IQ test without paying: which scores stay free and which do not

0 The short answer

A few IQ tests give a score without any payment, among them the Mensa Norway online test of 35 visual pattern puzzles and the OpenPsychometrics Full Scale IQ Test, but a free score is an indication with no clearly described reference group, and the tests that charge usually show the price after you have answered, so the useful check is to find the price, the contents of the free result and the data requested before the first question. The ACIS free trial needs no card but does ask for an email address, and started from the Full Scale form it opens five subtests (Digit Span, Alphanumeric Sequencing, Visual Sequence, Coding and Symbol Search) with scaled scores and percentiles but no Full Scale IQ. The full report is paid and one time: Quick is 25 dollars for 6 subtests in about 45 minutes, Optimized is 35 dollars for 13 subtests in about 110 minutes, and Full Scale is 59 dollars for all 20 subtests in about 175 minutes, with prices read on November 4, 2026, and liable to change again. The decisive limit is that a number means only as much as the group it is compared with, and a free result seldom says who that group is.

1 What Does "Without Paying" Actually Mean?

An IQ test can be free in at least four different ways, and the search words hide which one a page offers: free to start, free score, free report, and free of any recurring charge. A page that is free to start lets you answer questions without a payment screen. A free score gives you a number at the end. A free report gives you the breakdown that explains the number. Free of recurring charge means that nothing renews if you do nothing. The four are independent of each other. A search such as "iq test without paying for results" asks for the second and the third, and a page that delivers only the first can still look like a match.

Searches that add "or email" point to a second currency, contact details. Other free tests ask for an email address so the result can be delivered, and some have asked for a phone number. An email address is a modest price when the page says how it will be used, and a larger one when it is collected as a lead. The Federal Trade Commission staff report Bringing Dark Patterns to Light, published in September 2022, describes a related case: a lead generator that, according to the complaint, used websites styled to look like official sources to collect personal information and then sold it to schools as marketing leads. The report does not mention IQ tests, and nothing here suggests that any IQ site behaves that way. The case shows only why the question "what happens to my email address" belongs on the checklist beside "what does the report cost".

The third currency is time, and it is the one that makes late pricing work. Someone who has spent twenty minutes answering questions has invested real effort, and the result is the only thing left to collect. That sequence, not the price itself, is what separates a fair free test from an unfair one.

There is also a professional norm for what a test taker should be told. The Standards for Educational and Psychological Testing, the joint document of the American Educational Research Association, the American Psychological Association and the National Council on Measurement in Education, says in its 2014 edition (Standard 8.2) that test takers should be provided in advance with as much information as is consistent with valid responses about the test, the testing process, the intended use, the scoring criteria, the testing policy and confidentiality protection. The comment to that standard adds that test takers should usually be told "whether and when they will have access to their results". A page that withholds when and how you will see the result until after the last question falls short of that principle, whatever its price.

2 Which Kinds of IQ Test Give a Result Without Payment?

Six kinds of test sit behind the phrase "IQ test without paying", and only some of them hand over a score with no strings: national and international Mensa online tests, research instruments, free tiers of commercial tests, free trials of paid batteries, tests that show their price after the last question, and supervised exams that were never free. The table sorts the real options by what they measure, who the score is compared with, who watches, how long it takes, what it costs on the date read, and what you receive. Prices come from pages opened on November 4, 2026, except where the row says otherwise, and they change.

The Mensa and OpenPsychometrics tests state their limits on their own pages, which is the fair way to be free, and the commercial free tier is fair when its page lists the professional price beside the free test, as the one read for this page does. The trouble sits with pages that offer a free test, present the price only on the results screen and, in some cases, attach a subscription to a small first payment. The page on paid IQ tests sets out the billing models, and the page on free against validated tests covers the quality question, so this page stays with the question of when the charge becomes visible.

3 Why Does the Price Sometimes Appear After the Last Question?

Late disclosure of a cost is a documented selling pattern with a name, drip pricing, and the regulators who studied it describe the sequence an unwary test taker meets: effort first, price last. The FTC staff report defines drip pricing as advertising only part of a product's total price to draw consumers in and not mentioning other mandatory charges until late in the buying process. It says the practice interferes with comparison shopping and pushes consumers into paying after they have already spent significant time choosing and finalizing a purchase. Panelists at the FTC workshop, the report says, described how consumers feel committed to a purchase by the time they reach the checkout screen.

