Robert Neir

Russell Warne

Comparing Cronbach’s alpha and McDonald’s omega reliability values

Comparing Cronbach’s Alpha and McDonald’s Omega Reliability Values

Intelligence matters: How euphemisms create confusion and why we should embrace IQ testing in the age of AI

Breaking the Taboo

Learn all about the Flynn Effect, how intelligence is increasing over the years, and what factors are contributing to it

The Flynn Effect: Is the World’s Collective IQ Increasing or Decreasing?

Does Intelligence Increase Over Time? Exploring the Flynn Effect

Dive into the history of IQ tests: Learn how psychologists tried to measure human intelligence over the decades.

A Comprehensive History of IQ Tests

A Comprehensive History of IQ test

This article describes the selection process and rationale behind the 15 subtests included in the RIOT (Reasoning and Intelligence Online Test).  It details how the test creators chose these specific subtests from an initial pool of 37, based on factors like their ability to measure general intelligence ("g loading"), ease of online administration, and other practical considerations.  The article provides examples of item formats for each subtest and explains the reasoning behind their inclusion.  It also briefly mentions the 21 subtests that were not chosen, with Logical Reasoning being the only one that made it to the draft stage.

The 15 Subtests of the RIOT

The 15 Subtests of RIOT

Learn how to take an IQ test with RIOT IQ, the top online option for 2025. Discover where to test, and prep tips.

How to Take an IQ Test

Learn about g-factor: Explore is origin, components and implications

What is the "g" factor? What is general intelligence?

How To Calculate IQ Score. Learn how IQ is calculated, from the outdated "mental age" quotient to the modern, statistically-driven deviation IQ. This article explains the process, including z-scores and standardization, used in tests like the RIOT.

How To Calculate IQ

RIOT: Online IQ test for psychologists, researchers, & the public. Get 21 scores, including IQ, with this professional assessment.

What is the RIOT?

What Is the RIOT?

Intelligence research is often criticized for being elitist. This article argues that the field is actually very pro-human and that leading researchers have long sought to improve the lives of people with low IQ.

Articles