Estimate Sample Size With Deploy Power

The Power card in Deploy helps translate a survey design into practical sample-size checks. Use it to compare planned completes, condition arms, quota cells, and the smallest cell you expect to analyze.

Power planning should happen before launch. The card helps you see whether the collection target is realistic for the design you built in Flow and the quotas you configured in Deploy.

1. Step 1: Open Deploy. Review Power after the main Flow design and quotas exist.

   Step 1: Open Deploy

2. Step 2: Choose Set N when you know the total sample. Enter the expected total completes to see how they distribute across arms or cells.

3. Step 3: Choose Min N when the smallest cell matters most. Work backward from the minimum usable n per cell to estimate the total collection target.

4. Step 4: Compare the Sankey and cell counts. Look for cells that become too small after routing, eligibility, or quotas.

5. Step 5: Adjust Flow or quotas before launch. If the design leaves an important cell underpowered, revise allocation, eligibility, or target counts before collecting data.

   Step 5: Check Flow

• Condition arms are named clearly and match the analysis plan.
• Assignment percentages reflect the intended design.
• Quota targets do not conflict with the planned sample allocation.
• Screeners and early exits are accounted for when estimating completes.
• The smallest meaningful analysis cell is large enough for the planned comparison.

Use actual response counts to update expectations. If one arm or cell is filling slowly, check whether the issue is recruitment, eligibility, quotas, routing, or an unintended Flow path before changing the survey.

• Sample Allocation Across Condition Arms
• Create Experimental Conditions
• Set Survey Quotas
• Panel Recruitment for Surveys