The report also cites the size of the effect in one study of a ticketing website. Users who were not shown the fees upfront spent about 20 percent more money and were 14 percent more likely to complete the purchase than users who were. Those two figures belong to that study and to ticket sales, not to IQ tests, and nobody has measured the equivalent for a results page. The mechanism is the transferable part. Once a person has finished a test, the result has a value to them that it did not have before they started, and a price shown at that moment is weighed differently from the same price shown beforehand. That reading is our inference from the report, not a finding of the report.

The free trial is the second pattern. The same report describes an experiment presented by a workshop panelist. One group was told it would receive a one month free trial followed by monthly charges if it did not cancel. A second group was told only that terms and conditions applied, with the automatic monthly charge in small gray type at the bottom of the page. More than twice as many consumers in the second group accepted the offer. The report then summarizes the Restore Online Shoppers' Confidence Act, which bars charging for online sales that use a negative option feature unless the seller clearly discloses all material terms before obtaining billing information, obtains express informed consent, and provides a simple way to stop recurring charges. A test that begins as a free trial and renews into a plan sits under those three conditions, and the page on cancelling an IQ test subscription takes up the steps after the fact.

An older and IQ specific record exists. In a release dated March 27, 2009, the New Zealand Commerce Commission advised consumers who take online IQ and compatibility quizzes to check the fine print. In the scenario it described, the quiz asks for a mobile phone number to send the result, then a PIN, and the person is treated as having subscribed to a text service sending three to five texts a week at 3 to 5 dollars each, according to the release. The Commission said it had received complaints from people who felt misled, and it noted that on the sites it had examined the terms were clearly displayed. Its advice was to read the terms and conditions before entering any details. The release is seventeen years old and concerns phone billing, but it is the only regulator page found for this article that names IQ tests, and its lesson has not aged: a request for a phone number or a card at the end of a free test is a signal to stop and read.

None of this proves that a given test is deceptive. Many tests that charge for a report say so on the first screen, and some show a free score and sell the extras once, with no renewal. The point of the evidence is narrower. Price visibility before the first question is a design choice, the choice affects behavior, and a reader can test for it.

4 How Can You Tell Before You Start That a Test Will Charge You?

Seven checks, all possible before the first question and most possible in two minutes, tell a test that is free from a test that is free until the last screen. None needs insider knowledge, and none requires trusting the test's own claim about itself. The table pairs each check with what a clear page shows and with what should make you pause.

Check 1 is the cheapest and the most informative. The tests read for this page that were free in the strict sense, the Mensa Norway test and the OpenPsychometrics test, put their limits on the page where you start. The commercial free tier read on November 4, 2026 lists its professional versions on the same page as its free tests: a culture fair version with 25 questions and a classical version with 44 questions, each at 12.99 dollars. A reader can decide from it, in advance, whether the free result is enough.

Check 2 matters because "result" is the most elastic word in the genre. A free result can be an IQ estimate, a count of correct answers, a percentile or a bar chart. The commercial free tier says plainly that a free test gives "an IQ score estimate or the number of questions you answered correctly", and that is a fair description, because it tells the reader which of the two to expect. The Mensa IQ Challenge page adds a detail worth knowing: a score under 100 gets a message saying the score lies outside the range the test can currently measure. A free result can therefore be truncated by design, and the range is something to look for on the page.

Check 5 is where a free test and a validated one separate, and the sections that follow return to it. Check 7 matters more for free tests than for paid ones, because free tests often exist partly to gather data. The OpenPsychometrics page states that responses "may be recorded and anonymously used for research or otherwise distributed", and the Mensa Norway page states that it does not collect personally identifiable information and does not use tracking. Both statements are useful, and neither is a reason to avoid the test. They are reasons to know before you start. The page on tests that need no account covers that angle in more depth, and the page on instant IQ results explains why a fast result and a stated norm are separate questions.

5 What Does a Genuinely Free IQ Test Give You?

A genuinely free test gives you practice at a real kind of task and a number that is an indication, and it does not give you a known reference group, a margin of error, or a result that anyone else is obliged to accept. Four free sources are worth separating, because they are different things under the same word.

The first is the national Mensa online test. On the test page read on November 4, 2026, Mensa Norway describes 35 puzzles in the form of visual patterns to be solved within a 25 minute limit, asks the taker to choose an age range (16 to 17, 18 to 50, 51 to 60 or 61 and over) and states an IQ score "between 85 and 145, where 100 is the population average". It adds that the test "is not a substitute for professional intelligence tests". The organization's own online test page labels the test "gratis". The format is a figural reasoning task, so it samples one ability, and the page publishes no reliability or norm table. The band also means that nothing below 85 or above 145 is reported, so the test cannot separate people outside that range. The review of the Mensa Norway test reads these limits in detail.

