How Aptitudo works, and how to check it.

What we look at, and with what

Every adaptation for India, including wording, examples and the situations used, is documented in the specification with the original item alongside.

The eight parts of Career Discovery

The table above names the models. This section says what each part actually asks you, what its number means, and what it cannot tell you. It is the part of this page a counsellor, a teacher or a careful parent should read before trusting a report.

Dimension 1: Vocational interests (RIASEC)

Holland's model of six interest types, in use in career research since the 1950s: Realistic (practical, working with things), Investigative (analytical, scientific), Artistic (creative, expressive), Social (helping, teaching), Enterprising (persuading, leading) and Conventional (organising, working to a system).

Your strongest letters describe the kind of work you are likely to find engaging. Those letters are matched to career families and to specific occupations from the catalogue.

What this cannot tell you: whether you will succeed in a given career, whether your interests will change with time, or whether you should set them aside for other reasons such as family expectations or money.

Dimension 2: Cognitive aptitude

Four short task based blocks: pattern recognition, spatial visualisation, numerical reasoning and processing speed. These are not IQ tests. The tasks are written for the Indian school context, so the vocabulary, examples and formats are ones an Indian student will recognise.

Two of them, pattern recognition and spatial visualisation, adapt as you go. Their questions sit on a difficulty ladder from level 1 to level 5. You begin near the easier end, every correct answer moves you up a rung and every wrong one moves you down, so two students rarely see the same set of questions. The numerical task is a fixed set of eight questions that get harder as you work through it.

Because of that, your score is not a tally of correct answers and not a share of the points on offer. For each of these three tasks we estimate, from which questions you answered correctly and how hard each of those questions was, the level of difficulty you can handle reliably. That estimate allows for the fact that every question is multiple choice with four options, so a lucky guess is worth less than a correct answer high up the ladder. The estimate is then placed on a 0 to 100 scale for that task, where 0 is what an all wrong run scores and 100 is what an all correct run climbing to the hardest rungs scores.

Two things follow. Six correct answers at hard levels score higher than six correct answers at easy ones. And the number tells you where you sit inside what that one task can measure: it is not a percentile, it is not a comparison against other students, and these tasks have not been validated against exam results or any other measure of academic performance.

Answering faster earns you nothing extra on these three tasks. Each question does carry its own time limit, 25 seconds on the pattern and spatial tasks and 30 on the numerical one, and a question you run out of time on is recorded as unanswered, which counts against you exactly as a wrong answer would.

Pure speed is measured separately, by the fourth task: a 90 second symbol matching task, where you read a key of six shapes and write the digit each one stands for, scored as correct answers minus wrong ones. It measures how quickly you can work through a simple rule, and it has nothing to do with computer programming.

Every one of these numbers comes from a handful of questions in a single sitting, so read them as a rough indication of relative strengths, never as a precise measurement.

What this cannot tell you: how intelligent you are, which is not what cognitive aptitude measures, or how you will do in a specific academic subject.

Dimension 3: Personality (Big Five)

The most established personality framework in academic psychology. Five traits: openness (curiosity, appetite for new experience), conscientiousness (organisation, follow through), extraversion (sociability, assertiveness), agreeableness (cooperation, trust) and neuroticism (emotional reactivity, sensitivity to stress).

Your pattern across the five shapes how well you would fit different work settings, team structures and roles. No band is better than another, and traits shift with age.

What this cannot tell you: nothing here is a medical diagnosis, and no result will tell you whether you have a mental health condition.

The free Personality Snapshot, in detail

The Personality Snapshot is a separate, free product from the eight part Career Discovery above. It is twenty questions, five traits, and a report written in advance by a person. No AI writes any part of it, and the report is composed on your own device with no call to any server.

The instrument. The Mini-IPIP, twenty items, four per factor, taken from the International Personality Item Pool and used exactly as published, word for word. The only thing that is ours is the order the questions are asked in.

> Donnellan, M. B., Oswald, F. L., Baird, B. M., and Lucas, R. E. (2006). The Mini-IPIP scales: Tiny yet effective measures of the Big Five factors of personality. Psychological Assessment, 18, 192 to 203.

The licence, in the publisher's own words, quoted from ipip.ori.org and read on 8 September 2026:

> Because the IPIP has been placed in the public domain, permission has already been automatically granted for any person to use IPIP items, scales, and inventories for any purpose, commercial or non-commercial.

