The Korn Ferry test explained from Korn Ferry's own pages

0 The short answer

The Korn Ferry test is not a single test but a family of assessments that Korn Ferry publishes and an employer assigns, and its ability part is a set of verbal, numerical and logical (or checking) reasoning tests that, by Korn Ferry's own candidate guide, all adapt to your answers and report a percentile against a comparison group. Korn Ferry's August 2017 review of the Talent Q Aspects tests, the heritage behind many of them, lists one clock per question and about 24 minutes on average for its three short tests, while two Canada Revenue Agency pages for whole Korn Ferry tests give at least 80 and at least 120 minutes (all read on October 29, 2026). ACIS is not a Korn Ferry test and gives no Korn Ferry score, but an adult who wants to see their own abilities on adult norms can take ACIS Quick for 15 dollars in about 45 minutes or ACIS Full Scale for 50 dollars in about 175 minutes (prices read October 29, 2026, and they can change). The decisive limit is that only the employer's own version, scored in the employer's own process, answers the employer's question.

1 What Is the Korn Ferry Test, and Which One Will You Actually Sit?

There is no single Korn Ferry test: Korn Ferry publishes a range of psychometric assessments that an employer selects and configures, so the test you sit depends on the role, the employer and the year. Korn Ferry's candidate guide to psychometric assessments, a PDF carrying a 2021 copyright that we opened on October 29, 2026, says employers use its assessments to measure personality, ability, competency and motivation at work. It describes six kinds of assessment: a personality questionnaire, cognitive ability tests, a competency based assessment, a situational judgment test, a motivations (drivers) questionnaire and a 360 feedback questionnaire. For the cognitive part it says the tests most commonly used are verbal reasoning, numerical reasoning, logical reasoning and checking skills. This page follows the cognitive part.

Korn Ferry's Candidate Guide to Psychometric Assessments web page, which we opened the same day and which shows only a 2026 copyright line and no publication date, gives the same four ability tests a one line description each and points to practice assessments. A Korn Ferry document from 2017 adds the structure behind the choice. In its overview of the technical manuals for the Korn Ferry Assessment Solution, a table sets the cognitive tests by role level. The entry level column lists numerical, verbal and checking. The columns for graduate, professional and managerial roles list numerical, verbal and logical. The table also points to a different technical manual for each: Aspects for the entry level cognitive tests and Elements for the others. Read that way, the checking test belongs to the entry level tier and the logical test to the higher tiers, which is our reading of a table and not a sentence the document states.

A public employer shows how that looks from the candidate side. The Canada Revenue Agency lists seven Korn Ferry tests on its assessment options page for candidates, whose page details show October 7, 2026 and which we opened on October 29, 2026: three custom tests (entry, mid and senior level) and four standardized ones. Its page for the Custom Senior-Level Test, with page details dated February 5, 2024, lists four dimensions: cognitive abilities (numerical reasoning, verbal reasoning and logical abilities), behavioural competencies, traits and motivational drivers. The point for a candidate is that the invitation, not a search result, names the test. Read it, and read what the employer sends before anything else.

This page stays with the Korn Ferry ability tests. How employers use cognitive screening in general, and what such tests can and cannot show, is the subject of the page on pre-employment cognitive tests. SHL, the other large publisher candidates meet, has its own treatment on the SHL test page, and this page does not cover it.

2 Where Does the Talent Q Name Come From?

Talent Q is the name of a psychometric company that Hay Group bought in 2014 and whose assessments appear in Korn Ferry documents as Aspects, Elements and Dimensions, so a "Talent Q test" and a "Korn Ferry test" are, on the documents we opened, the same family. A press release that Hay Group issued on April 15, 2014, which KSL.com republished and we opened on October 29, 2026, says Hay Group had acquired Talent Q, an online psychometric assessments, training and consultancy provider. It says Talent Q was founded in 2006 by the occupational psychologist Roger Holdsworth, works with more than 1,000 organizations, has partners in more than 50 countries and offers assessments in over 40 languages. Those are the company's own 2014 statements, not our findings.

