I really don't want to engage in a donnybrook over the IQ issue.  These points 
have been worked over for at least 50 years.  I just want to add points that do 
not usually come up when the arguments involve people who do not administer IQ 
tests everyday.

1.  We must separate IQ scores from a general concept of intelligence.  They 
are not the same thing but they are often used as if they are.  Comments about 
intelligence may not apply to the IQ score.

2.  Everyone must get down to the level of the tests.  If you don't administer 
these tests to real people, then you are never confronted with the complexity 
that underlies their validity.  You have to ask yourself, what does Block 
Design measure, what does Digit Span measure, what does Vocabulary measure?  
What would be measured by a summary score that essentially averages the scores 
on a specific set of subtests?

3.  If patients with large frontal lobe lesions and the consequent executive 
function syndromes have IQ scores in the normal range, what does this indicate 
concerning the validity of the IQ score?

4.  If patients with bilateral hippocampal lesions and pure memory disorder 
have normal IQ scores then what does this say about the validity of the IQ 
score?

5.  Conventional IQ tests, such as the Wechsler Scales do not allow users to 
assess obviously important intellectual abilities that I think everyone would 
have in their theories of intelligence.

6.  As far as I can tell, the APA commission did not include anyone who 
administers IQ tests on a regular basis, no one who has designed an IQ test and 
no neuropsychologists.  Many aspects of the APA report support the points I 
have made here.  

My general conclusion is that the IQ tests should be considered for the 
validity of the individual tests included in the IQ battery.  Some of these 
tests are useful in measuring cognition, some are not, and many are redundant.  
Averaging them all together in a summary score only makes their interpretation 
confusing.  

All these tests must be redesigned to incorporate models of cognition that we 
should be proud to include in new clinical assessment procedures.  What was the 
cognitive revolution all about, anyway?

Mike Williams

Sent from my iPad

On Dec 22, 2012, at 10:00 PM, "Teaching in the Psychological Sciences (TIPS) 
digest" <[email protected]> wrote:

> Irrelevance

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