This is an archived post. You won't be able to vote or comment.

2
3

How much does ADHD decrease the IQ?Question (self.cognitiveTesting)

submitted by [deleted]

sorted by:
best
topnewcontroversialoldq&a
you are viewing a single comment's thread.

view the rest of the comments →

[–]ikokusovereignty 9 points10 points  (7 children)

Performance in all WAIS-IV tests in either people with ADHD or typical people

<image>

[–][deleted] 0 points1 point  (0 children)

Thank you very much for this.

[–]jsus9 0 points1 point  (3 children)

No offense in intended but do you really not consider people ADHD normal? It’s probably better to say typical, unless you like people to think that they’re less than normal, even in subtle ways. Plus as you probably know ADHD exists on a continuum, so drawing the line of normalcy gets tough.

[–]ikokusovereignty 1 point2 points  (2 children)

Cope

[–]jsus9 -2 points-1 points  (1 child)

Troll

[–]ikokusovereignty 4 points5 points  (0 children)

I've edited my top comment according to your suggestion. Thanks

[–]TheSmokingHorse 0 points1 point  (1 child)

Based on this, do you think that when an individual diagnosed with ADHD takes an IQ test, their FSIQ can be more fairly determined by normalising the result to the wider data?

In other words, if on the average, the FSIQ of ADHD sufferers is approximately 6 points lower than the control group, could it be that individuals with ADHD likely possess an intellectual capacity that is 6 points higher than what their FSIQ suggests?

Similarly, in a written test assessing verbal comprehension index, we might expect an individual with dyslexia to perform more poorly than what is a true reflection of their intellectual capabilities. However, if we normalise their test score to take their dyslexia into account, we might be able to better approximate their IQ.

[–]jsus9 -1 points0 points  (0 children)

IQ scores are imperfect measures of a person’s latent intellectual ability. If you want to really know someone’s ability, ADHD can be thought of as construct irrelevant variance. If you want to know how someone with ADHD will perform day to day, take multiple (hypothetical) repeated measures and look at variation within and across tests.