The second step is on Korn Ferry's investor relations site. A release dated December 1, 2015, Korn Ferry Completes Acquisition of Hay Group, says Korn Ferry announced that it had completed its acquisition of Hay Group. The third step is Korn Ferry's own paper. The Talent Q Aspects Psychometric Review, dated August 2017 on its cover, carries a Korn Ferry copyright and uses the Talent Q name in its title. We read all 50 pages on October 29, 2026. Its overview says the assessment components of the new Korn Ferry Assessment Solution are carried over from legacy Korn Ferry assessment products and that the existing manuals for KF4D Enterprise, Dimensions, Aspects and Elements serve as a bridge. That the chain runs from a 2014 acquisition to a 2015 acquisition to a 2017 Korn Ferry manual is our reading of three separate documents. None of them states the whole chain in one sentence.

What each name means follows from the 2017 review. Aspects is a short online portfolio with two parts: Aspects Styles, a competency questionnaire, and Aspects Ability, adaptive tests of verbal reasoning, numerical reasoning and clerical checking. The review describes Aspects as built for high volume screening of more junior roles. It also says that for supervisory level and above, Korn Ferry advises testing with the Talent Q Elements ability tests. Dimensions is the Talent Q personality questionnaire. The 2021 candidate guide does not use the name Talent Q at all.

We did not open a technical manual for Elements. The Korn Ferry documents we read do not give Elements item counts or time limits, so this page gives none. Third party sites list figures for Elements, and they disagree with one another, so the sensible source is the instruction screen of your own assessment.

3 Which Ability Tests Are in It, and What Does Each One Measure?

The Korn Ferry ability tests sample four families of ability, numerical, verbal, logical and checking, and each maps onto a different part of the CHC model of cognitive abilities. The wording below is Korn Ferry's: the one line descriptions come from its candidate web page and the longer ones from the 2017 Aspects review. The CHC column is our reading of those descriptions, not something Korn Ferry states, and the last column shows where the ACIS subtest pages touch the same ability, which is never the same as matching a Korn Ferry test.

The numerical test is the one most often misread as a test of mathematics. The 2017 review says its questions range from locating information in graphs and tables to basic arithmetic and more detailed computation, which makes it a reading and calculating task on business data. The ability it draws on overlaps with the one described on the page on quantitative reasoning, where quantitative knowledge and quantitative reasoning are separated, and the page on numerical reasoning tests covers the employer format of that test in more detail.

In the Aspects review the verbal test is a passage based comprehension task and not a vocabulary test. It describes questions that range from simply locating relevant text in a passage to comprehending and inferring from it. That differs from the word, similarity and knowledge tasks that make up a verbal index in a modern battery, and the page on what a Verbal IQ is and is not explains the index that replaced the Verbal IQ. The ACIS verbal subtests (Antonyms, Vocabulary, Information, Synonyms and Similarities) are in that second family, so they show a Gc profile and do not rehearse a passage task.

The logical test is where the Korn Ferry wording is closest to a classical fluid reasoning measure. A test of patterns and themes in abstract symbols samples induction and, depending on the item, general sequential reasoning. The pages on abstract reasoning tests and on logic IQ tests separate those narrow abilities, and the Matrix Reasoning subtest page describes ACIS's visual pattern task. A related diagram based employer format has its own treatment on the page on diagrammatic reasoning tests. The checking test measures neither reasoning nor knowledge. It is a speed of comparing detail, which CHC places under processing speed. The 2017 review itself calls clerical checking "often referred to as perceptual speed". The page on processing speed tests describes the ACIS index in that domain.

One more distinction matters for how a result is read. The Aspects review says the tests assess how well a candidate can perform when trying their hardest, a maximal performance measure, and that results are norm referenced, so they gain meaning once compared with an appropriate norm group. The CHC model page explains the domain names used above, and the page on cognitive ability tests sets out what a broad ability battery covers.

4 How Long Does the Korn Ferry Test Take, and How Is the Clock Applied?

The clock on the adaptive Korn Ferry ability tests runs per question and not per test, so the time a test takes depends on how fast you answer, up to a published ceiling for each item. The Aspects review says it directly: because the ability tests are adaptive, there is a time limit for each question rather than for the test as a whole. It then lists, for each test, the number of questions, the maximum completion time, the average completion time recorded by Korn Ferry and a recommended allowance.

The review adds that the average time for all three tests together is in the region of 24 minutes and that a suggested 45 minutes allows for someone using the maximum time on each. Those are 2017 figures from one portfolio, read on October 29, 2026. They describe the short screening tier. The review elsewhere says the tests generally take 6 to 10 minutes each, which it describes as almost a third of the time of equivalent traditional tests. That is a publisher claim, and the table shows why a headline comparison is hard to audit: the checking test has 46 questions in at most 8 minutes, and the other two have 12 questions each.

