Start with the first-party documents if you want to understand IQ Spark. They disclose the current item inventory, exact weighting formula, worked examples, implementation limits, and missing validation evidence.
The background guides answer three narrower questions: how the Raven format differs from this site, what "culture-fair" can responsibly mean, and when professional testing is the appropriate choice. Each guide links to the official or professional sources used.
All pages are written and maintained by Emircan Agac, the project's founder and developer. No licensed psychologist has reviewed or endorsed the current item bank. See the editorial policy for byline, sourcing, and correction rules.
First-Party Test Documentation
Item Bank, Formula, and Evidence Gaps
Inspect the 36-item inventory, category counts, answer-key balance, exact raw-score formula, practice bands, privacy behavior, and work that has not yet been validated.
Read the report →How the Raw Score Is Calculated
Follow the calculation from correct answers to the raw result, practice band, and item-by-item answer review.
Read the scoring guide →Six Original Matrix Problems
Use visual matrices, answer options, elimination steps, and full solutions to learn the rule families used by the exercise.
Work through examples →Source-Linked Background Guides
Raven's Matrices and IQ Spark
Compare a licensed, normed professional test family with an independent browser exercise that borrows only the broad missing-pattern format.
Read the comparison →Online vs Professional IQ Tests
Use intended purpose, norms, administration, interpretation, and stakes to choose the right type of assessment.
Use the decision guide →What "Culture-Fair" Can and Cannot Mean
Understand why reducing vocabulary demand is useful but does not make an item bank culture-free, bias-free, or validated across populations.
Read the limits →Project Accountability
Publisher and Project Scope
See who owns and maintains IQ Spark, what the publisher's experience covers, and where professional review is absent.
About the project →Editorial Policy
Review named authorship, source hierarchy, correction handling, and the rules used to separate implementation facts from professional testing claims.
Read the policy →