What a count is. Each trait is four questions, each answered on a five point scale. Your count for a trait is those four answers added up, so it runs from 4 to 20. That is the whole of the arithmetic. There is no weighting, no adjustment and no step you cannot check by hand.

What lower and higher mean. They mean toward one end of those four questions or toward the other. They are directions, not grades. A count toward the lower end of a trait is a way of being, and there is no band on the report that is a good one or a bad one.

There is no comparison with anybody. The report never prints a percentile, a rank, an average or any statement about other students, because a comparison needs a norm sample from the same population and the Indian norming study has not reported yet. Every sentence in that report is about the one person who answered, compared only with their own other four counts.

Two traits that land close together are reported as level. Four questions cannot separate counts that sit within a couple of points of each other, so the report says they are level rather than putting one above the other. That is our stated policy, not a calculated statistic: a small gap can be produced by two answers each moving one step.

Reverse scored questions. Ten of the twenty questions are written the other way round, so that agreeing with them counts toward the lower end of the trait. That is how the instrument was published, and the direction of every item is in the published scoring key.

One trait is reported from its other end. The published fifth factor is Neuroticism. The report calls it Emotional Stability, which is the same measurement read from the other end and is what consumer facing Big Five instruments print. Nothing about the scoring changes: the same four items, the same published reverse keys, the same direction. A high published Neuroticism score is shown as a count toward the lower end of Emotional Stability. The report states this in its own words at the foot, so a counsellor can check it against IPIP.

Intellect is not intelligence. The factor named Intellect is four questions about imagination and about interest in abstract ideas. IPIP's own label for it is "Intellect or Imagination". It measures no ability of any kind, it is not a cognitive test, and it says nothing about school performance.

The summary name. The report names one short picture drawn from the pattern of your five counts by a fixed rule that anyone can read. It is not a type and it is not a score. The counts it came from are printed directly above it, always, and the report refuses to render the name if any of them is missing. Change the answers and the name changes with them.

What twenty questions cannot do. They cannot choose a stream or a career. They do not indicate anything about mental health and nothing in that report is a diagnosis. They do not say how you will do in any exam. And twenty questions answered on one day are a rough measure: a longer instrument, asked more times, would move some of these counts.

Dimension 4: Work values

What you want work to give back: autonomy, stability, meaning, achievement, relationships, income, structure. No value is better than another. Knowing your order helps match you to work that will not feel hollow even when it is going well.

Dimension 5: Career adaptability

Your readiness for the work of choosing a career, in four parts: concern (awareness of the future), control (a sense of agency), curiosity (exploring) and confidence (self belief). Career adaptability is associated in published research with successful career transitions.

Dimension 6: Contextual factors

Your real circumstances: family finances, where you can study, who supports you. Advice that ignores context is not useful, so these shape what the report recommends. They are never scored, and they never lower a fit.

Dimension 7: Proactive personality and sense of calling

How far you tend to shape your surroundings rather than react to them, and how strongly you feel drawn to particular work. Both are associated in published research with career satisfaction.

Dimension 8: Situational judgment (Indian context)

Situations from Indian student life: a conversation with family about career, academic pressure, finding your way socially. What you would actually do often differs from what you say you prefer, and that gap is worth seeing.

How scoring works

Your answers are stored exactly as given: what was asked, what you chose, in what order. A fixed rule turns them into scores. The rule is published, versioned, and identical for every person who answers. The same answers always produce the same scores, and no AI is anywhere in that step.

Every score carries a confidence. Rushed answering, contradictory answers and very short runs lower it, and the report says so in words rather than hiding it. When two results are close, they are reported as level, and both are shown. The threshold below which a result is reported as uncertain is printed in the specification.

What the AI does, and does not do

Language models write the plain language explanation of your scores, the comparisons in the guides, and the roadmaps. They never produce a score, a rank or a recommendation on their own. Every sentence an AI writes is checked against your numbers before it reaches you, and any sentence the numbers do not support is rejected. Every AI written sentence is marked as such wherever it appears.

How the sixteen pictures work

Career Discovery names one of sixteen summary pictures that you sit closest to, with the distance shown. The pictures are labels for regions of the interest and personality space, placed on top of the visible scores. They are a way of reading the numbers, never a type, and most people sit between two.

How careers and courses are ranked

Each career and course carries a profile of what it asks of a person, built from O*NET occupational data and from documented Indian sources for courses, streams and routes. Your picture is compared with each profile, and the closeness is the fit. Fit is an estimate of match between you as you are now and what the work asks; it is never a prediction of admission, an exam result, income, or success. Every fact about a career or course carries its source and the date it was checked.