Whole Korn Ferry tests are longer because they bundle more. The Canada Revenue Agency's page for the Custom Entry-Level Test lists a standardized test of cognitive abilities and behavioural competencies with a variable number of questions and a time of at least 80 minutes. Its Taxpayer Contact I Test page lists numerical reasoning, verbal reasoning and checking abilities, at least 80 minutes and individually timed questions. The senior level page lists at least 120 minutes and says the behavioural, trait and driver sections are untimed and can be finished across several sittings before the deadline in the invitation letter. All three pages show a page date of February 5, 2024, so an employer may since have changed the version. The honest summary is a range: a few minutes for each short ability test, and one to two hours or more when the personality and competency parts are included.

Korn Ferry's own candidate guide does not give a time for the ability tests. It tells you to make sure you understand what the time limits are, and it says to use the full time on each question and not rush into an unconsidered answer, because the limit is per question. Time pressure therefore comes from two sources at once, the item clock and the difficulty that adaptation keeps near your level. The page on why IQ tests are timed explains what a clock adds to a reasoning score and why speed tests and power tests measure different things.

5 What Does Adaptive Mean on a Korn Ferry Test?

Adaptive means the next question depends on your last answer: Korn Ferry says you start at average difficulty, a correct answer within the time limit brings a harder question, and a wrong answer or a timed out one brings an easier question. That is the candidate guide's wording, which we read on October 29, 2026. It states that all of its cognitive ability tests are adaptive, and that because of this you will feel continuously challenged and stretched, so you should not worry if the questions feel difficult. The Canada Revenue Agency pages we opened use the same idea: the system selects questions based on previous responses and, for the senior test, moves to harder questions after correct answers.

Two consequences follow, and both come from the publisher's own text. The first is that a timed out question is scored the same as a wrong one. The second is that the feeling of difficulty is a poor guide to how you are doing, because the design aims to give every candidate questions near the edge of their ability. The page on how adaptive tests work explains the mechanism in general, including why the share of correct answers says little and how a stop rule decides when a test ends. This page does not repeat that, and it adds only what Korn Ferry says about its own version.

The Aspects review gives more detail than the candidate guide. A large bank of questions at varying difficulty sits behind each test, the candidate starts with a question of medium difficulty, a correct answer brings one of a selection of harder questions, a wrong answer a slightly easier one, and this continues until a set number of questions is completed. The final score then reflects the combination of right and wrong answers and the difficulty levels of the questions. The review states that the final item banks span difficulties from minus 3 to 2.5, with the majority between minus 1.5 and 1.5, which are values on an item response theory scale. It says the trial versions were fixed, non adaptive forms given to almost 10,000 people, with each Verbal and Numerical question answered by about 300 of them, and that items with low discrimination, extreme difficulty or irregular distractors were rejected. All of that is the publisher's description of its own development.

The scoring rule is the least intuitive part, and the review states it plainly. A candidate's score is the sum of the difficulty levels of all the questions answered correctly, or zero if none are, and getting a question wrong includes being timed out. Each passage in the Verbal test, and each table or chart in the Numerical test, has six associated questions, and a candidate is shown only three of them, moving adaptively within the passage and then to another passage according to the cumulative score. With 12 questions in the table above, that fits four passages or tables of three questions each, which is our arithmetic and not a statement from the review. The Checking test works differently, with questions presented in blocks of five or six on a screen. The consequence is that the number correct is not the score: a candidate who answers fewer questions correctly but at higher difficulty levels can finish ahead.

The review also states what it claims adaptation buys. It says candidates receive questions unique to their ability level, which reduces the chances that questions and correct answers can be published, and that questions are randomized, which reduces the chance that two candidates receive the same test. It claims the process is faster, and it claims a single test system can serve many roles. These are advantages the publisher asserts. They are plausible for a bank based design, but the review does not report an independent test of the security claim. The peer reviewed literature describes the same machinery. Weiss and Kingsbury (1984) describe applications in which item response theory selects test questions from an item pool to estimate a student's achievement level and its precision, and for adaptive mastery testing they present evidence from a series of studies that the adaptive procedure gave more accurate mastery classifications while using fewer questions. That work concerns classroom mastery decisions, not employer screening, so it supports the principle and not the Korn Ferry numbers.

