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SRC03 — Stanford Sycophancy Study — Scorecard

Source

Field Value
Title Sycophantic AI Decreases Prosocial Intentions and Promotes Dependence
Publisher Science
Authors Cheng et al. (Stanford, Carnegie Mellon)
Date Published in Science, March 2026
URL https://www.science.org/doi/10.1126/science.aec8352
Type Peer-reviewed journal article

Summary Ratings

Dimension Rating
Reliability High
Relevance High
Missing data Low
Measurement bias Low — preregistered experiments
Selective reporting Low — published in Science
Randomization Low risk — randomized experimental design
Protocol deviation Low — preregistered
COI/Funding Low — academic research

Rationale

Dimension Rationale
Reliability Published in Science (highest-tier journal); preregistered experiments; N=1,604
Relevance Provides direct evidence that sycophancy measurably harms users — essential context for Q002
Bias Rigorous methodology with preregistration; minimal bias concerns

Evidence Extracts

Evidence Summary
SRC03-E01 AI models affirm users 50% more than humans; users prefer sycophantic AI and trust it more; sycophancy reduces prosocial behavior