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	<title>Comments on: Two-point scales</title>
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	<link>http://crookedtimber.org/2006/08/09/two-point-scales/</link>
	<description>Out of the crooked timber of humanity, no straight thing was ever made</description>
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		<title>By: Craig Ewert</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168573</link>
		<dc:creator>Craig Ewert</dc:creator>
		<pubDate>Mon, 14 Aug 2006 20:39:13 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168573</guid>
		<description>Dammit, I can&#039;t even operate a comment box.

I give myself a -2 in blog commenting.</description>
		<content:encoded><![CDATA[	<p>Dammit, I can&#8217;t even operate a comment box.</p>

	<p>I give myself a -2 in blog commenting.</p>
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		<title>By: Craig Ewert</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168572</link>
		<dc:creator>Craig Ewert</dc:creator>
		<pubDate>Mon, 14 Aug 2006 20:38:21 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168572</guid>
		<description>Antti wrote:
&lt;blockquote&gt;Hi,

The magical number is seven, plus or minus two.

http://www.well.com/~smalin/miller.html

Have a nice day,
Antti
This result is irrelevant.  The seven +/- two rule is for remembering bits of data, not for making rankings of things.

As the Spinal tap example hints, and as the old &quot;on a scale of one to ten, she&#039;s a twelve&quot; joke also indicates, you should ignore the arbitrary boundaries often placed on these scales.  Are movies rates from 1 to 4 stars (actually seven ranks, from 1 to 4 by 1/2 steps)?  Then occasionally hand out a 6, or a -3. You know in your heart that some are just that bad, or that good.

Likewise with every other ranking/judging metric you have ever encountered.&lt;/blockquote&gt;</description>
		<content:encoded><![CDATA[	<p>Antti wrote:<br />
<blockquote>Hi,</blockquote></p>

	<p>The magical number is seven, plus or minus two.</p>

	<p><a href="http://www.well.com/~smalin/miller.html" rel="nofollow">http://www.well.com/~smalin/miller.html</a></p>

	<p>Have a nice day,<br />
Antti<br />
This result is irrelevant.  The seven +/- two rule is for remembering bits of data, not for making rankings of things.</p>

	<p>As the Spinal tap example hints, and as the old &#8220;on a scale of one to ten, she&#8217;s a twelve&#8221; joke also indicates, you should ignore the arbitrary boundaries often placed on these scales.  Are movies rates from 1 to 4 stars (actually seven ranks, from 1 to 4 by 1/2 steps)?  Then occasionally hand out a 6, or a -3. You know in your heart that some are just that bad, or that good.</p>

	<p>Likewise with every other ranking/judging metric you have ever encountered.</p>
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		<title>By: Kieran Healy&#8217;s Weblog &#187; Blog Archive &#187; Queueing for Terror</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168159</link>
		<dc:creator>Kieran Healy&#8217;s Weblog &#187; Blog Archive &#187; Queueing for Terror</dc:creator>
		<pubDate>Fri, 11 Aug 2006 10:34:06 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168159</guid>
		<description>[...] Well, I picked a good day to be taking an international flight. At least I&#8217;m not in the UK. Next time I travel, I&#8217;ll be sure to check to see whether John has identified any empirical regularities about my mode of transport and act accordingly. This is why economics is the queen of the social sciences. [...]</description>
		<content:encoded><![CDATA[	<p>[...] Well, I picked a good day to be taking an international flight. At least I&#8217;m not in the UK. Next time I travel, I&#8217;ll be sure to check to see whether John has identified any empirical regularities about my mode of transport and act accordingly. This is why economics is the queen of the social sciences. [...]</p>
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		<title>By: Uncle Kvetch</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168072</link>
		<dc:creator>Uncle Kvetch</dc:creator>
		<pubDate>Thu, 10 Aug 2006 16:26:41 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168072</guid>
		<description>&lt;i&gt;The iTunes five-star ratings system seems flawed for similar reasons, because (unlike reviewers) people who have music on their computers are unlikely to keep stuff around that’s at the bottom end of the scale.&lt;/i&gt;

