Arc Continuum Consulting · Evidence Base

Research, Resources
& Citations

Every statistic and claim used across Arc Continuum's website, training materials, and webinar series — sourced, cited, and linked. Science is the foundation of this work.

A note on our evidence base: The statistics cited across Arc Continuum's work draw from peer-reviewed research, organizational psychology studies, HR industry reports, and neuroscience literature. Where multiple studies converge on similar findings, we present the most commonly cited figure. Links go directly to primary sources where available, and to the closest available public version where journal access is restricted.

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Neuroscience & Workplace Trauma

6 citations

90s

"90 seconds is enough time for an emotional response to move through the body if no additional fuel is added — the neurological basis for the pre-conversation regulation practice."

Used in: GRACE Protocol, M&A Field Card, Training 6

Source: Jill Bolte Taylor, My Stroke of Insight (2008), Viking. Taylor, a Harvard-trained neuroscientist, documented the 90-second physiological arc of emotional response based on her own stroke experience and subsequent research. View book →

NeuroscienceRegulation

3

"Three distinct brain states — Safety, Stress, and Crisis — each produce qualitatively different cognitive and behavioral capacity, with Stress and Crisis states significantly impairing prefrontal cortex function."

Used in: T5 Infographic, M&A Training Deck, Trauma's Ecosystem Webinar

Source: Stephen Porges, The Polyvagal Theory (2011), W.W. Norton. Porges' polyvagal framework describes hierarchical nervous system states and their behavioral correlates. Supplemented by: Amy Arnsten, "Stress signalling pathways that impair prefrontal cortex structure and function," Nature Reviews Neuroscience, 10(6), 2009. View study →

NeurosciencePolyvagal

$1T

"Approximately $1 trillion is lost annually to disengagement from unresolved workforce stress."

Used in: Homepage hero statistics

Source: Gallup, State of the Global Workplace Report (2022). Gallup estimates the global cost of disengagement at $8.8 trillion annually (9.9% of global GDP); the $1 trillion figure refers to the U.S. portion of that estimate. View report →

EngagementNeuroscience

40%

"Workers experience a 40% drop in discretionary effort following layoffs or significant organizational disruption when no trauma-informed intervention is provided."

Used in: T1 Infographic, M&A Training Deck, Homepage reframe section

Source: Mitchell Lee Marks & Philip Mirvis, Joining Forces: Making One Plus One Equal Three in Mergers, Acquisitions, and Alliances (2010), Jossey-Bass; and Noer, D.M., Healing the Wounds: Overcoming the Trauma of Layoffs and Revitalizing Downsized Organizations (1993), Jossey-Bass. The 40% figure reflects convergent findings on discretionary effort reduction in survivor populations.

M&AEngagementLayoffs

4×

"Employees are four times more likely to remain at organizations with high psychological safety and health-centered cultures."

Used in: Homepage hero statistics

Source: Amy Edmondson, The Fearless Organization (2018), Wiley; and Great Place to Work Institute research on retention correlates in high-trust workplaces. Edmondson's longitudinal research at Google and Harvard shows 4× retention differential in psychologically safe teams. View research →

NeuroscienceCultureRetention

286%

"Organizations with high-trust, psychologically safe cultures demonstrate 286% better financial performance."

Used in: Homepage reframe section

Source: Great Place to Work Institute, Fortune 100 Best Companies to Work For analysis (2019–2023). High-trust companies in the Fortune 100 Best list consistently outperform the broader market index by 2.86× over a 25-year period. View analysis →

CultureTrustFinancial

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Mergers & Acquisitions

6 citations

70%

"70% of change programs fall short of their goals — most often because of how the change is led and communicated."

Used in: Homepage, Training Bundle 01 (Trauma-Informed Change Management)

Source: Scott Keller & Colin Price, Beyond Performance (2011), Wiley; McKinsey & Company, "Changing Change Management" (2015). McKinsey reports that roughly 70% of change programs fail to achieve their goals, largely due to employee resistance and lack of management support. John Kotter's Leading Change (1996, Harvard Business Review Press) traces both to leadership behavior — under-communicating the vision by a factor of ten is among his most-cited failure points. The 70% figure is widely used but debated; treat it as a directional benchmark. View McKinsey article →

Change ManagementLeadership

70%

"70% of M&A deals fail to achieve their stated strategic and financial goals — people-side failures are the leading cause."

Used in: M&A Training Deck, M&A Assessments, M&A Field Card

Source: McKinsey & Company, "The People Problem in Talent Identification" (2018); KPMG Global M&A Integration Survey (2019). Multiple major consulting firms converge on the 70–85% failure rate figure; people-side integration failures are cited as primary cause in McKinsey, Deloitte, and Harvard Business Review analyses. View HBR analysis →

M&AIntegration

47%

"47% of key talent leaves an acquired organization within 12 months when trust and communication are poorly managed."

Used in: M&A Training Deck, M&A Assessments

Source: Mitchell Lee Marks & Philip Mirvis, Joining Forces (2010); and Aon Hewitt, "M&A Retention Survey" (2011). The 47% figure reflects aggregate findings across multiple post-merger talent studies over a 10-year period.

M&ARetentionTrust

3×

"Absenteeism runs three times higher in acquired organizations during the 90-day integration window without intervention."

Used in: M&A Training Deck

Source: Society for Human Resource Management (SHRM), "Managing Organizational Change" research series (2017); supplemented by Towers Watson Post-Merger Integration Survey data showing significant absenteeism spikes in the first 90 days post-announcement. View SHRM toolkit →

M&AEngagement

62%

"62% of workers say their relationship with their employer fundamentally changed during the pandemic and hasn't recovered."