The second is Mensa International's IQ Challenge, which the page labels free, describes as 35 puzzles in 25 minutes, and states is provided for entertainment purposes only. The same page says the score will not qualify you for Mensa. Both Mensa pages are honest about their purpose, and the honest reading is that a free puzzle test from a society is a taste of the real exam and not a stand-in for it.

The third is the OpenPsychometrics Full Scale IQ Test. Its page says it was designed around a cap of 20 minutes, that the average person takes between 10 and 15 minutes, that it measures IQ with an overall score and component scores for Short-Term Memory, Reasoning and Verbal, and that scores are set so that the average is 100. It does not describe the sample used to set the scores. The page opens with the warning "Every on-line IQ test is bad", calls the test "not a replacement for a real IQ test", and says it "will only be valid the first time you take it". The last point is good advice for any unsupervised test, since practice and memory change a second attempt. The OpenPsychometrics review examines the accuracy question, which this page leaves to it.

The fourth is the research item pool. David Condon and William Revelle introduced the International Cognitive Ability Resource in a 2014 paper in the journal Intelligence, titled "The international cognitive ability resource: Development and initial validation of a public-domain measure". The project's own page at TU Dortmund says the materials are intended for academic use under a Scientific Use License and that no norms exist, and, on the question of inferring an individual's IQ, it advises against it: "Since there are no norms, you cannot infer an individual's IQ." The ICAR is a respectable scientific tool, available to researchers under that license, and it is a good example of a point this page keeps returning to: free and rigorous can both be true while a personal IQ score remains impossible, because the missing piece is the reference group and not the items. The ICAR page on this site sets out what the project does and does not claim.

These four free sources have one thing in common. Each states its limit in its own words, and a reader who wants an IQ figure can get one from the first three, provided they treat it as a rough indication of performance on one kind of task.

6 What Does a Free IQ Quiz Actually Measure, in CHC Terms?

A free quiz measures whatever its tasks sample, usually one or two abilities of the Cattell-Horn-Carroll model, and the label IQ belongs properly to a battery that samples several. The CHC model organizes cognitive abilities into broad abilities such as fluid reasoning (Gf), comprehension-knowledge (Gc), quantitative knowledge (Gq), visual processing (Gv), working memory capacity (Gwm) and processing speed (Gs), each with narrower abilities beneath it. A test that samples only one of them can be informative about that ability. It cannot stand for the whole.

The free Mensa tests and the figural part of many free quizzes are fluid reasoning tasks. A person studies a pattern, infers the rule that governs it and picks the element that completes it, which is induction in CHC terms. The Mensa Norway page reads as a test of that single skill, and the review of it on this site describes it as inductive reasoning on visual patterns under time pressure. ACIS's page on Matrix Reasoning describes the same family of task, with the pattern studied, the rule inferred and the missing element chosen. Nothing in that format samples vocabulary, arithmetic, memory or speed, which is why a high score on a pattern test and a score on a full battery can differ.

A free quiz that mixes in word and number items shifts the balance. Word knowledge and verbal reasoning belong to Gc, and arithmetic belongs to Gq. Both depend more on schooling and language exposure than pattern tasks do, and the ACIS technical manual says that verbal and knowledge tasks are affected by English proficiency and educational exposure. A free quiz built from a handful of such items can therefore be strongly influenced by the language a person grew up with.

The five subtests that the ACIS free trial opens belong to two other broad abilities, and a reader should know exactly what they sample. Three belong to working memory. Digit Span measures immediate auditory-verbal storage and, in more demanding versions, active manipulation of ordered material. Alphanumeric Sequencing asks a person to hold a mixed stream of letters and numbers, separate the two classes and reorder each according to a rule. Visual Sequence measures temporary storage for ordered visual or spatial information. Two belong to processing speed. Coding asks for quick conversion of items through a symbol key, and Symbol Search asks for rapid visual comparison and a quick discrimination. The page on coding says it is usually read together with symbol search rather than alone, because speed, attention, motor fluency and comfort with timed performance can all matter at once.

So the free trial samples working memory and processing speed and does not sample reasoning, verbal comprehension, quantitative reasoning or visual spatial ability. That is a plain description and not a flaw. It is also the reason the trial does not return a Full Scale IQ: a number that claims to summarize general ability needs tasks from across the domains, and the trial opens none from four of the six.

