{"id":2081,"slug":"tannenbaum-2015-meta-fear-appeals-broadly-effective","title":"Tannenbaum et al. 2015 — meta-analysis of 248 samples: fear appeals work, with efficacy","kind":"reference","scope":"business","status":"current","audiences":["kevin","candid-team"],"topics":["fear-appeal-efficacy-pairing"],"reference_body":"**Claim:** Tannenbaum et al. (2015, *Psychological Bulletin* 141(6):1178-1204), a meta-analysis of **127 articles / 248 independent samples (N=27,372)**: fear appeals had a moderate positive effect (**d≈0.29**), strengthened by efficacy statements, high susceptibility/severity, and one-time (vs repeated) recommended behaviors — and \"there are no identified circumstances under which they backfire and lead to undesirable outcomes\" when constructed with an efficacy/solution component.\n\n**Source:** Tannenbaum, Hepler, Zimmerman, Saul, Jacobs, Wilson, Albarracín 2015, *Psychological Bulletin*. Meta-analysis.\n\n**Confidence:** Verified.\n\n**Caveat:** Minority literature (Peters, Ruiter & Kok) argues threat under low efficacy backfires. Both views AGREE that the efficacy pairing is decisive — which is the actionable point.\n\n**Why this matters for Candid:** The widget can use frank difficulty assessments without fear of backfire — PROVIDED every difficulty signal ships with a feasible next step.","rationale_body":null,"metadata":null,"links":{"outgoing":[],"incoming":[{"slug":"research-brief-smb-widget-presenting-tiers-june-2026","title":"Research brief: SMB widget presentation layer — tiered results without overclaiming (June 2026)","kind":"reference","scope":"business","link_type":"relates-to"},{"slug":"rule-pair-hard-tier-with-feasible-next-step","title":"Rule — Every \"hard\" tier ships with a feasible, proximal first step","kind":"rule","scope":"business","link_type":"depends-on"}]},"created_at":"2026-06-23T19:16:03.458Z","updated_at":"2026-06-23T19:16:03.458Z"}