{"id":1427,"slug":"patall-cooper-robinson-2008-choice-intrinsic-motivation-meta","title":"Patall, Cooper & Robinson (2008), Psychological Bulletin (41 studies meta) — choice enhances intrinsic motivation, effort, performance, perceived competence; moderated (2-4 choices, no extrinsic reward, children > adults)","kind":"reference","scope":"business","status":"current","audiences":["kevin","smb-owner","candid-team"],"topics":["interactive-tool-mechanisms","self-determination-theory"],"reference_body":"**Claim:** **Patall, Cooper & Robinson (2008), *Psychological Bulletin* 134(2), 270-300** — **41-study meta-analysis**: providing choice enhanced **intrinsic motivation, effort, task performance, and perceived competence**.\n\n**Source:** Patall, Cooper & Robinson (2008), Psychological Bulletin.\n\n**Confidence:** Verified (meta-analysis).\n\n**Caveat:** Effect was **modest and moderated** — stronger for instructionally irrelevant choices, when **2-4 successive choices were given**, when **no extrinsic reward followed**, and for **children more than adults**. **Too much choice or choice that adds burden can wash out the benefit.**\n\n**Why this matters for Candid:** Quantifies and bounds the \"let users choose\" lever. Practical: **2-4 meaningful choices in a tool**; not 12. Anchors [[rule-support-agency-and-competence-not-choice-overload]].","rationale_body":null,"metadata":null,"links":{"outgoing":[{"slug":"deci-ryan-2000-self-determination-theory-foundational","title":"Deci & Ryan (1985, 2000) Self-Determination Theory — intrinsic motivation supported by three needs: autonomy + competence + relatedness","kind":"reference","scope":"business","link_type":"depends-on"}],"incoming":[{"slug":"research-brief-engagement-mechanisms-top-up-smb-june-2026","title":"Research notes (capture-layer top-up): why interactive online tools are psychologically engaging — six additional mechanisms (June 2026)","kind":"research-notes","scope":"business","link_type":"relates-to"},{"slug":"caveats-engagement-mechanisms-top-up-mechanism-vs-business-outcome","title":"Caveats for the engagement-mechanisms top-up: strong independent evidence sits at the MECHANISM level not the business-outcome level; nearly every effect is moderated","kind":"reference","scope":"business","link_type":"relates-to"},{"slug":"rule-support-agency-and-competence-not-choice-overload","title":"R3 — Support agency + competence (2-4 meaningful choices + positive contextual feedback); avoid choice overload and frustration; let the user DO the work","kind":"rule","scope":"business","link_type":"depends-on"}]},"created_at":"2026-06-20T19:24:15.930Z","updated_at":"2026-06-20T19:24:15.930Z"}