Decision thresholds, speed, accuracy and overchecking
How much evidence is enough? A guide to the speed–accuracy trade-off, overchecking, deadlines and value-based stopping rules.
Latest N-Back Brain Training Studies: Effective Sleep and Training Synergy
N-back training can improve trained and closely related working-memory skills, but broad IQ-transfer claims remain contested. This article reviews recent n-back studies, sleep-consolidation evidence and the IQ Mindware Trident G approach to transfer-oriented training.
New free Strategy Lab tool: turn a vague goal into your next useful test
The Next-Test Planner is being revised and is not currently linked from the public site.
Does Brain Training Work? What the Evidence Really Says
A careful evidence guide on task improvement, near transfer, far transfer, working memory, relational reasoning, strategy prompts, and delayed checks.
The Science of Learning Curves: Overcoming Plateaus and the Fluency Trap
Why learning plateaus happen, how to overcome a learning plateau, and how the fluency trap creates an illusion of competence during skill acquisition.
Fluid and Crystallized Intelligence: Why Smart People Keep Solving the Same Problems
Why fluid and crystallized intelligence helps explain repeated problem solving, weak compounding, and the need to turn insight into reusable skill.
AI and Knowledge Workers: The Real Challenge Is Cognitive Drift
Why AI pressure in knowledge work is not just about replacement, but about workload intensification, cognitive offloading, and the need to protect judgement.
The ORSAR Framework: How to Use AI Without Losing Your Mind
A five-step human-led protocol for using AI without surrendering judgement: Own, Refine, Stress-Test, Audit, and Re-write.
Human-Led AI Reasoning Protocol: 10-Day Challenge
A practical 5-step protocol to use AI without cognitive drift: own the question, refine, stress-test, audit, and rewrite with judgement.
The rise of cognitive elites: college, work and AI
How the college degree divide, elite universities, assortative matching, and AI are re-sorting the modern knowledge economy.
How To Do A Raven Matrices Test
A practical guide to Raven-style matrix reasoning tasks and a clean strategy loop for test-day execution.
The Most Effective Training Strategies For Dual N-back Working Memory Training
Session structure, progression rules, and carryover checks that matter more than chasing high N on a single day.
The 123 Sigma Rule: 1-2-3 Sigma Framing
How 1, 2, and 3 standard deviations from the mean are used for benchmark setting, rarity framing, and cautious interpretation.
The Science Behind the Emotional Dual N-back
A practical review of emotional-load training design, resilience aims, and conservative interpretation rules.
Why Far Transfer Is Harder Than It Looks
Why practice effects can be mistaken for broad cognitive gains, and why changed formats and delayed checks matter for transfer claims.
Jordan Peterson on IQ: A Methods-First Read
A neutral methods-first analysis of public IQ commentary and how to convert broad narratives into practical decisions.