7 How Do You Read a Free Score Responsibly?

A free score is best read as a position on one task in a group you may not know, with an unknown margin of error, and each of those three parts can be checked against the page that produced it. The first is the scale. Wechsler type IQ scores run on a standard scale with a mean of 100 and a standard deviation of 15, and a score of 130 sits two standard deviations above the mean. Our arithmetic on the normal curve puts that at about the 98th percentile, which is the neighborhood of the level American Mensa describes on its testing page, where a qualifying score means having tested "at, or above, 98 percent of the general population". The page states a percentile and not an IQ figure, so the match to 130 is our arithmetic. The page on how IQ scores are normed covers the scale, and the page that separates IQ scores from percentiles explains why the two cannot be averaged or swapped without conversion. On ACIS reports, scaled subtest scores run from 1 to 19 with a mean of 10 and a standard deviation of 3.

The second part is the reference group. The Standards for Educational and Psychological Testing say in Standard 5.8 that norms, if used, "should refer to clearly described populations". The same chapter explains why: the validity of a norm referenced interpretation depends in part on the appropriateness of the reference group, and norms based on a sample that is not representative can mislead. A free test that reports an IQ without naming its group is asking you to take the label on trust. The tests read for this page differ on exactly this point. The commercial free tier says its classical test compares you with "hundreds of thousands of serious test takers", which names a group, though not a described population. The OpenPsychometrics page says scores are set so that the average is 100 and does not describe the sample. The ICAR project says there are no norms at all. The Mensa pages give a range and no table.

The third part is precision. Any score is an estimate, and the interval around it, usually reported at 95 percent confidence, says how far the number could move on a retest or a different set of items. The Standards, in their chapter on reliability and precision, state that if an assessment is shortened, for example by decreasing the number of items or tasks, reliability is likely to decrease, and that lengthening it with comparable tasks is likely to increase reliability. A 35 puzzle test of one ability is short in that sense, and its page publishes no interval. A battery of many subtests across several domains is longer and, for that reason, can offer a more precise composite. The page on reliability and validity explains the terms. When a result page shows a single number and no band, the safest reading is a range wider than the number suggests.

8 What Does the ACIS Free Trial Give You, and Where Does It Stop?

The ACIS free trial gives you real subtests with scaled scores and percentiles, needs no card but does ask for an email address, and stops short of a Full Scale IQ, which belongs to the paid forms. The trial is free in the first sense of this page and the second, free to start and free to see a score, and it is not a free report in the third sense. Stating the boundary plainly is part of what this page promises.

Started from the Full Scale form, the trial opens five subtests: Digit Span, Alphanumeric Sequencing, Visual Sequence, Coding and Symbol Search, read on the published site on November 4, 2026. For each finished subtest the trial shows a scaled score and a percentile. It shows an index score only when the full set of subtests for that index is complete, and it does not give a Full Scale IQ. By the battery's own listing, the three working memory subtests form the working memory index and the two processing speed subtests form the processing speed index, which means the five trial subtests are the complete sets for those two indices and for no others. The free trial page also mentions composites that become available when all of their subtests are available. The technical manual describes the cognitive proficiency composite as one that "combines working memory and processing speed as cognitive proficiency", which is built from the same two groups. The manual is the place to read each composite's definition.

Three conditions come with the trial. The site allows one free trial per person and refuses a second trial from the same email address or the same browser. The trial asks for an email address and no card. And finished trial subtests are kept if the person later unlocks a form that includes them, so a reader who tries the trial and then buys does not repeat those subtests. Digit Span and Alphanumeric Sequencing present their items as audio, so they need working sound.

What the trial does not give is a profile of reasoning, verbal ability, quantitative ability or visual spatial ability, and no Full Scale IQ. Those come only with a paid form that includes the relevant subtests, and the page on the ACIS free start describes the same boundary. Treating the trial as an honest sample of two domains is the right frame. It is a way to see how the test feels, what a scaled score and a percentile look like on a real report, and whether the format suits you, before you decide on any payment.

9 What Does a Paid Report Add That a Free Result Cannot?

A paid report adds coverage across domains, a Full Scale IQ with its confidence interval, indices and percentiles on a stated adult reference group, and documentation you can check, and it does not add a credential that any institution will accept. The question is what the money buys, and it is easy to answer by listing the differences from the free options above.

