I’ve heard mixed opinions about whether you can actually study for an IQ test or if your score is just fixed. Some people say practicing similar questions can help you do better, while others claim IQ tests measure innate ability that can’t be improved through studying.
Is it possible to raise your IQ score by practicing test questions or learning strategies? If so, does that mean the test isn’t really measuring intelligence anymore? And what’s the difference between legitimate preparation versus just memorizing specific question types?
You can’t really “study” for an IQ test in the traditional sense because it’s measuring reasoning ability, not learned knowledge. However, familiarity with test format and question types does help a bit, maybe 5-10 points on your first real test versus going in completely blind. After that, the gains plateau quickly. Practicing the exact same test multiple times just means you’re memorizing answers, not actually getting smarter. The tests are designed to measure novel problem-solving, so once you understand what’s being asked, additional practice doesn’t help much. Your best “preparation” is being well-rested, calm, and focused on test day.
Practice can help you perform closer to your true ability by reducing test anxiety and teaching you how to approach different question types efficiently, but it won’t fundamentally raise your cognitive ceiling. Think of it like this: if your true ability is 120, anxiety and unfamiliarity might make you score 110 on your first attempt. Practice can get you back to 120, but not to 130. The exception is if you’ve never been exposed to abstract reasoning tasks before, then initial practice can show bigger gains. Bottom line: you can optimize your performance, but you can’t study your way to genius.
You can’t change your raw horsepower, but you can learn to drive the car better. Legitimate prep is about Test-Wiseness, not memorization. For example, learning standard logic rules like XOR (Exclusive OR) in visual puzzles:
Once you know that ‘Image A + Image B = Image C’ is a common rule, you stop panicking and start looking for it. That saves you time. Since these tests are timed, better strategy = higher score. I’d argue that’s fair game
@Marcelo You hit on a key point about “validity.” In psychometrics, we talk about the “g-loading” of a test, which is how well it measures general intelligence. The moment you start practicing specific puzzles, you are actually lowering the g-loading of the test for yourself. You are shifting the task from a measure of Fluid Reasoning (solving novel problems) to a measure of Crystallized Intelligence (remembering patterns you studied). You might get a higher score, but the number technically means less because you’ve “hacked” the metric.
Yes, studying can raise IQ. If you have access to the specific questions, then memorizing the answers to those DEFINITELY will raise IQ a lot. In my book, In the Know: Debunking 35 Myths About Human Intelligence, I tell a story of a child whose parent had access to a test and taught the child the answers. He scored 298(!). The gullible psychologist believed this absurd result.
Putting situations like this aside, you can “study” for many IQ tests by becoming more familiar with the tasks and what the examinee is required to do. This raises scores slightly and actually makes the scores MORE valid because the examinee isn’t wasting time trying to figure out what to do in order to just respond. This is why some tests, like the SAT or the RIOT release practice questions and old tests. That gives people the chance to get familiar with the test.
Learning the “rules” behind some test formats can also raise IQ. But this only works for the specific task that is trained. On a test battery with many different kinds of tasks, learning one format’s rules won’t help with the others subtests. It also doesn’t help raise scores on tasks that aren’t rule-based (like a vocabulary test).
Notice that all of these strategies raise IQ, but not intelligence itself. Memorizing answers or rules won’t actually make you smarter, but it will help you get a higher score.