How precise an adaptive score is needs its own treatment. The Standards for Educational and Psychological Testing (AERA, APA and NCME, 2014), in their chapter on reliability and precision, note that in adaptive testing the set of tasks and their sequence are tailored to the test taker, and that model based conditional standard errors may be particularly useful for judging the technical adequacy of the procedure. The practical meaning for you is limited. You cannot see your own standard error, and the employer usually sees a percentile.

6 What Does the Employer See, and What Do You Get?

The employer sees a percentile against a comparison group for each ability test, and sometimes a combined suitability score, while you get whatever feedback the recruiter or employer decides to give. Korn Ferry's candidate guide says your responses on each ability test are compared with the scores of a comparison group, meaning a group of people who have previously completed the tests, and the result is given as a percentile. Its example is that a score in the 75th percentile means you did better than 75 percent of the sample population. It also says you should receive feedback on your ability tests directly from the recruiter, hiring organization or employer, and that you should not be afraid to ask for it even if it is not offered.

The Aspects review lists what a client gets in more detail. Each candidate receives a percentage fit score in three versions: a total score that takes account of competency and ability, a styles score and an ability score. On screen, a sortable view groups the suitability scores by project and shows which candidates scored above the cut off mark. A PDF Aspects Ability Test Report displays the percentile scores and how long the candidate took to complete each test. A separate simple PDF candidate report is designed to be shared directly with candidates. The review gives the norm groups behind the ability percentiles: 1,477 people for Verbal, 1,029 for Numerical and 21,764 for Checking. Treat those as the publisher's 2017 description, not as a statement about the group any particular employer uses today.

Public employer pages show a simpler view. The Canada Revenue Agency says a candidate receives a "meets" or "does not meet" result, a score, or both. Its overview of assessment options lists the standardized Korn Ferry tests with a retest period of 180 days and a validity period of 5 years, and the custom tests with results that cannot be transferred to other staffing processes. For the standardized tests, results can be transferred only if the same test is used. A pass line, in other words, belongs to the employer's process and not to the test.

Reading a percentile is the same skill whatever the publisher. The page on why you cannot average a score and a percentile explains why equal percentiles from different comparison groups are not equal results, and the page on how IQ scores are normed explains what a reference group does to a number. If you want to turn a standard score into a percentile on a normal curve, the IQ percentile calculator does the arithmetic, but a Korn Ferry percentile is a position among earlier Korn Ferry test takers, not a position on the IQ scale. One more point from the 2017 overview protects you: it states that, absent a client specific validation study, the assessment should always be used with other information such as interviews and resumes to guide talent decisions.

7 What Does Korn Ferry Claim About Reliability and Validity?

Korn Ferry claims in its 2017 review that the Aspects Ability tests are reliable and that tests of this kind predict job performance, and a candidate should read both as the publisher's claims. The review reports marginal reliability, an item response theory index analogous to Cronbach's alpha, of 0.74 for Aspects Verbal, 0.77 for Aspects Numerical and 0.89 for Aspects Checking, estimated with an IRT calibration on 1,000 people, and it concludes that the tests are highly reliable. We report those figures as stated and have not recomputed them. The page on reliability and validity explains how to read such coefficients, and why test length bears on precision.

On validity, the candidate guide states that ability tests have been found to be the strongest predictor of future job performance. The Aspects review says verbal and numerical reasoning and clerical checking have been consistently shown to be strong predictors of job performance across validity studies, citing reviews by Schmidt and Hunter (2004) and Whetzel and colleagues (2011). We did not open those two reviews. We did open the later work by Sackett, Zhang, Berry and Lievens (2022), a revisit of meta-analytic validity estimates in personnel selection. Their abstract concludes that earlier corrections for range restriction often overcorrected, that mean validity estimates are reduced by 0.10 to 0.20 points, that most procedures that ranked high before remain high in rank, and that structured interviews emerged as the top ranked procedure. The abstract does not single out ability tests, so this page cannot say where the publisher's word "strongest" now stands. It can say that the ranking has been revised and that a structured interview, not a cognitive test, is named at the top. The page on IQ and job performance sets out the meta-analytic record on cognitive ability.

