iPrepGenius Research
Original data studies computed from our bank of 93,000+ verified practice questions and anonymized practice data. Numbers update live as the dataset grows. Free to cite with attribution.
What Gifted Tests Actually Test: We Classified 20,000+ Practice Questions
We analyzed the skill composition of our CogAT, NNAT, OLSAT, CCAT, Raven's and WISC-V style question banks. The finding most parents miss: the majority of gifted-test content isn't verbal at all.
Read the studyWhen School Tests Get Hard: Difficulty Data Across 70,000+ K-8 Questions
Average question difficulty in our standards-aligned bank climbs sharply between grade 3 and grade 6 — the share of hard questions grows more than 6x. Here's the grade-by-grade curve and what it means for when to start preparing.
Read the studyCiting our research
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