probability panel

Gallup

Gallup Panel gender-question methodology experiment (Phase 1) · Sep 2021 – Sep 17, 2021 · US national

Methodology

Pollster: Gallup independent
Sponsor: Gallup
Fielded: Sep 2021 – Sep 17, 2021
Population: adults
Sample size: 36,131
Sample frame: probability panel
Panel: Gallup Panel
Mode: self-administered web survey of Gallup Panel members
Margin of error: ±0.9 percentage points
Weighting: weighted to national demographic targets; Gallup Panel recruited by probability-based random sampling
Geography: US national
Base notes: three randomized experimental groups of roughly 12,000 each

Sources

Verification note. A three-way split-sample wording experiment on how to ask gender inclusively. Wordings, results and methodology read from Gallup's own methodology write-up. Included because the measurement decision it documents drives every later Gallup transgender prevalence estimate.

Figures below are transcribed from these documents. Where they disagree with the source, the source governs.

Questions asked (1)

Identity beliefsotherin a trend series

gender self-report with binary-only options (experimental version 1)

What is your gender?

Prefer not to say

1.4%

Nonbinary

0.4%

Gender not listed here

0.1%

Wording notes: binary-only options; no nonbinary or transgender category offered

tilts_restrictive — offering only Male/Female makes any nonbinary or trans respondent invisible except through 'prefer not to say'; this is the baseline Gallup was testing against

Every figure on this page is transcribed from the source linked above. How to read this data →