The Aspects review also reports criterion studies run with client organizations, one of them a sample of 65 call centre consultants who took the Styles questionnaire and the Verbal and Numerical tests. We do not report their coefficients here. Criterion validity is local to a job, a criterion and an organization, which is why the Standards (Standard 11.1) ask that, before an employment test is developed and implemented, a clear statement of the intended interpretations of scores for specified uses be made, and that validation be designed to determine how well this is achieved. For you, the implication is plain. A Korn Ferry percentile can be a reasonable screening signal for the role the employer validated it against, and it says very little about your general intelligence, your worth or your performance in another job.

8 What Does Retest Research Say About Practice, Tips and Examples?

Retest research says practice raises scores on cognitive ability tests by about a quarter of a standard deviation on average, and more when practice comes with coaching or identical forms, so preparing is reasonable but it is not a guarantee. Hausknecht, Halpert, Di Paolo and Moriarty Gerrard (2007) summarized 50 studies of practice effects for tests of cognitive ability, covering 107 samples and 134,436 participants, and report an adjusted overall effect size of .26. Their abstract adds that previous studies had indicated that as many as 25 to 50 percent of applicants in organizational and educational settings are retested, that effects were larger when practice was accompanied by test coaching and when identical forms were used, and that more research is needed on how retesting affects the validity of score interpretations. The abstract does not say whether adaptive tests were included, so the .26 is a general figure and not an estimate for a Korn Ferry test. ACIS's guide to numerical reasoning tests applies the same figure to the numerical format.

Korn Ferry's own advice is consistent with that research. Its candidate guide says practice improves performance on ability tests, that you should complete its practice assessments, which it says can be accessed for free, to learn the format and the time allowances, and that you may also do mathematics or language quizzes or logic puzzles to improve speed and accuracy. The same guide says to be cautious when subscribing to third party practice sites that charge for test content, because in its words they do not provide recognized content, may not store your data or card details securely, and may even contain viruses. This page does not link, rate or compare any practice seller.

Searches for "examples" and "practice" deserve a direct answer. The format of each test is described above in the publisher's words, and the Canada Revenue Agency pages we read say practice questions become available after you open the test link and that no sample questions are given on the page. We do not reproduce any question from a Korn Ferry test or from any practice site, because that would undermine the test for the people who sit it honestly. What we can say from the published rules is narrow. Read each passage or table and its options carefully, keep a steady pace, and use the final practice questions the system offers before the real test begins.

One consequence of the scoring rule is worth stating as our own inference, not as Korn Ferry advice. By the Aspects review, getting a question wrong includes being timed out, so an unanswered question cannot score better than a wrong answer. That is not a reason to rush, because the guide says to use the time you need, but it is a reason not to leave a question open at the deadline. If you retake a standardized test later, remember that the employer, and not you, decides whether a retest is allowed and when.

9 How Should You Prepare for an Unsupervised Session?

The Korn Ferry ability tests are usually taken unsupervised at home or at work, so your preparation is mostly about the room, the device and the interruptions you can control. The Aspects review says the assessments in that portfolio are typically completed without supervision, that candidates can take breaks between assessments, and that they are strongly advised to complete each assessment in one sitting. The Canada Revenue Agency pages describe its Korn Ferry tests as unsupervised internet tests taken virtually, from a laptop or desktop with a high speed connection, and they state that Chromebooks and mobile devices cannot be used. That is that employer's rule, so your invitation governs, but it is a reason to test your device before the start time.

Korn Ferry's candidate guide lists the rest. Be somewhere quiet where you will not be disturbed for the full duration, because distractions may directly affect your score. Check the computer and the connection, though the guide says the assessments work independently of connection speed, so a slow connection will not affect the test. Have paper, a pen or pencil and a calculator at hand for notes and calculations. Read the online instructions, ask the administrator if something is unclear, and do the final practice questions the system offers. It adds a plain note on anxiety: a little can help you keep a good pace, and a good night's sleep and enough time before the start help you approach the test in a relaxed frame of mind.

Two limits of the setting are worth knowing. The first is technical support. Korn Ferry's customer support FAQ, which we opened on October 29, 2026 and which shows a 2026 copyright and no date, says it addresses only technical issues with the Korn Ferry platform during the online assessment and can confirm whether your tests were submitted, and it routes questions about results to the organization that requested the assessment. It also says Korn Ferry never requests payment from candidates and warns about people posing as Korn Ferry on messaging apps. The second limit is the setting itself. The panel in Tippins and colleagues (2006) discussed unproctored internet testing in employment and listed concerns about hardware and software, the security of test content, the identity of candidates and cheating. The Standards make the same point in their chapter on fairness: where unproctored administrations cannot ensure standardization, results should be interpreted with caution. A candidate cannot fix that, but an honest candidate can avoid adding to it by not sharing or posting test content.

