IQ Is Just a Number

Posted on by Astrid

Hi everyone. Today, Sadje asks in her Sunday Poser whether we’ve ever taken an online IQ test. I have, exactly once. I was about eighteen at the time and randomly looking at tests online. I can’t remember the source of the IQ test and I didn’t pay to get the so-called full report, but the thing said I had an IQ of 118.

Like I’ve said a few times, I also got IQ tests as part of various psychological evaluations many times throughout my childhood. The one that is most prominent in my life right now, is the only one in which I was actually given a literal score: 154. The educational psychologist even called me gifted based on it.

I have mentioned many times how this score is probably way above my actual IQ. For starters, I’d had the exact same test a year prior and had memorized most of the questions. Additionally, contrary to common belief and contrary to my care plan I believe, it wasn’t a total IQ score. When testing the IQ of blind people, usually only the verbal part of the IQ scale is administered. There is a non-verbal intelligence test for visually impaired children that the psychologist prior to the one saying I have an IQ of 154 did administer. Unfortunately, she didn’t give any concrete scores and in fact stopped the test midway through because I got so frustrated. As a result, I have no way of proving that my performance IQ is a lot lower than my verbal IQ. But I’m pretty sure it is.

Sadje at one point points out that intelligence isn’t just knowledge, but also the ability to use one’s knowledge sensibly. Particularly with respect to verbal IQ vs. performance IQ, this makes sense. Verbal IQ is mostly related to academic ability and general knowledge. Performance IQ, on the other hand, requires actual insight and practical skill.

Of course, as someone with a (probably) much higher verbal than performance IQ, I can only relate to how this burdens me. I am horribly overestimated because of my eloquent speech. I imagine the opposite might be true for people with a split in IQ scores the other way around.

Lastly, I want to point out that even within a verbal IQ test (and I assume within the performance one too), people can have spiky profiles. My strength is and always has been in arithmetic. Other relatively strong areas at least at one point used to include Number sequences (a test of memory) and Similarities. My biggest weakness is the part called Comprehension, in which you need to answer questions about social or practical situations. I also often scored below-average on the vocabulary subtest.

The IQ test that pointed to my verbal IQ being 154, was administered in 1999. I had my last IQ test in 2017 and it showed my IQ to be roughly 119. With that version of the test, the strict verbal/performance distinction had been abandoned, but it is safe to say this was my verbal IQ. Even though I’m pretty sure I did decline cognitively between 1999 and 2017, I’m adamant that 154 score is utter nonsense.

With respect to Sadje’s point that intelligence isn’t just knowledge, I’m proof that she’s right. I am still said to have an above-average IQ, but I can’t do the most basic self-care tasks without supervision.

IQ Tests and Final Exams and Psychological Assessments, Oh My!

Posted on by Astrid

Hi all! Today, Esther’s weekly writing prompt is “tests”. Oh my! This made me think of so many things. IQ tests: I’ve had half a dozen or more during my life. Final exams: so glad they’re over with and it’s been twenty years since I graduated high school. Psychological assessments: I still have a love-hate relationship with those. And that goes for tests in general, I guess.

After all, as a child, I didn’t mind taking IQ tests. When I was twelve, I got the infamous Wechsler IQ test, well, the verbal part of it, since I’m blind and the performance part isn’t accessible. I got a score of 154, which, according to the psychologist, indicated giftedness. I’m pretty sure there were all sorts of things wrong with that assessment though.

When I was 30, I got another IQ test, Wechsler again but the adult version and now they removed the clear distinction between verbal and performance IQ so the report just said I got “parts” of the test. My overall IQ score had dropped to 119 I believe. That’s still above-average and I’m pretty sure that’s correct. However, I wish there were a performance IQ test for blind people, because I am pretty sure that’d show where my real limits are. Not that I’m proud of being disabled, but I am and if it could be proven on a test, that’d be much better than an ever-changing psychiatric diagnosis.

Final exams. Like I said, I’m glad it’s been twenty years since I graduated high school. My final exams were quite frustrating, as not only was I horribly nervous, but my computer crashed once in the middle of the test. I graduated from what in the UK is called grammar school and honestly I have no clue how I did it. I mean, well, I know, sort of: the same way I “passed” my IQ tests, ie. being a pretty above-average memorizer. Too bad that a good memory and decent academic skills don’t get me far in life. It takes more than test-taking abilities to be successful, after all.

Questionnaires and Personality Tests for Self-Improvement and Diagnosis #AtoZChallenge

Posted on by Astrid

Hi everyone. For my letter Q post in the #AtoZChallenge, I’d like to talk about personality tests and questionnaires. How valid are self-report questionnaires for personal growth? Do they have any validity in diagnosis?

The short answer to these questions is that it depends. After all, many people especially those with some knowledge of the thing being tested, will answer in such a way that they’ll get the results they want or expect. Even people who don’t know how the test works, may distort their answers because they think the test works in a certain way or because they think others want them to answer in a certain way. Or sometimes even because they don’t understand the questions.

For example, when I was eleven, I was tested with this weird sentence completion test that included open-ended questions. An example I remember clearly was the psychologist asking me “When I can’t sleep, I…”. I replied “I’ll try to sleep”. I had absolutely no idea what to say, not because I thought the psychologist wanted a particular answer but because the question was far too open-ended. Similarly, my lack of emotional awareness at the time often made me choose the middle option on rating scales. This was judged to be manipulativeness, but it wasn’t.

Like I shared before, many personality tests include a “liar scale” or validity subtest. An example on the Big Five test I got in college is “I always feel equally good”. I honestly answered with “strongly disagree” and totally thought it’d make me score high on neuroticism. Instead, that particular question and others I answered honestly got me to score above-average on the validity scale. That isn’t to say I didn’t score high on neuroticism though.

I don’t personally think it matters that many self-report questionnaires can lead to a strong confirmation bias, especially if you’re using the test for personal development only. That is, if you want to hear that you’re great, you will always be able to find validation for that. Whether lying on self-report questionnaires will help you on your journey, is another thing, but if you aren’t consciously manipulating the test, chances are there’s some truth to the result anyway. I don’t recommend relying on a test alone to determine anything about yourself, but to also always do your own research. Similarly, in clinical settings, while self-report questionnaires are somewhat useful, professionals also need to rely on observations.