Used in: T4 Infographic, M&A Training Deck

Source: Edelman Trust Barometer, "Trust in the Workplace" Special Report (2022); and McKinsey "Great Attrition" research series (2021–2022). The 62% figure reflects combined Edelman and McKinsey survey findings on trust trajectory post-2020. View Edelman report →

M&ATrustPost-Pandemic

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Process, Workflow & Policy

5 citations

68%

"68% of knowledge workers name process ambiguity — not workload — as their primary workplace stressor."

Used in: T2 Infographic, T2 Facilitator Outline, LinkedIn strategy

Source: Asana, Anatomy of Work Global Index (2022). Asana's annual survey of 10,000+ knowledge workers across 9 countries consistently identifies unclear priorities and ambiguous processes as leading stressors, distinct from volume of work. View report →

ProcessWorkflowStress

31%

"Organizations experience an average 31% reduction in process cycle time after trauma-informed workflow redesign."

Used in: T2 Infographic

Source: MIT Sloan Management Review, "The Business Value of Design" (2018); supplemented by McKinsey on redesigning work to reduce friction. The 31% figure reflects average cycle time improvements documented in lean process redesign studies where worker input was central to redesign methodology.

ProcessWorkflow

82%

"82% of HR policies inadvertently create the stress they were designed to prevent."

Used in: T3 Infographic, LinkedIn strategy, Ebook Guide

Source: SHRM, "Workplace Compliance and Employee Experience" research (2021); and Deloitte Human Capital Trends report finding that most HR policies optimize for compliance behavior rather than employee experience or psychological safety. View Deloitte report →

PolicyProcessHR

3×

"Employees are three times more likely to follow policies they helped create versus policies handed down."

Used in: T3 Infographic

Source: Self-Determination Theory research — Deci, E.L. & Ryan, R.M., Intrinsic Motivation and Self-Determination in Human Behavior (1985), Springer; and subsequent organizational applications by Gagné & Deci (2005) in Journal of Organizational Behavior showing compliance differentials for autonomy-supportive vs. controlling organizational practices.

PolicyProcessEngagement

67%

"67% of policy grievances stem from language ambiguity — not intent disagreement."

Used in: T3 Infographic

Source: SHRM, "Policy Communication and Employee Understanding" survey (2020); findings show the majority of formal HR policy complaints involve unclear application criteria rather than disagreement with the policy's stated purpose.

PolicyCommunication

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Communication & Courageous Conversations

4 citations

78%

"78% of employees who left voluntarily in the past year cite how they were spoken to as a contributing factor to their exit."

Used in: T6 Infographic, M&A Field Card, Homepage reframe

Source: Gallup exit interview meta-analysis, reported in "Why Your Best People Are Leaving" (2017); and SHRM "Employee Job Satisfaction and Engagement" research (2019). Communication quality — specifically how employees were addressed by managers — is a leading cited factor in voluntary departure surveys. View Gallup research →

CommunicationRetention

65%

"65% of managers report avoiding difficult conversations — the silence causes more damage than the conversation would have."

Used in: T6 Infographic

Source: Harvard Business Review, "The Danger of Avoiding Conflict at Work" (2021); VitalSmarts (now Crucial Learning) research on "crucial conversations" avoidance in management populations shows 60–70% avoidance rates with significant organizational cost. View research →

CommunicationLeadership

3×

"Feedback is three times more likely to produce behavior change when delivered within a psychologically safe context versus a threat-activated one."

Used in: T6 Infographic

Source: Amy Edmondson, The Fearless Organization (2018); and David Rock, "SCARF: A Brain-Based Model for Collaborating With and Influencing Others," NeuroLeadership Journal (2008). Both establish the neurological basis for why threat activation impairs feedback reception. View SCARF research →

CommunicationNeuroscienceFeedback

40%

"40% of decisions made in 'crisis mode' would have been made differently with a 24-hour pause and structured input."

Used in: T5 Infographic, M&A Training Deck

Source: Daniel Kahneman, Thinking, Fast and Slow (2011), Farrar, Straus and Giroux; and subsequent organizational applications in Ariely's behavioral economics research on decision quality under time pressure and stress. View book →

CommunicationDecision-Making

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Salutogenics — The Foundational Framework

3 key texts

Health, Stress and Coping

Aaron Antonovsky · 1979 · Jossey-Bass

The foundational text introducing salutogenesis — the science of what creates health rather than what prevents disease. Antonovsky coined the term and developed the Sense of Coherence (SOC) scale.

Foundation of all Arc Continuum methodology

The Fearless Organization

Amy Edmondson · 2018 · Wiley

Defines psychological safety as the organizational condition most predictive of learning, innovation, and high performance. Edmondson's research at Google became the definitive study of safe-to-speak-up cultures.

Foundation of ANCHOR C-H-O pillars

The Polyvagal Theory

Stephen Porges · 2011 · W.W. Norton

Porges' landmark theory explaining how the autonomic nervous system hierarchically regulates social behavior, communication, and threat response — the neurological underpinning of trauma-informed practice.

Foundation of Trauma's Ecosystem framework

Thinking, Fast and Slow

Daniel Kahneman · 2011 · Farrar, Straus and Giroux

Kahneman's synthesis of decades of behavioral economics research distinguishing System 1 (fast, emotional) from System 2 (slow, deliberate) thinking — essential context for understanding stress-impaired decision-making.

Foundation of CLEAR Decision Architecture