10 How Does a Korn Ferry Test Compare With the Other Ways of Being Tested?

A Korn Ferry test answers an employer's screening question with a percentile against a comparison group, and the other ways of being tested answer different questions with different norms, supervision and costs. The table sets the main options side by side. ACIS prices and times were read on its site on October 29, 2026 and can change. Nothing in the last row is a Korn Ferry score, and nothing in it prepares for or predicts one.

The comparison shows why none of the other rows is a substitute for the first one. If an employer requires a Korn Ferry assessment, only that assessment, taken as invited, counts for that process. The other rows answer questions of your own. The page on where to take an IQ test compares every route, supervised and unsupervised, and the guide to the best online IQ tests compares the online products. The page on IQ tests for adults is the place to start if you want an adult normed result without an employer in the picture, and the free IQ test page explains what a free start gives you.

Another publisher's timed test is covered in the guide to the PI Cognitive Assessment. Set beside the Korn Ferry ability tests, with their adaptive items and a clock on every question, it shows how much the label "cognitive test" hides.

11 How Can an Adult See Their Own Profile on Adult Norms?

An adult who wants to see their own abilities can take a normed battery, and the honest offer from ACIS is a profile of broad abilities by their CHC names, not a Korn Ferry score and not preparation for one. ACIS has 20 subtests in six CHC domains and reports a Full Scale IQ and six indices. Each of the three forms reports a Full Scale IQ with its 95 percent confidence interval: Quick is 15 dollars for 6 subtests in about 45 minutes, Optimized is 30 dollars for 13 subtests in about 110 minutes, and Full Scale is 50 dollars for all 20 subtests in about 175 minutes (prices read on October 29, 2026). It is a one time payment, with breaks allowed, progress saved between subtests and 30 days to complete. The free trial needs no card, and there is one per person.

The mapping to the Korn Ferry tests is loose, so read it as a map of abilities and not of tests. For logical reasoning, the ACIS fluid reasoning subtests are the nearest. The Matrix Reasoning subtest page describes a visual pattern completion task that samples rule discovery, and the Figure Weights page describes relational balance reasoning that sits between fluid and quantitative reasoning. Both are in the Quick form. The pages for those two subtests do not state that either one adapts to your answers, so adaptivity is not stated for them, and nothing here implies that any ACIS subtest behaves like an adaptive Korn Ferry test. For numerical work, the Quantitative Reasoning Index combines Mathematical Achievement and Arithmetic, and the manual describes the quantitative composite as including Figure Weights and Visual Number Series as well. For verbal work, the Verbal Comprehension Index uses Antonyms, Vocabulary, Information, Synonyms and Similarities, which is a vocabulary and knowledge profile and not a passage inference task. For checking, the Processing Speed Index uses Symbol Search and Coding.

If you only want one domain, the Custom Test is 5 dollars per subtest, so the two Processing Speed subtests would cost 10 dollars, and any domain you complete returns its full index score. The Full Scale IQ needs the Full Scale battery, and at 10 subtests the Full Scale form costs the same. Three practical conditions apply. Digit Span, Alphanumeric Sequencing and Arithmetic present their items as audio and need working sound. The verbal and knowledge subtests are affected by English proficiency and educational exposure, and the battery is English only. And the session is unsupervised, so a quiet room matters here as it does for the employer's test.

Reading the result takes some care. A scaled subtest score runs from 1 to 19 with a mean of 10, and an index or Full Scale IQ is on the standard scale with a mean of 100, a standard deviation of 15 and a 95 percent confidence interval, which the page on what the standard deviation of 15 means explains. One subtest is less precise than an index, and an index is less precise than the battery. The page on index score differences shows how common a gap between two indices is, so a lower index beside a higher one is not by itself a defect.

12 Where ACIS Sits, and What a Buyer Should Do

ACIS is an online, unsupervised, adult normed battery that shows your own profile of broad abilities, and it is not a Korn Ferry test, gives no Korn Ferry score, and cannot stand in for, prepare for or predict an employer's assessment. Its limits are plain. It is online and unsupervised, it is not a clinical or diagnostic instrument, it is English only, and its verbal and knowledge tasks are affected by English proficiency and educational exposure. The page for researchers states the boundary in these words: ACIS "is not intended for clinical diagnosis, hiring decisions, accommodation determinations or admission to high IQ societies" (read on the ACIS for research page on October 29, 2026). Do not send an ACIS report to an employer, and do not treat it as practice for an employer's test. The technical manual documents the instrument for anyone who wants to check it before buying.

