NY 10027
Office Phone: (212) 678-8162
FAX: (212) 678-8233
Web Page: www.tc.edu/faculty/index.htm?facid=pg328</PRE></DIV>
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<FONT face=Tahoma size=2><B>From:</B> info-childes@googlegroups.com on behalf of Kim Oller<BR><B>Sent:</B> Mon 5/26/2008 1:01 PM<BR><B>To:</B> Info-CHILDES<BR><B>Subject:</B> Re: Early phonological development<BR></FONT><BR></DIV>
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<P><FONT size=2>Dear Nina,<BR>I second the comments from Marilyn about sampling more frequently<BR>rather than at longer intervals. A current body of research coming<BR>from our own laboratories and from analysis of the huge infant<BR>database from Infoture suggests extraordinary levels of day to day and<BR>hour to hour variation in the focus of infant vocalization and speech.<BR>This of course makes sense, but I think we have not in the past paid<BR>nearly enough attention to this kind of variation. There will be<BR>reports on this phenomenon from our laboratories soon.<BR>Best wishes,<BR>Kim<BR><BR>D, Kimbrough Oller<BR>Professor and Plough Chair of Excellence<BR>The University of Memphis<BR><BR><BR>On May 22, 4:55 am, Marilyn Vihman <mv...@york.ac.uk> wrote:<BR>> Dear Nina,<BR>><BR>> If you were working on this project with me I would recommend shorter<BR>> recording sessions but more frequent intervals, since the lexicon and<BR>> phonological patterning of children changes so rapidly in this period.<BR>> If you'd like more of my views, just write me directly; I have data<BR>> from children of those ages learning a number of different languages.<BR>><BR>> -marilyn vihman<BR>><BR>> On 22 May 2008, at 10:50, Nina wrote:<BR>><BR>><BR>><BR>> > Dear all,<BR>><BR>> > I am currently planning a three year post doctor project on the early<BR>> > phonological development of Norwegian children. I find it difficult to<BR>> > determine the appropriate number of children for this study. My<BR>> > current plan is to compile data from one-hour play sessions with 10<BR>> > children every six weeks for six months (18, 19.5, 21, 22.5, 24<BR>> > months). Has anyone done a similar study or could anyone in other ways<BR>> > supply me with any ideas concerning the number of participants,<BR>> > session intervals or the six months period of data compilation?<BR>><BR>> > Regards, Nina G. Garmann<BR>><BR>> Marilyn M. Vihman<BR>> Professor, Language and Linguistic Science<BR>> V/C/210, 2nd Floor, Block C, Vanbrugh College<BR>> University of York<BR>> Heslington<BR>> York YO10 5DD<BR>> tel 01904 433612<BR>> fax 01904 432673<BR><BR><BR></FONT></P></DIV><br>
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