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University of Cambridge Cognitive Ability Test

(planning.e-psychometrics.com)
101 points indigodaddy | 6 comments | | HN request time: 0.437s | source | bottom
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hirvi74 ◴[] No.45077200[source]
I still do not understand why we are wasting scientific resources trying to stack rank humans on arbitrarily defined concepts like cognitive ability or intelligence.

After over a century of psychometric research in cognitive abilities and intelligence, what do we have to show for it? Whose life has actually improved for the better? Have the benefits from such research, if any, outweighed the amount of harm that has already been caused?

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sctb ◴[] No.45077278[source]
In clinical contexts, cognitive tests are used for diagnostic purposes. They are important to determine exactly what sort of ongoing care and support the person needs in order to thrive. In these sorts of contexts, it's not hard to imagine the utility in knowing someone's cognitive ability. It's also not arbitrary—a good cognitive test will give insight into the ability to perform everyday cognitive tasks.
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1. hirvi74 ◴[] No.45077916[source]
> In clinical contexts, cognitive tests are used for diagnostic purposes.

I'm not certain I agree. If anything, cognitive tests can be used as a single point of datum, but to my knowledge, no condition can be diagnosed via a cognitive test alone. Of course, I could be mistaken. I wish administered the WAIS-IV on top of many other tests for an ADHD diagnosis.

> They are important to determine exactly what sort of ongoing care and support the person needs in order to thrive.

Interesting, upon my receiving my diagnosis, I was not provided any support nor would I declare I have thrived. Obviously, n = 1. I was merely given the social approval to take pharma-grade speed and thrown back to the wolves.

> It's also not arbitrary—a good cognitive test will give insight into the ability to perform everyday cognitive tasks.

That's the part I believe I am clearly missing. These tests provide insight into the ability to perform everyday cognitive tasks better than one's history of already performing various tasks? It's not as if someone with a perfect SAT score takes an IQ tests and then is met with the sudden reality that they are mentally disabled nor vice versa.

What do these tests tell us that we already do not know? If I want to find someone with high mathematical abilities, then I would administer a math exam. Reading? Reading exam. Chess? Chess tournament. And so on...

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2. ACow_Adonis ◴[] No.45077995[source]
Honestly, imo clinically in aggregate the actually score itself provides very little information beyond what a 5 minute conversation would achieve, and the result could be better thought as bordering on 5-6 level categorical variable rather than a gradient due to their biases and inherent individual patient variance on performance and test taking context.

The sub-sections of things like the WAIS can be of some value for identifying specific abnormalities or deficiencies, but as you said, is probably of more value clinically to split them out into separate tests/activities rather than to group them all together into an aggregate score. It's a bit like judging athletic ability and skill by BMI and fat percentage rather than just playing an opponent in tennis to find out if they're a good tennis player.

3. tbrownaw ◴[] No.45078520[source]
> I'm not certain I agree. If anything, cognitive tests can be used as a single point of datum, but to my knowledge, no condition can be diagnosed via a cognitive test alone.

I did not read the comment you're replying to as saying otherwise.

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4. hirvi74 ◴[] No.45078566[source]
Maybe my IQ is too low to understand them?
5. antonvs ◴[] No.45083270[source]
> Interesting, upon my receiving my diagnosis, I was not provided any support nor would I declare I have thrived. Obviously, n = 1. I was merely given the social approval to take pharma-grade speed and thrown back to the wolves.

United States? It's not quite like that everywhere.

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6. hirvi74 ◴[] No.45087831[source]
Yes, United States. I should add that I wasn't diagnosed until I was 22.5 years old.

Growing up in the South East, USA, there were no such things as Autism, ADHD, etc.. Things have gotten better, I suppose, but I'm in my early 30s, so this wasn't exactly a long time ago either. You know how schools have 'gifted and talented' programs? I was in the 'cursed and talentless' program.