Acquiescence bias — over 100 studies; affects ~10-20% of responses

Summary

Claim: Over 100 studies show respondents tend to agree with statements regardless of content. Estimates of the affected proportion of responses run ~10-20%.

Source: Traceable to Saris/Krosnick literature; replicated widely.

Confidence: Verified.

Why this matters for Candid: The single biggest reason to forbid agree/disagree formats entirely (R2 — Never use agree/disagree statements in the widget). Even a well-meaning respondent will agree-bias at ~15% — enough to systematically flatter the widget's self-image of every business it scores.