What no result here is

No result here is a verdict. None is a rank against other students, an IQ score, a personality type, a learning style, or a mood, emotion or mental health measure. No result here does or can predict NEET, JEE, CLAT, CA or any exam. None of them states whether you are good enough. These are stated openly because they are the reason the rest can be trusted.

The norming study

A norming study on Indian students is under way. It will report here, as it grows, the size and composition of the sample, the distribution of every score, the reliability of every scale, and where Indian students differ from the published international norms. Until it reports, the specification states which comparison each score uses, and the report says so.

Data and consent

Aptitudo is built under the Digital Personal Data Protection Act 2023 and the 2025 Rules. One clear consent before anything is stored. Verifiable parental consent for anyone under 18, and a copy of every minor's report to the parent. No notifications aimed at children and no profiling of children for marketing. Withdrawal in one action. Every answer readable, everything downloadable, the account pausable or erasable from Settings. Data stored in India — Mumbai, ap-south-1. A named Grievance Officer.

Versions

The specification carries a version number, printed on every report. When the rule changes, the version changes, a change note is published here, and no existing report is altered.

Questions about the methodology

• Can I read the rule? Yes. The scoring specification is published in full and linked from every report.
• Why is my result reported as uncertain? Because the confidence for that scale fell below the printed threshold. The report says which answers caused it and offers a retake window.
• Why no percentiles? A percentile needs a norm sample from the same population. Until the Indian norming study reports, we do not print one.
• Can a school or counsellor verify a report? Every number traces to the answers and the published rule. Counsellors using Campus Fit receive every answer.

References

• Holland, J. L. (1997). Making vocational choices: A theory of vocational personalities and work environments (3rd ed.). Psychological Assessment Resources.
• Nye, C. D., Su, R., Rounds, J., & Drasgow, F. (2012). Vocational interests and performance: A quantitative summary of over 60 years of research. Perspectives on Psychological Science, 7(4), 384 to 403.
• Goldberg, L. R. (1999). A broad bandwidth, public domain, personality inventory measuring the lower level facets of several five factor models. In I. Mervielde, I. Deary, F. De Fruyt, & F. Ostendorf (Eds.), Personality Psychology in Europe, Vol. 7. Tilburg University Press.
• Goldberg, L. R., Johnson, J. A., Eber, H. W., Hogan, R., Ashton, M. C., Cloninger, C. R., & Gough, H. G. (2006). The international personality item pool and the future of public domain personality measures. Journal of Research in Personality, 40(1), 84 to 96.
• Carroll, J. B. (1993). Human cognitive abilities: A survey of factor analytic studies. Cambridge University Press.
• McGrew, K. S. (2009). CHC theory and the human cognitive abilities project. Intelligence, 37(1), 1 to 10.
• Credé, M., & Kuncel, N. R. (2008). Study habits, skills, and attitudes: The third pillar supporting collegiate academic performance. Perspectives on Psychological Science, 3(6), 425 to 453.
• Savickas, M. L., & Porfeli, E. J. (2012). Career Adaptabilities Scale: Construction, reliability, and measurement equivalence across 13 countries. Journal of Vocational Behavior, 80(3), 661 to 673.
• Bateman, T. S., & Crant, J. M. (1993). The proactive component of organizational behavior: A measure and correlates. Journal of Organizational Behavior, 14(2), 103 to 118.
• Seibert, S. E., Crant, J. M., & Kraimer, M. L. (1999). Proactive personality and career success. Journal of Applied Psychology, 84(3), 416 to 427.
• Dik, B. J., Eldridge, B. M., Steger, M. F., & Duffy, R. D. (2012). Development and validation of the Calling and Vocation Questionnaire (CVQ) and Brief Calling Scale (BCS). Journal of Career Assessment, 20(3), 242 to 263.
• Pashler, H., McDaniel, M., Rohrer, D., & Bjork, R. (2008). Learning styles: Concepts and evidence. Psychological Science in the Public Interest, 9(3), 105 to 119.
• National Center for O*NET Development. O*NET database, sponsored by the US Department of Labor, Employment and Training Administration. Occupation ability profiles taken from version 30.0 on 30 August 2026; the interest and work value profiles still date from the earlier 28.3 mapping. Public domain, used under its published terms and attributed. onetonline.org