Actually, I find it quite handy. Sometimes I download lots of stuff at once, including &quot;song of the day&quot; podcasts by artists I&#039;m not familiar with, and then listen to it on the iPod. If something new pops up that I don&#039;t like and don&#039;t want to keep, I immediately give it a single star. Then every once in awhile on iTunes I search out all the one-star tracks and delete them.</description>
		<content:encoded><![CDATA[	<p><i>The iTunes five-star ratings system seems flawed for similar reasons, because (unlike reviewers) people who have music on their computers are unlikely to keep stuff around that&#8217;s at the bottom end of the scale.</i></p>

	<p>Actually, I find it quite handy. Sometimes I download lots of stuff at once, including &#8220;song of the day&#8221; podcasts by artists I&#8217;m not familiar with, and then listen to it on the iPod. If something new pops up that I don&#8217;t like and don&#8217;t want to keep, I immediately give it a single star. Then every once in awhile on iTunes I search out all the one-star tracks and delete them.</p>
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		<title>By: Nash</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168045</link>
		<dc:creator>Nash</dc:creator>
		<pubDate>Thu, 10 Aug 2006 14:30:06 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168045</guid>
		<description>&lt;i&gt;has anyone ever had you call the “wizard”?

That used to be my favorite too. I learned it from my uncle when I was a kid. Haven’t thought of it in years.&lt;/i&gt;

All of my family know to expect a call to the wizard at any time, day or night.  Even wakened from his or her slumbers at 3 AM, the wizard has always come through.

I&#039;m glad someone else knows the wizard.</description>
		<content:encoded><![CDATA[	<p><i>has anyone ever had you call the &#8220;wizard&#8221;?</i></p>

	<p>That used to be my favorite too. I learned it from my uncle when I was a kid. Haven&#8217;t thought of it in years.</p>

	<p>All of my family know to expect a call to the wizard at any time, day or night.  Even wakened from his or her slumbers at 3 AM, the wizard has always come through.</p>

	<p>I&#8217;m glad someone else knows the wizard.</p>
 ]]></content:encoded>
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		<title>By: nick s</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168041</link>
		<dc:creator>nick s</dc:creator>
		<pubDate>Thu, 10 Aug 2006 14:26:28 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168041</guid>
		<description>Oops. Submitted too early. I think that iTunes would be better served with a two-and-a-half point scale that uses relative comparisons between the current track and the the preceding one: in essence &#039;better&#039;, &#039;worse&#039; and &#039;no opinion&#039;.</description>
		<content:encoded><![CDATA[	<p>Oops. Submitted too early. I think that iTunes would be better served with a two-and-a-half point scale that uses relative comparisons between the current track and the the preceding one: in essence &#8216;better&#8217;, &#8216;worse&#8217; and &#8216;no opinion&#8217;.</p>
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	<item>
		<title>By: nick s</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168038</link>
		<dc:creator>nick s</dc:creator>
		<pubDate>Thu, 10 Aug 2006 14:23:01 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168038</guid>
		<description>The iTunes five-star ratings system seems flawed for similar reasons, because (unlike reviewers) people who have music on their computers are unlikely to keep stuff around that&#039;s at the bottom end of the scale.</description>
		<content:encoded><![CDATA[	<p>The iTunes five-star ratings system seems flawed for similar reasons, because (unlike reviewers) people who have music on their computers are unlikely to keep stuff around that&#8217;s at the bottom end of the scale.</p>
 ]]></content:encoded>
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		<title>By: Richard Bellamy</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168033</link>
		<dc:creator>Richard Bellamy</dc:creator>
		<pubDate>Thu, 10 Aug 2006 13:56:04 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168033</guid>
		<description>&lt;i&gt;richard bellamy, are you sure that’s what your friend actually said? I’m guessing you have added one thing that they didn’t say, because there is a well-known “trick” in which the tester says
“pick a number from 1 to 4”&lt;/i&gt;

Possibly, and could be a related mental barrier to the thought of ranking from &quot;one to five&quot; (with five being the highest) to avoid the numbers one, two, and five.</description>
		<content:encoded><![CDATA[	<p><i>richard bellamy, are you sure that&#8217;s what your friend actually said? I&#8217;m guessing you have added one thing that they didn&#8217;t say, because there is a well-known &#8220;trick&#8221; in which the tester says<br />
&#8220;pick a number from 1 to 4&#8221;</i></p>

