IQ Spark Test Technical Report

This report documents IQ Spark as it actually works in the browser. It is based on the live 36-item bank and scoring code, not on a general description of intelligence tests. Publishing these details lets visitors inspect what contributes to a result and decide whether the exercise is appropriate for their purpose.

IQ Spark is an independently developed pattern-reasoning exercise. It is not a standardized IQ test, a licensed form of Raven's Progressive Matrices, or a substitute for an assessment administered by a qualified professional. No representative norming sample, test-retest study, reliability coefficient, or clinical validation study has been completed for this item bank. The displayed number is therefore a raw pattern-reasoning score, not a measured clinical IQ.

The intended use is narrow: practice visual-rule detection, review which item families caused difficulty, and compare attempts made under similar conditions. The score must not be used for diagnosis, school placement, gifted identification, employment, disability decisions, or any high-stakes conclusion about a person.

The inventory below reflects the current source item bank. Four unscored practice items introduce the format, followed by three 12-item sets. Answer positions are deliberately balanced so A, B, C, and D are each correct nine times. Main items use one fixed theory-based progression so every visitor receives the same presentation order.

The category inventory is: matrix 6 items; pattern 6; sequence 5; logic 5; spatial 5; rotation 4; transformation 3; and analogy 2. These categories describe item families rather than validated independent subscales, so the category chart remains descriptive.

Each main item contributes one point and practice items contribute zero. The browser calculates:

The difficulty levels are theory-based design labels, not item-response parameters estimated from a norming sample. Equal scoring avoids pretending that uncalibrated labels are empirical weights. Visitors with the same number of correct answers therefore receive the same raw result.

The raw result is grouped into transparent practice bands. These labels make the item review easier to navigate; they are not IQ anchors, percentiles, or observed population performance.

The results screen does not calculate a percentile. It displays the raw result and a detailed item review with the selected answer, correct answer, and rule or rules to check.

The current release uses deterministic checks that can be repeated directly against the item bank and scoring code:

• Exactly 36 items are present, split evenly across Sets A, B, and C.
• Every item has four answer options and one answer-key position.
• Correct answer positions are balanced at nine A, nine B, nine C, and nine D.
• Four practice items are excluded and a perfect main-test response produces raw result 36.
• Completion time does not change the score, and no age or demographic input is collected.
• Progress and the latest result are stored locally in the browser, not in an IQ Spark account.

These checks prevent implementation mistakes, but they are not a validation study. The project still lacks independent expert item review, accessibility testing with a representative user group, response-data calibration, internal-consistency estimates, test-retest evidence, and comparisons with a validated external measure.

Using symbols instead of vocabulary reduces one source of language demand, but it does not make a test culture-free. Familiarity with puzzle conventions, device size, visual acuity, motor control, education, practice, fatigue, and available time can all affect performance. The item bank has not been calibrated separately across languages, countries, ages, disability groups, or device classes.

The project follows the principle that score interpretations need evidence for their intended use. The open-access Standards for Educational and Psychological Testing describes validity as a property of proposed score interpretations and uses. The International Test Commission technology-based assessment guidance also emphasizes delivery conditions, fairness, accessibility, security, and privacy. IQ Spark cites these standards to explain its limits, not to claim compliance or professional certification.

IQ Spark uses the broad idea of finding a missing element in a visual relationship. It does not copy Raven item artwork, use Raven norms, or administer a Raven form. Pearson's official Raven's 2 product documentation describes a professional instrument with controlled forms, manuals, updated norms, standard scores, and percentile reporting. Those features are precisely why a licensed assessment supports interpretations that this independent browser exercise cannot.

The scoring calculation runs in the visitor's browser. IQ Spark uses localStorage for unfinished progress and a short-lived result cache. The application sends aggregate interaction events to Google Analytics, such as test started or completed, but it does not send the visitor's full answer record or displayed raw result as a user profile.

Because the scoring rules are documented above, a visitor can reproduce the raw calculation by counting correct main items. The report intentionally separates code-level reproducibility from psychometric validity: a calculation can be implemented consistently and still lack evidence for clinical interpretation.

Author and project owner: Emircan Agac, founder and developer of IQ Spark. No licensed psychologist has reviewed or endorsed the current item bank. Corrections can be sent to iqsparktest@gmail.com; include the page section, disputed statement, and a source that supports the correction.

Related first-party documentation: scoring guide, worked examples, methodology, and editorial policy.