How a score should be read is the part the Standards for Educational and Psychological Testing (AERA, APA and NCME, 2014) address. Standard 6.10 says that when score information is released, those responsible should provide interpretations appropriate to the audience that describe in simple language what the test covers, what scores represent, the precision of the scores and how they are intended to be used. Standard 11.1 asks that employment tests have a clear statement of the intended interpretations of scores for specified uses before development, with validation designed to test them. Apply both to every number in this article. A Korn Ferry percentile is meant for a specific screening use against a specific comparison group, and an ACIS index is meant to describe a person's abilities on adult norms. Neither is a verdict on the other, and neither is a diagnosis or a measure of worth. Group results, such as the average gains in the retest research, say nothing certain about any one person.

The next steps are concrete. First, read the invitation and use the free practice assessments Korn Ferry offers, because the format and the per question clock are what the test sits on. Second, set up a quiet room and a laptop or desktop you have tested. Third, if you want to see your own abilities on adult norms, open the Full Scale example report, then start the free trial with no card, and decide on a form only after that. The refund wording at checkout is "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."

13 Sources Behind This Page

All Korn Ferry, Canada Revenue Agency, Hay Group and KSL pages were opened on October 29, 2026, and ACIS prices and details were read on its site the same day.

1. Korn Ferry. (2021). Candidate guide: Psychometric assessments. PDF. kornferry.com candidate guide
2. Korn Ferry. (n.d.). Candidate Guide to Psychometric Assessments. Web page, copyright 2026. kornferry.com candidate page
3. Korn Ferry. (2017). Talent Q Aspects Psychometric Review, August 2017 (TQ-201). kornferry.com psychometric review
4. Korn Ferry. (n.d.). Customer Support FAQ. Web page, copyright 2026. kornferry.com customer support FAQ
5. Korn Ferry. (2015, December 1). Korn Ferry Completes Acquisition of Hay Group. Press release. ir.kornferry.com press release
6. Hay Group. (2014, April 15). Hay Group Announces the Acquisition of Talent Q. Press release republished by KSL.com. ksl.com press release
7. Canada Revenue Agency. (2026). Assessment options for candidates. Canada.ca. canada.ca assessment options
8. Canada Revenue Agency. (2024). Custom Senior-Level Test (Korn Ferry). Canada.ca. canada.ca senior level test
9. Canada Revenue Agency. (2024). Custom Entry-Level Test (Korn Ferry). Canada.ca. canada.ca entry level test
10. Canada Revenue Agency. (2024). Taxpayer Contact I Test (Korn Ferry). Canada.ca. canada.ca taxpayer contact test
11. Hausknecht, J. P., Halpert, J. A., Di Paolo, N. T., & Moriarty Gerrard, M. O. (2007). Retesting in selection: A meta-analysis of coaching and practice effects for tests of cognitive ability. Journal of Applied Psychology, 92(2), 373-385. doi.org/10.1037/0021-9010.92.2.373
12. Sackett, P. R., Zhang, C., Berry, C. M., & Lievens, F. (2022). Revisiting meta-analytic estimates of validity in personnel selection: Addressing systematic overcorrection for restriction of range. Journal of Applied Psychology, 107(11), 2040-2068. doi.org/10.1037/apl0000994
13. Tippins, N. T., Beaty, J., Drasgow, F., Gibson, W. M., Pearlman, K., Segall, D. O., & Shepherd, W. (2006). Unproctored Internet testing in employment settings. Personnel Psychology, 59(1), 189-225. doi.org/10.1111/j.1744-6570.2006.00909.x
14. Weiss, D. J., & Kingsbury, G. G. (1984). Application of computerized adaptive testing to educational problems. Journal of Educational Measurement, 21(4), 361-375. doi.org/10.1111/j.1745-3984.1984.tb01040.x
15. American Educational Research Association, American Psychological Association, & National Council on Measurement in Education. (2014). Standards for Educational and Psychological Testing. AERA. testingstandards.net open access files

14 Frequently Asked Questions