Individual skill
experimental-design-psych
Designing psychology experiments — variables, controls, randomization, counterbalancing, and preregistration.
skills/experimental-design-psych/SKILL.md
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## Overview
experimental-design-psych covers how to design behavioral experiments that can actually answer the
question asked: defining constructs operationally, choosing between- vs within-subjects designs,
controlling confounds, counterbalancing order effects, and preregistering the plan before data
collection. Good design is cheaper than any statistical rescue — no analysis fixes a confounded
experiment.
## When to use
- Turning a research question into a testable design: IVs, DVs, operational definitions.
- Choosing between-subjects, within-subjects, or mixed designs.
- Counterbalancing: Latin squares, ABBA, randomization for order/fatigue/practice effects.
- Controls: placebo, active control, yoked control, sham conditions.