Individual skill

cognitive-task-analysis

Designing and analyzing cognitive tasks — Stroop, n-back, task-switching, and process-pure measurement.

skills/cognitive-task-analysis/SKILL.md

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## Overview

cognitive-task-analysis covers the classic experimental paradigms of cognitive psychology — Stroop,
flanker, n-back, task-switching, stop-signal, attentional blink — and how to analyze them so the
numbers reflect the intended process. The central problem: no task is process-pure, so every
"cognitive measure" is contaminated by general speed, strategy, and task-specific demands. This
skill is about designing tasks and analyses that isolate processes anyway.

## When to use

- Choosing a paradigm for a construct: inhibition, working memory, shifting, sustained attention.
- Task design: trial counts, congruency ratios, timing, practice blocks.
- Computing standard indices: Stroop interference, switch costs, stop-signal reaction time (SSRT).
- Difference scores: when they're justified and why they're often unreliable.