	<p>Possibly, and could be a related mental barrier to the thought of ranking from &#8220;one to five&#8221; (with five being the highest) to avoid the numbers one, two, and five.</p>
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		<title>By: James Joyner</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168017</link>
		<dc:creator>James Joyner</dc:creator>
		<pubDate>Thu, 10 Aug 2006 11:51:29 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168017</guid>
		<description>I note the sad irony that we&#039;ve been partially overtaken by events on this one as well. The Brits have actually gone to &quot;critical,&quot; although it&#039;s not clear whether it&#039;s system-wide.  As you note, we&#039;re at red for transatlantic flights and orange generally.</description>
		<content:encoded><![CDATA[	<p>I note the sad irony that we&#8217;ve been partially overtaken by events on this one as well. The Brits have actually gone to &#8220;critical,&#8221; although it&#8217;s not clear whether it&#8217;s system-wide.  As you note, we&#8217;re at red for transatlantic flights and orange generally.</p>
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		<title>By: Ben</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168009</link>
		<dc:creator>Ben</dc:creator>
		<pubDate>Thu, 10 Aug 2006 09:21:37 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168009</guid>
		<description>I&#039;d give this post 4/5.

It&#039;s something I&#039;ve definitely noticed in music reviews. I write for both The Oxford Student (newspaper) and www.uk-fusion.com and both officially use a 5* system. The latter avoid problems by using halves and even quarters, while the former regularly give 1* or zero to anything they take a dislike to.

I have also noticed the same tendency with student grades, though there it&#039;s obviously less justifiable to give zero to anyone you take a dislike to! It&#039;s particularly hard when grading Americans and not really knowing the scale; or, as I had this summer, &#039;poor, average, good, very good, superior&#039;. When average = 2/5 you wonder whether it&#039;s really the expected mode, or a euphemism for mediocre...</description>
		<content:encoded><![CDATA[	<p>I&#8217;d give this post 4/5.</p>

	<p>It&#8217;s something I&#8217;ve definitely noticed in music reviews. I write for both The Oxford Student (newspaper) and <a href="http://www.uk-fusion.com" rel="nofollow">http://www.uk-fusion.com</a> and both officially use a 5* system. The latter avoid problems by using halves and even quarters, while the former regularly give 1* or zero to anything they take a dislike to.</p>

	<p>I have also noticed the same tendency with student grades, though there it&#8217;s obviously less justifiable to give zero to anyone you take a dislike to! It&#8217;s particularly hard when grading Americans and not really knowing the scale; or, as I had this summer, &#8216;poor, average, good, very good, superior&#8217;. When average = 2/5 you wonder whether it&#8217;s really the expected mode, or a euphemism for mediocre&#8230;</p>
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		<title>By: Simon</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-168001</link>
		<dc:creator>Simon</dc:creator>
		<pubDate>Thu, 10 Aug 2006 07:19:59 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-168001</guid>
		<description>&lt;i&gt;The British government has only just made its own system public. It will be interesting to see how it is used.&lt;/i&gt;

I worked for the police for about six months last year, during which I had access to the threat classification (it was no great secret internally, being posted on the inner door as we entered the building). The threat has mostly been severe general (second highest) since 9/11, but was infamously lowered to substantial about a month before 7/7 then raised to the maximum afterwards, where it remained for a further month. They also had separate classifications for particular groups, eg dissident and indeed non-dissident Irish Republicans, for both of whom the threat was raised to substantial for a brief period after the IRA bank robbery.

Thanks to this morning&#039;s news, the threat is back to critical.</description>
		<content:encoded><![CDATA[	<p><i>The British government has only just made its own system public. It will be interesting to see how it is used.</i></p>

	<p>I worked for the police for about six months last year, during which I had access to the threat classification (it was no great secret internally, being posted on the inner door as we entered the building). The threat has mostly been severe general (second highest) since 9/11, but was infamously lowered to substantial about a month before 7/7 then raised to the maximum afterwards, where it remained for a further month. They also had separate classifications for particular groups, eg dissident and indeed non-dissident Irish Republicans, for both of whom the threat was raised to substantial for a brief period after the <span class="caps">IRA</span> bank robbery.</p>

	<p>Thanks to this morning&#8217;s news, the threat is back to critical.</p>
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		<title>By: anno-nymous</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-167966</link>
		<dc:creator>anno-nymous</dc:creator>
		<pubDate>Wed, 09 Aug 2006 23:46:32 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-167966</guid>
		<description>Fun Movie Clip:  You&#039;re thinking of http://www.zefrank.com/redalert/ .  I&#039;m pretty sure it&#039;s been featured on CT before.

