<p>I took the TRI-52, which is strongly correlated with <a href="https://i.sstatic.net/qniRV.png" rel="nofollow noreferrer">other cognitive ability tests</a>. When I first took it, I was tired, my mind was foggy, and my ADD was acting up -- I got a score of 116. The following day, I took it while well rested &amp; with improved concentration, and got a score of 125. I did not receive any feedback on any of the questions, so I've no idea which questions I got right or wrong; this might mitigate the impacts of the practice effect. Which is a more accurate representation of my score? My first attempt, even though I took it in suboptimal conditions, or my second attempt, which might be susceptible to practice effect?</p>

CC BY-SA 4.0
2020-10-05T16:43:22.453Z
Those scores are probably within the margin of error, which means they are effectively the same.
Bryan Krause
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2020-10-07T01:26:33.640Z
What do those scores mean, in terms of intellectual ability?
omeed
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2020-10-07T02:37:06.523Z
Not much, honestly. IQ tests are only really useful in looking at populations and in diagnosing serious disability. In the middle they aren't very predictive for individuals.
Bryan Krause
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2020-10-23T23:01:52.983Z
Isn't the margin of error between exams supposed to be ~5, not ~9?
omeed
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2020-10-23T23:04:38.633Z
I'll repeat myself: "IQ tests are only really useful in looking at populations and in diagnosing serious disability. In the middle they aren't very predictive for individuals." There isn't a practical meaning of the difference between the scores. It doesn't matter what the specific test-retest reliability is for a given test, that doesn't tell you anything except about the test itself.
Bryan Krause
<iq>
Is practice effect on matrix-based IQ tests largely attributable to question feedback?
omeed
# Is practice effect on matrix-based IQ tests largely attributable to question feedback?

(Asked by: username_0 on 2020-10-05)

I took the TRI-52, which is strongly correlated with [other cognitive ability tests](https://i.sstatic.net/qniRV.png). When I first took it, I was tired, my mind was foggy, and my ADD was acting up -- I got a score of 116. The following day, I took it while well rested & with improved concentration, and got a score of 125. I did not receive any feedback on any of the questions, so I've no idea which questions I got right or wrong; this might mitigate the impacts of the practice effect. Which is a more accurate representation of my score? My first attempt, even though I took it in suboptimal conditions, or my second attempt, which might be susceptible to practice effect?

**Tags:** iq

> **Comments:**
> **username_1**: Those scores are probably within the margin of error, which means they are effectively the same.  
> **username_0**: What do those scores mean, in terms of intellectual ability?  
> **username_1**: Not much, honestly. IQ tests are only really useful in looking at populations and in diagnosing serious disability. In the middle they aren't very predictive for individuals.  
> **username_0**: Isn't the margin of error between exams supposed to be ~5, not ~9?  
> **username_1**: I'll repeat myself: "IQ tests are only really useful in looking at populations and in diagnosing serious disability. In the middle they aren't very predictive for individuals." There isn't a practical meaning of the difference between the scores. It doesn't matter what the specific test-retest reliability is for a given test, that doesn't tell you anything except about the test itself.  

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## 0 answers

