Study Design (psci-study-design)

Psychological Science expects studies that are adequately powered, transparently planned, and robust to researcher degrees of freedom. Authors must justify sample size (a formal power analysis where appropriate). This skill hardens the design before data collection.

When to trigger

• Planning a study or a multi-study package
• Writing a preregistration / pre-analysis plan or a Registered Report Stage 1
• A reviewer questioned power, design, confounds, or analytic flexibility
• Justifying sample size and stopping rules

Design standards