Ze Frank, by the way, is the host of (in my opinion) the only Video Blog worth watching regularly, www.zefrank.com/theshow .</description>
		<content:encoded><![CDATA[	<p>Fun Movie Clip:  You&#8217;re thinking of <a href="http://www.zefrank.com/redalert/" rel="nofollow">http://www.zefrank.com/redalert/</a> .  I&#8217;m pretty sure it&#8217;s been featured on CT before.</p>

	<p>Ze Frank, by the way, is the host of (in my opinion) the only Video Blog worth watching regularly, <a href="http://www.zefrank.com/theshow" rel="nofollow">http://www.zefrank.com/theshow</a> .</p>
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		<title>By: The Continental Op</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-167960</link>
		<dc:creator>The Continental Op</dc:creator>
		<pubDate>Wed, 09 Aug 2006 22:37:50 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-167960</guid>
		<description>&lt;i&gt;has anyone ever had you call the “wizard”?&lt;/i&gt;

That used to be my favorite too. I learned it from my uncle when I was a kid. Haven&#039;t thought of it in years.</description>
		<content:encoded><![CDATA[	<p><i>has anyone ever had you call the &#8220;wizard&#8221;?</i></p>

	<p>That used to be my favorite too. I learned it from my uncle when I was a kid. Haven&#8217;t thought of it in years.</p>
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		<title>By: John Emerson</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-167944</link>
		<dc:creator>John Emerson</dc:creator>
		<pubDate>Wed, 09 Aug 2006 21:13:38 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-167944</guid>
		<description>Haven&#039;t read the comments, but my belief is that there are never more than three priorities, and the third priority is there just to make the second priority not feel like such a loser. 

Prioritizing is the choice between #1 and #2. When a new time for making decisions arrives, a new set of priorities will be put together.</description>
		<content:encoded><![CDATA[	<p>Haven&#8217;t read the comments, but my belief is that there are never more than three priorities, and the third priority is there just to make the second priority not feel like such a loser.</p>

	<p>Prioritizing is the choice between #1 and #2. When a new time for making decisions arrives, a new set of priorities will be put together.</p>
 ]]></content:encoded>
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		<title>By: Nash</title>
		<link>http://crookedtimber.org/2006/08/09/two-point-scales/comment-page-1/#comment-167930</link>
		<dc:creator>Nash</dc:creator>
		<pubDate>Wed, 09 Aug 2006 20:02:11 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/2006/08/09/two-point-scales/#comment-167930</guid>
		<description>richard bellamy, are you sure that&#039;s what your friend actually said?  I&#039;m guessing you have added one thing that they didn&#039;t say, because there is a well-known &quot;trick&quot; in which the tester says 
&quot;pick a number from 1 to 4&quot;

&quot;Three&quot; is the response of something over 85% of the subjects tested.

The reason?  The power of verbal suggestion.  In saying &quot;one to four,&quot; we hear &quot;one two four&quot; and most subjects dive for the &quot;safety&quot; of the only number not named in the test: three

Try it on a friend sometime, works like magic.  Don&#039;t even need a card to do it, but the card is a nice touch.  

Speaking of card tricks, has anyone ever had you call the &quot;wizard&quot;?  Far and away the best card trick and the one that most baffles and amazes that I&#039;ve ever performed.</description>
		<content:encoded><![CDATA[	<p>richard bellamy, are you sure that&#8217;s what your friend actually said?  I&#8217;m guessing you have added one thing that they didn&#8217;t say, because there is a well-known &#8220;trick&#8221; in which the tester says<br />
&#8220;pick a number from 1 to 4&#8221;</p>

	<p>&#8220;Three&#8221; is the response of something over 85% of the subjects tested.</p>

	<p>The reason?  The power of verbal suggestion.  In saying &#8220;one to four,&#8221; we hear &#8220;one two four&#8221; and most subjects dive for the &#8220;safety&#8221; of the only number not named in the test: three</p>

	<p>Try it on a friend sometime, works like magic.  Don&#8217;t even need a card to do it, but the card is a nice touch.</p>

	<p>Speaking of card tricks, has anyone ever had you call the &#8220;wizard&#8221;?  Far and away the best card trick and the one that most baffles and amazes that I&#8217;ve ever performed.</p>
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