ARBIS-45: Instrument Development and Enhanced Pilot Validation Protocol

Author: David Humble
Affiliation: Sovereign Integrity Institute (SII)
Date: April 22, 2026
Document Type: Research Protocol / Instrument Development
Classification: Psychological Assessment / Psychometrics


Abstract

The Autonomous Regulation and Boundary Integrity Scale (ARBIS-45) is a 45-item multidimensional self-report instrument designed to assess nine domains of self-regulation, autonomy, and interpersonal boundary functioning. The instrument integrates constructs from Polyvagal Theory, Locus of Control, emotional regulation research, and boundary integrity theory.

The nine domains assessed are: (1) Autonomic & Emotional Regulation, (2) Response Inhibition (Non-Reactivity), (3) Social-Cognitive Pattern Recognition, (4) Documentation Practices, (5) Boundary Integrity, (6) Co-Regulation Capacity, (7) Outcome Detachment, (8) Sustained Regulation Capacity, and (9) Self-Ownership.

This paper presents the finalized item pool, scoring procedures, and an enhanced pilot validation protocol incorporating internal consistency reliability, test–retest reliability, exploratory and confirmatory factor analysis, and convergent and discriminant validity. The ARBIS-45 is intended for research use in resilience, stress adaptation, and autonomy-related psychological functioning.


1. Introduction

1.1 Theoretical Background

Autonomous regulation refers to the capacity to maintain physiological stability, emotional control, and behavioral independence under conditions of stress or external pressure.

This construct draws from:

  • Polyvagal Theory — autonomic flexibility and vagal tone
  • Locus of Control — internal vs. external control attribution
  • Emotional regulation frameworks — modulation of affective responses
  • Boundary integrity research — protection of psychological space

While these domains are well-studied independently, no unified instrument integrates them into a single multidimensional framework.


1.2 Instrument Objective

The ARBIS-45 was developed to:

  1. Measure nine interrelated domains of regulation and autonomy
  2. Provide factor-level and total scores for profiling
  3. Enable pre/post intervention assessment
  4. Support research on resilience and adaptive functioning

2. Instrument Structure

2.1 Factor Model

FactorDomain
F1Autonomic & Emotional Regulation
F2Response Inhibition
F3Pattern Recognition
F4Documentation Practices
F5Boundary Integrity
F6Co-Regulation Capacity
F7Outcome Detachment
F8Sustained Regulation Capacity
F9Self-Ownership

Each factor contains 5 items (total = 45 items).


2.2 Response Format

5-point Likert scale:

ScoreLabel
0Never
1Rarely
2Sometimes
3Often
4Always

Timeframe: Past 30 days


3. Scoring

MetricRange
Factor score0–20
Total score0–180

Interpretation (Preliminary)

RangeInterpretation
0–60Low regulation/autonomy
61–120Moderate
121–180High

4. Enhanced Pilot Validation Study

4.1 Study Design

ParameterSpecification
DesignCross-sectional + test–retest subset
Sample sizen = 180–250
Subsamplen ≥ 60 (test–retest)
Age range18–65
RecruitmentOnline + convenience sampling
Duration~15 minutes

4.2 Measures

Primary Instrument

  • ARBIS-45

Convergent Validity

ConstructMeasureExpected
Emotional regulationDERSNegative
StressPerceived Stress ScaleNegative
ResilienceBrief Resilience ScalePositive
Locus of controlRotter ScalePositive

Discriminant Validity

ConstructMeasureExpected
Social desirabilityMarlowe-Crowne Social Desirability ScaleWeak correlation (r ≤ .25)
NarcissismNarcissistic Personality InventoryWeak/negative
AnxietyGAD-7Moderate negative

5. Statistical Analysis Plan

5.1 Reliability

MetricCriterion
Cronbach’s alpha≥ 0.70 per factor
Total scale alpha≥ 0.85

5.2 Test–Retest Reliability

  • Method: Intraclass Correlation Coefficient (ICC)
  • Interval: 2–3 weeks
  • Target: ICC ≥ 0.70

5.3 Factor Analysis

Step 1: Exploratory Factor Analysis (EFA)

  • Extraction: Principal Axis Factoring
  • Rotation: Oblique (Promax)

Step 2: Parallel Analysis

  • Determines optimal factor number
  • Prevents over-extraction

Step 3: Confirmatory Factor Analysis (CFA)

  • Split sample:
    • n ≈ 120 (EFA)
    • n ≈ 120 (CFA)

5.4 Validity Testing

TypeMethodCriterion
ConvergentPearson r≥ .30
DiscriminantPearson r≤ .25
Model fit (CFA)CFI, TLI, RMSEAStandard thresholds

6. Hypotheses

  • H1: ARBIS total positively correlates with resilience (r ≥ .40)
  • H2: F1 negatively correlates with stress (r ≤ −.40)
  • H3: F9 positively correlates with internal locus of control (r ≥ .35)
  • H4: F5 negatively correlates with emotional dysregulation (r ≤ −.40)
  • H5: ARBIS shows weak correlation with social desirability (r ≤ .25)

7. Bias Control

7.1 Social Desirability

Controlled via inclusion of the Marlowe-Crowne Social Desirability Scale

7.2 Common Method Bias

  • Statistical check: Harman’s single-factor test
  • Design note: Future multi-method validation recommended

8. Limitations

LimitationMitigation
Self-report biasAdd behavioral/physiological validation
Cross-sectional designLongitudinal follow-up planned
Factor inflation riskParallel analysis + CFA
Sampling biasReplication in diverse populations

9. Future Directions

9.1 ARBIS-30 Short Form

Item reduction based on:

  • Factor loadings
  • Item-total correlations

9.2 Longitudinal Validation

  • Stability over time
  • Sensitivity to intervention

9.3 Physiological Correlates

  • Heart Rate Variability (HRV)
  • Cortisol response

9.4 Cross-Cultural Validation

  • Translation and invariance testing

10. Discussion

10.1 Positioning

The ARBIS-45 is best understood as:

A multidimensional autonomy and regulation capacity index

It is not:

  • A diagnostic tool
  • A personality inventory

10.2 Contribution

ARBIS-45 extends existing instruments by integrating:

  • Behavioral (documentation, boundaries)
  • Cognitive (pattern recognition)
  • Physiological (regulation)
  • Interpersonal (co-regulation)

No existing scale combines these domains into a unified structure.


11. Conclusion

The ARBIS-45 provides a structured, multidimensional assessment of regulation, autonomy, and boundary integrity. The enhanced pilot validation protocol incorporates reliability testing, factor validation, and bias controls necessary for rigorous psychometric evaluation.

Pending empirical validation, the instrument has potential applications in:

  • Psychological research
  • Resilience studies
  • Intervention assessment

12. References (Selected)

Cohen et al. (1983). Perceived Stress Scale
Gratz & Roemer (2004). DERS
Rotter (1966). Locus of Control
Smith et al. (2008). Brief Resilience Scale
Porges (2011). Polyvagal Theory
Nartova-Bochaver (2014). Psychological sovereignty


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