You’ve received an IQ test report — perhaps for yourself, your child, or a client. It’s filled with numbers, percentiles, confidence intervals, and subtest scores. What does it all mean? This guide walks you through interpreting a cognitive ability report the way a psychometrician would, helping you understand not just …
If you’ve taken the GRE, GMAT, or certain professional certification exams, you may have noticed something odd: the questions seemed to adjust to your level. You weren’t imagining it. These tests use Computerized Adaptive Testing (CAT), a sophisticated approach that tailors each test to the individual test-taker in real time. …
What does research say about IQ in autism? Learn about cognitive profiles in ASD, why traditional IQ tests may be misleading, and how intelligence varies across the autism spectrum.
How does IQ change with age? Explore average IQ scores by age group, when cognitive abilities peak, and what research shows about intelligence across the lifespan.
Does speaking two languages boost intelligence? Explore what research actually shows about bilingualism and cognitive ability — including the bilingual advantage debate and its limitations.
Does ADHD affect IQ scores? Explore what research reveals about the relationship between ADHD, attention, and measured intelligence — including why IQ tests may underestimate ability in ADHD.
Considering an IQ test for your child? Learn when cognitive testing is appropriate, which tests are used, what to expect, and how to interpret the results — from a psychometrician.
Few topics in psychology generate more heat and less light than sex differences in cognitive abilities. Claims range from “men and women are cognitively identical” to “there are fundamental, biologically determined differences that explain occupational disparities.” The data support neither extreme. Here is what large-scale research actually shows — including …
Every time you take a standardized test — an IQ assessment, a college entrance exam, a professional certification — the questions have been calibrated using sophisticated statistical models that most test-takers never learn about. Item Response Theory (IRT) is the mathematical framework behind virtually all modern psychological and educational testing, …
If you’ve received a score of 130, 140, or 150 on an IQ test — or if you’re simply curious about what these numbers represent — you’ve likely found that the internet offers more mythology than explanation. These scores place individuals well above average, but what that means practically, statistically, …