First, coverage. The ACIS battery has 20 subtests in six CHC domains, reported as a Full Scale IQ and six primary indices: verbal comprehension, fluid reasoning, quantitative reasoning, visual spatial, working memory and processing speed. Quick covers 6 subtests in 3 domains in about 45 minutes. Optimized covers 13 subtests in 5 domains in about 110 minutes. The Full Scale form covers all 20 in about 175 minutes, and seven subtests are only in that form: Information, Arithmetic, Mathematical Achievement, Visual Number Series, Complex Relations, Visual Puzzles and Visual Sequence. Every form reports a Full Scale IQ with its 95 percent confidence interval. Breaks are allowed, progress is saved between subtests, and a purchase gives 30 days to finish.

Second, price and terms. Prices were read on November 4, 2026, and can change again: Quick 25 dollars, Optimized 35 dollars, Full Scale 59 dollars, each one time with no subscription. The Custom Test is 10 dollars per subtest; any domain you complete returns its full index score and every subtest returns its scaled score, but the Full Scale IQ needs the Full Scale battery, and from six subtests the Full Scale form costs less (six Custom subtests cost 60 dollars, the Full Scale form 59). The guarantee on the site reads: "Full refund within 5 days if the report does not deliver the features described at checkout or a technical issue prevents you from accessing your results." That is a conditional refund and not an unconditional money back guarantee, and this page does not call it one. The page on the cheapest IQ test owns the price comparison.

Third, what the report looks like. An example report is open to anyone before payment, and the page on an IQ test report example walks through what a ten page report contains and why a single number is not the finding. The honest limit applies to the paid report as much as to the free one: the page on IQ test certificates explains why no institution accepts one in place of a supervised result, and the same holds for an ACIS report. A paid online report is a better-documented estimate. It is not a credential.

Fourth, documentation. The technical manual is where ACIS publishes how its scores are built and reported, and a buyer should read it before paying. Whether a paid test is worth buying turns on that document and on the reader's purpose, and not on the existence of a price.

10 Which Route Fits Your Reason for Wanting a Score?

The right way to take an IQ test without paying depends on what the number is for, because a free puzzle, a free trial, a paid online battery and a supervised exam answer different questions. The table matches common reasons to a starting point, and the notes after it explain the cases that cause the most confusion.

For curiosity, the free options above are reasonable. The page on IQ tests for adults lays out the choice for an adult who wants an estimate and not a credential, and the ranking of online IQ tests compares them by quality and not by price.

For a society, the supervised exam is a separate route. The American Mensa testing page read on November 4, 2026 lists Local Group testing, proctored by volunteers, at 60 dollars and private testing at approved facilities at 99 dollars, says that a qualifying score means having tested at or above the 98th percentile, and says that for either test it cannot provide a detailed report with scores, percentile ranks or an IQ score. Discounts may appear at checkout, and only the regular prices are given here. That is the main reason a reader might want an adult normed estimate before paying: the exam answers a yes or no question and returns no score. No online result, free or paid, substitutes for it, and the page on where to take an IQ test lists every route, in person and online.

Forum advice is the third route, and it deserves caution. A search that adds "reddit" asks for other people's recommendations, and each recommendation is a claim about a test, not a measurement of it. The sibling page that checks Reddit's IQ test recommendations applies a checklist to them. The sibling page on whether an IQ test is legitimate and the page on how smart you are as a test result approach the same decision from the side of trust and of meaning, and the seven checks earlier in this article are a starting point for both.

11 What Does a Fair Unsupervised Session Need, and What Do You Hand Over?

A fair unsupervised session needs a quiet room, a working device and, for some subtests, working sound, and it costs you whatever personal data the page collects, which should be stated before you start. Because no examiner watches, the conditions are yours to set. The APA Guidelines for Psychological Assessment and Evaluation, approved in March 2020, say in their guideline on normative comparison and standardized administration that the validity of responses can be compromised when standardization is not followed, which for an online test means the instructions, timing and conditions the page prescribes.

Four practical conditions follow. First, time: the Mensa Norway test has a 25 minute limit for 35 puzzles and the OpenPsychometrics test was designed around a cap of 20 minutes, so a free test is usually one sitting, and the sitting should be uninterrupted. Second, sound: Digit Span, Alphanumeric Sequencing and Arithmetic on ACIS present their items as audio and need working sound. Third, breaks: ACIS allows breaks, saves progress between subtests and gives 30 days to complete a purchased form, which suits a long battery, while a free test with a 20 or 25 minute limit is built for one sitting. Fourth, first attempts: the OpenPsychometrics page says its test is valid only the first time, and the same holds for any test whose answers you have seen or studied. A result on a test you rehearsed measures rehearsal as well as ability.

