C006 — Assessment¶


Research	R0007 — AI Cognitive Amplifier
Run	2026-03-20
Claim	C006

BLUF¶

Confirmed. Felps, Mitchell, and Byington (2006) published in Research in Organizational Behavior, Vol. 27, pp. 175-222. Their study of ~40 groups found a single bad apple reduces team performance by 30-40%. The paper combined literature review with experimental evidence, so 'demonstrated experimentally' is accurate though the paper is broader than just an experiment.

Probability¶

Rating: Almost certain (95-99%)

Confidence in assessment: High

Confidence rationale: Based on web-accessible evidence from primary and secondary sources.

Reasoning Chain¶

Felps, Mitchell, and Byington studied approximately 40 groups of 4-5 people with planted actors displaying toxic behaviors (jerk, slacker, depressive pessimist). A single negative member reduced team performance by 30-40%. Published in Research in Organizational Behavior, Vol. 27, pp. 175-222 (2006). [SRC01-E01, High reliability, High relevance]

Evidence Base Summary¶

Source	Description	Reliability	Relevance	Key Finding
SRC01	How, When, and Why Bad Apples Spoil the Barrel	High	High	See BLUF

Collection Synthesis¶

Dimension	Assessment
Evidence quality	Medium to Robust
Source agreement	High
Source independence	Assessed per claim
Outliers	None identified

Detail¶

Felps, Mitchell, and Byington studied approximately 40 groups of 4-5 people with planted actors displaying toxic behaviors (jerk, slacker, depressive pessimist). A single negative member reduced team performance by 30-40%. Published in Research in Organizational Behavior, Vol. 27, pp. 175-222 (2006).

Gaps¶

Missing Evidence	Impact on Assessment
Full-text access to primary sources	Low to Moderate

Researcher Bias Check¶

Declared biases: No researcher profile provided.

Influence assessment: Standard claim verification.

Cross-References¶

Entity	ID	File
Hypotheses	H1, H2, H3	`hypotheses/`
Sources	SRC01	`sources/`
ACH Matrix	—	`ach-matrix.md`
Self-Audit	—	`self-audit.md`