I was googling autism and executive functioning and came across an interesting research paper that was evaluating the diagnostic suitability of various executive functioning tests in help evaluating autism/aspergers (at http://www.iapsych.com/articles/hill2006.pdf). Here's the important conclusion:
Quote:
Overall, there were no differences between
those with and without AS on all ‘classical’ tests of executive function, once difficulties in psychomotor processing and
visual search had been accounted for (cf. group difference on
trails A and B). However, surprisingly large differences were
found on other, newer tests of executive function, in particular on the Six Elements task of the BADS and on the Hayling
test. These tests were sensitive not only at a group level but also
on a case-by-case basis and they correlated with measures of
autistic behaviour
So, it looks like the Six Elements task of the BADS and on the Hayling
test are *the* tests to take for evaluating executive functioning for evaluating the likelihood of possessing autism. I wonder what those tests are like (I wonder if they're similar to this one?)?
From the paper:
Quote:
Six Elements test. Planning, organisation and monitoring of behaviour are
tested using this multi-component task. Participants must carry out six separate tasks (two dictation, two arithmetic and two picture-naming tasks), within
10 min, whilst obeying a simple rule (do not carry out two of the same tasks
consecutively). Whilst participants are not expected to complete each task,
they must carry out at least part of all six. It is not important how well the
participant performs the individual component tasks. Performance is measured as the number of tasks attempted, the number of rule breaks, and the
maximum time spent on any individual subtask.
1.1.1.2. Hayling test (Burgess & Shallice, 1997). Response initiation and suppression are measured by this test which comprises two parts. In the first part, 15
incomplete sentences are read aloud and must be completed by a word that makes
the sentence meaningful (e.g. ‘he posted the letter without a . . . stamp’). In the
second part, 15 further sentences are presented which have to be completed by
a word that does not fit into the context of the sentence (e.g. ‘the captain wanted
to stay with the sinking . . . toaster’). Four scores were of interest—time taken
part one (response initiation), time taken part two, errors part two (response
suppression, strategy formation) and overall efficiency score.
Hmmm... I wonder how I could get a hold of these tests? Or, possibly, if I learn a sufficiently great amount of information about these tests, I might be able to create an online clone and we could then norm that on AS and NT individuals and then the internet will then have one, or two, more tests available for the purposes of effectively diagnosing the likelihood of having autism! Oh gee, the possibility excites me.
Btw, I posted an "NT thread" for score comparison at
http://personalitycafe.com/cognitive-fu ... t-t-f.html . It turns out 2 out of the 3 NTs, so far, are in the average range while the last guy (At this point in time) did "really really badly" on the switching attention part (He didn't want to divulge an exact number.). So, even though the number of tested NTs are small at this point, it appears there's a definite difference between the "normal"/"low score" ratio between NTs and "official AS individuals" on the switching attention task, suggesting that an executive functioning test would be useful for diagnosing autism/aspergers. I'm not sure how good this particular test is compared to other executive functioning tests out there.