Data is the other cost. The Standards open their chapter on test takers' rights with the statement in Standard 8.0 that test takers have the right to protection of their personally identifiable score results from unauthorized access, use or disclosure. In practice, that means asking three questions before you start. What does the page collect, such as an email address, a phone number or demographic fields? Is the result stored, and for how long? Are responses used for research or shared? The Mensa Norway page, read on November 4, 2026, says it does not collect personally identifiable information and does not use tracking. The OpenPsychometrics page says responses may be recorded and used anonymously for research. The ACIS trial asks for an email address and refuses a second trial from the same address or browser. A reader can decide among these with the facts.

12 Where ACIS Sits, and What a Buyer Should Do

ACIS sells a paid assessment, so read this section as a disclosure: the free trial is real and limited, the full result is paid, and the test is online, unsupervised, in English and not a clinical or admission instrument. The site states its own limit in these words: ACIS "is not intended for clinical diagnosis, hiring decisions, accommodation determinations or admission to high IQ societies", as read on the ACIS page for research on November 4, 2026. It follows that an ACIS result will not answer a diagnostic question, will not satisfy an employer or a school that asks for a formal assessment, and will not be accepted by Mensa or any other society. English proficiency and educational exposure also affect verbal and knowledge subtests, according to the technical manual.

The documents that govern how scores should be read point the same way. The Standards for Educational and Psychological Testing (AERA, APA and NCME, 2014) ask that norms refer to clearly described populations (Standard 5.8), that test takers be told in advance about the test, its use and when they will have access to the results (Standard 8.2), and note that shortening an assessment is likely to lower its reliability. The APA Guidelines for Psychological Assessment and Evaluation (2020) say in Guideline 6 that psychologists should select tools that demonstrate sufficient validity evidence for their uses and sufficient score reliability, and advise reading the publisher's technical manual and reviewing the standardization sample before choosing an instrument. Those documents address professionals, but the logic applies to any buyer: ask which group the score is compared with, how precise it is, and what it may be used for. The ACIS technical manual is the place to check those answers for ACIS, and this page quotes no figure from it.

What a buyer should do is short. Run the seven checks on any test before the first question. If you want a free taste, use one of the free sources above and treat its number as an indication. If you want to see an adult normed battery working, start the ACIS free trial, which needs no card and asks for an email address, and read the example reports before you decide on a form. If you decide to pay, choose the form that matches your question: Quick, Optimized or Full Scale as one time purchases, or the Custom Test at 10 dollars per subtest for chosen subtests, all at prices read on November 4, 2026, which can change. If the report does not deliver the features described at checkout, the guarantee quoted earlier applies, in its conditional form. And if your question is diagnostic, educational or about admission, take it to a licensed psychologist or to the society's own supervised exam, not to any online test.

13 Sources Behind This Page

Every figure above is traceable to one of the following, each linked at the point of use, with pages read on November 4, 2026 and prices that can change. Figures marked as our arithmetic, such as the 98th percentile match to an IQ of 130, are not attributed to any source.

• American Educational Research Association, American Psychological Association and National Council on Measurement in Education. Standards for Educational and Psychological Testing. American Educational Research Association, 2014. Standards 5.8, 8.0 and 8.2 and the chapter on reliability and precision.
• American Psychological Association, APA Task Force on Psychological Assessment and Evaluation Guidelines. APA Guidelines for Psychological Assessment and Evaluation. American Psychological Association, approved March 2020. Guidelines 6 and 8.
• Federal Trade Commission staff. Bringing Dark Patterns to Light. Staff report, September 2022.
• New Zealand Commerce Commission. Raise your IQ by being an informed consumer. Media release, March 27, 2009.
• Mensa Norway. IQ Test Made by Mensa Norway. Test page, read November 4, 2026.
• Mensa Norway. Online test page. Read November 4, 2026.
• Mensa International. Mensa IQ Challenge. Read November 4, 2026.
• American Mensa. Testing page. Local Group and private testing fees, read November 4, 2026.
• OpenPsychometrics. Full Scale IQ Test. Test page, read November 4, 2026.
• Condon D, Revelle W. The international cognitive ability resource: Development and initial validation of a public-domain measure. Intelligence, 2014, volume 43, pages 52 to 64.
• TU Dortmund University. The International Cognitive Ability Resource (ICAR). Project page, read November 4, 2026.

14 Frequently Asked Questions