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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>In my opinion, Option 3&#8230;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<div>

<p class=MsoNormal><font size=3 color=navy face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:navy'>Andrew Kyngdon, PhD MAPS</span></font></p>

<p class=MsoNormal><font size=3 color=navy face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:navy'>EAA Postdoctoral Fellow</span></font></p>

<p class=MsoNormal><font size=3 color=navy face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:navy'>Educational Assessment </span></font><font
  color=navy face=Arial><span style='font-family:Arial;color:navy'>Australia</span></font></p>

<p class=MsoNormal><font size=3 color=navy face=Arial><span style='font-size:
  12.0pt;font-family:Arial;color:navy'>P.O. Box</span></font><font color=navy
 face=Arial><span style='font-family:Arial;color:navy'> 8020</span></font></p>

<p class=MsoNormal><font size=3 color=navy face=Arial><span style='font-size:
  12.0pt;font-family:Arial;color:navy'>ALEXANDRIA</span></font><font
color=navy face=Arial><span style='font-family:Arial;color:navy'> NSW 2015, </span></font><font
  color=navy face=Arial><span style='font-family:Arial;color:navy'>AUSTRALIA</span></font></p>

<p class=MsoNormal><font size=3 color=navy face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:navy'>Ph. +61283441040</span></font></p>

<p class=MsoNormal><font size=3 color=navy face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:navy'>Fax. +61283441085</span></font></p>

</div>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> rasch-bounces@acer.edu.au
[mailto:rasch-bounces@acer.edu.au] <b><span style='font-weight:bold'>On Behalf
Of </span></b>Agustin Tristan<br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><font size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>Monday,
 23 January 2006</span></font><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma'> </span></font><font
 size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>12:08
 PM</span></font><font size=2 face=Tahoma><span lang=EN-US style='font-size:
10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> renselange@earthlink.net;
trevor.bond@jcu.edu.au; rasch@acer.edu.au<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Rasch] counts to
scale conversion</span></font></p>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>&nbsp;</span></font></p>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Hi! I'm trying to follow
this topic concerning crickets and scales.</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>In abstract:&nbsp; Which
is better?</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>1)&nbsp;The simple linear
model even if it doesn't fit (the linear&nbsp;model&nbsp;for the crickets'
case).</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>2)&nbsp;Any&nbsp;model
who permits us to fit the data (the exp(something) looks to be like that).</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>3)&nbsp;A theoretical
model&nbsp;telling us (and the crickets too) how is the way crickets
should&nbsp;adjust the frequency of&nbsp;&nbsp;the&nbsp;noise they produce
according to temperature...specially if this theoretical model is exp(someting)
because it looks more interesting or impressive.</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>&nbsp;</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I like Nature and its
relationship with math and for me it was interesting to know&nbsp;that crickets
may use the exponential (even if they don't care about the mathematical
formulation), as well as the seeds in sunflowers grow exponentially from their
center, or the snails grow their shell, or the ivy plants grow in an helical 3D
curve, or the soil slopes (in soil mechanics) become unstable and fail
according to a logarithmic spiral, or the growth&nbsp;of populations follows a
logistic model, and so forth... I can also recognize that I prefer objective
items that behave as the Rasch model, but...I cannot decide in all those case
which is better between (1), (2) and (3)...</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Regards</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Agustin Tristan<br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>Rense
&lt;renselange@earthlink.net&gt;</span></i></b> wrote:</span></font></p>

</div>

<blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><br>
All this illustrates that if we want to stay in business as test gurus then<br>
we'd better forget about meaningful item hierarchies, sample independence,<br>
additive measures, and other such niceties. Rather, using methods whose<br>
results need to be recalibrated for boys, girls, old, and young, ..,<br>
whatever, ... - and adding a few things like &quot;log(exp(something
...))&quot; to<br>
our tech reports - should greatly help with job security. :)<br>
<br>
Rense Lange<br>
<br>
-----Original Message-----<br>
From: rasch-bounces@acer.edu.au [mailto:rasch-bounces@acer.edu.au]On<br>
Behalf Of Trevor Bond<br>
Sent: </span></font>Saturday, January 21, 2006 5:43 PM<br>
To: Rasch listserve<br>
Subject: [Rasch] counts to scale conversion<br>
<br>
<br>
For all budding scale constructors, this is a hoot:<br>
http://www.dartmouth.edu/~genchem/0102/spring/6winn/cricket.html<br>
check the lovely graphs<br>
collegially<br>
Trevor<br>
--<br>
Trevor G BOND Ph D<br>
Professor and Head of Dept<br>
Educational Psychology, Counselling &amp; Learning Needs<br>
D2-2F-01A EPCL Dept.<br>
Hong Kong Institute of Education<br>
10 Lo Ping Rd, Tai Po<br>
New Territories HONG KONG<br>
<br>
Voice: (852) 2948 8473<br>
Fax: (852) 2948 7983<br>
Mob:<br>
<br>
_______________________________________________<br>
Rasch mailing list<br>
Rasch@acer.edu.au<br>
http://listserv3.acer.edu.au/mailman/listinfo/rasch<br>
<br>
<br>
_______________________________________________<br>
Rasch mailing list<br>
Rasch@acer.edu.au<br>
http://listserv3.acer.edu.au/mailman/listinfo/rasch</p>

</blockquote>

<p class=MsoNormal style='margin-right:0cm;margin-bottom:12.0pt;margin-left:
36.0pt'><font size=3 face="Times New Roman"><span style='font-size:12.0pt'><br>
<br>
</span></font></p>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><strong><b><font size=3
color="#0000bf" face="Times New Roman"><span style='font-size:12.0pt;
color:#0000BF'>FAMILIA DE PROGRAMAS KALT. </span></font></b></strong></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Mariano Jiménez 1830 A </span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Col. Balcones del Valle </span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>78280, </span></font>San
  Luis Potosí, S.L.P. México </p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>TEL (52) 44-4820 37 88,
44-4820 04 31 </span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>FAX (52)&nbsp;44-4815 48
48 </span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>web page (in Spanish AND
ENGLISH): <strong><b><font color="#c00000" face="Times New Roman"><span
style='color:#C00000'>http://www.ieesa-kalt.com</span></font></b></strong></span></font></p>

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size=3 face="Times New Roman"><span style='font-size:12.0pt'>

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<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Yahoo! Photos<br>
Ring in the New Year with <a
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