Sample Size and Power Analysis

Defensible sample-size calculations with a ready-to-paste justification paragraph

What you get:
- Basic: Sample-size calculation for one study design; Effect-size and assumption table with sources
- Standard: everything in Basic plus Power curves and sensitivity analysis; Design for SEM, regression or group comparison
- Premium: everything in Standard plus Methods-section justification paragraph; Reproducible Python code and a sampling plan

Scope limits:
- Basic: up to 1 study design
- Standard: up to 2 study designs
- Premium: up to 3 study designs

What to provide when ordering:
- Research question and design
- Planned tests or model
- Population and access constraints

Limits and responsibilities:
- All references, figures and facts must be verified by you before use
- Large data and heavy jobs must be run and verified on your own computer or server
- Work beyond these limits or extra revisions is quoted separately

After ordering, submit the required details and files in the My Services section of your account. Delivery files appear there when the work is done, and you can request revisions if needed.

• Delivery on time
• Direct messaging
• Confidentiality assured