Barratt Impulsiveness Scale (BIS-11)

1. Abstract

The Barratt Impulsiveness Scale (BIS-11) is the gold-standard, most extensively utilized self-report instrument designed to quantify the multifaceted psychological construct of impulsivity in both empirical behavioral research and clinical practice. Developed through more than four decades of iterative psychometric refinement led by Ernest S. Barratt and formalized in its current 30-item structure by Patton, Stanford, and Barratt in 1995, the instrument operationalizes impulsivity not as a monolithic personality trait, but as an orthogonal, multidimensional phenotypic architecture composed of three primary second-order factors: Attentional Impulsiveness (involving cognitive instability and intolerance of cognitive complexity), Motor Impulsiveness (characterized by spontaneous physical action devoid of forethought), and Nonplanning Impulsiveness (marked by a lack of prospective planning and an orientation toward the immediate present). The instrument consists of 30 self-evaluative assertions scored along an authentic 4-point Likert scale ranging from 1 (Rarely/Never) to 4 (Almost Always/Always), producing a total dimensional score between 30 and 120 alongside granular subscale scores. Across hundreds of independent normative, clinical, and cross-cultural cohorts, the BIS-11 has consistently demonstrated robust internal consistency (Cronbach’s α typically spanning .79 to .84 for total scores) and adequate test-retest stability (r = .83 over four-week intervals). It demonstrates exceptional construct, convergent, and predictive validity across psychiatric nosologies, notably in attention-deficit/hyperactivity disorder (ADHD), substance use disorders, borderline personality disorder, antisocial behavior, pathological gambling, and suicidal ideation. This comprehensive article provides an exhaustive psychometric, theoretical, structural, and clinical analysis of the BIS-11.

2. Keywords

Barratt Impulsiveness Scale, BIS-11, impulsivity measurement, motor impulsiveness, attentional impulsivity, nonplanning impulsiveness, psychometrics, factor analysis, self-report inventory, behavioral disinhibition, executive function, psychiatric assessment

3. Authors

The BIS-11 is the culmination of research initiated by Ernest S. Barratt, Ph.D. (1925–2006), a pioneer in behavioral neuroscience and neuropsychiatry at the Department of Psychiatry and Behavioral Sciences, University of Texas Medical Branch (UTMB) at Galveston. Barratt commenced systematic psychometric exploration of human impulsiveness in 1959 to separate impulsivity from anxiety within behavioral paradigms.

The definitive 11th revision was standardized, validated, and published by a collaborative research team:

• Jim H. Patton, Ph.D. — Department of Psychology and Neuroscience, Baylor University, Waco, Texas, USA.
• Matthew S. Stanford, Ph.D. — Department of Psychology and Neuroscience, Baylor University, Waco, Texas; later CEO of the Hope and Healing Center & Institute, Houston, Texas, USA.
• Ernest S. Barratt, Ph.D. — Department of Psychiatry and Behavioral Sciences, University of Texas Medical Branch at Galveston, Texas, USA.

Correspondence regarding the historical development of the scale has historically been centered through the Department of Psychiatry and Behavioral Sciences, UTMB Galveston, and ongoing academic psychometric inquiries continue through Dr. Matthew S. Stanford.

4. Purpose

The primary purpose of the Barratt Impulsiveness Scale (BIS-11) is to provide an empirically grounded, brief, and psychometrically validated psychometric index capable of assessing constitutional impulsiveness across healthy, experimental, and psychiatric populations. Historically, psychological literature conflated impulsiveness with generalized sensation-seeking, risk propensity, hyperactivity, or low neuroticism. The BIS-11 was engineered specifically to tease apart these distinct behavioral drivers, establishing an isolated metric for cognitive and behavioral disinhibition.

In clinical psychiatric settings, high impulsivity serves as a transdiagnostic hallmark and a core diagnostic criterion across multiple categories within the Diagnostic and Statistical Manual of Mental Disorders (DSM-5-TR). The BIS-11 is applied systematically to:

• Quantify Diagnostic Trait Severity: Identify phenotypic variation in neurodevelopmental syndromes such as attention-deficit/hyperactivity disorder (ADHD), where attentional and motor components diverge; cluster B personality pathology (borderline personality disorder and antisocial personality disorder); and impulse control disorders.
• Addiction and Relapse Vulnerability: Evaluate neurobehavioral deficits in substance-related and addictive disorders (e.g., alcohol dependence, cocaine dependence, opioid misuse, and pathological gambling), where elevated scores on the Nonplanning and Motor subscales forecast treatment dropout, vulnerability to acute cue-induced craving, and elevated rates of relapse.
• Risk Stratification: Measure suicidal and self-harming trajectories, violent recidivism in forensic correctional cohorts, and reckless engagement in health-compromising behaviors. Clinical suicidology relies on BIS-11 subscale profiles to discriminate between planned, lethal self-harm and reactive, non-planning suicidal gestures under intense emotional distress.

In basic cognitive neuroscience and psychopharmacological research, the BIS-11 functions as an objective self-report correlate for laboratory tasks probing cognitive control, such as the Go/No-Go task, Stop-Signal Reaction Time (SSRT) paradigms, the Iowa Gambling Task (IGT), and delay discounting protocols. By contrasting BIS-11 scores with electrophysiological markers (e.g., event-related potential P300 attenuation) and functional neuroimaging parameters (e.g., frontostriatal resting-state functional connectivity), researchers can map subjective self-evaluations directly onto underlying neurobiological substrates.

5. Psychological Construct

Impulsivity is conceptualized within the Barratt tradition as a predisposed biological vulnerability toward swift, unplanned reactions to internal or external stimuli without regard to negative psychological, interpersonal, or physiological consequences. Patton, Stanford, and Barratt (1995) established that this construct is hierarchically arranged, comprising three second-order factors, which are further divided into six first-order subfacets.

1. Attentional Impulsiveness (8 items)

Attentional Impulsiveness captures a respondent’s capacity to focus sustained mental effort, direct executive vigilance, and manage cognitive stability. Individuals exhibiting elevations in this dimension struggle to track complex cognitive processing, experience disruptive mental pacing, and display distractibility. It is subdivided into two first-order subcomponents:

• Attention: The ability to concentrate, tolerate prolonged lectures or technical tasks, and maintain mental focus without drifting (e.g., Item 5: “I don’t pay attention”; Item 9: “I concentrate easily” [reverse scored]).
• Cognitive Instability: The occurrence of rapid, intruding, extraneous thoughts that destabilize goal-directed reflection (e.g., Item 6: “I have ‘racing’ thoughts”; Item 26: “I often have extraneous thoughts when thinking”).

2. Motor Impulsiveness (10 items)

Motor Impulsiveness describes a biological tendency to act precipitously on the spur of the moment, translating fleeting behavioral impulses directly into physical output without an intervening stage of cognitive evaluation or inhibitory braking. This dimension mirrors pure behavioral disinhibition and restlessness, subdivided into two first-order subcomponents:

• Motor: Immediate physical action driven by transient impulses, characterized by spontaneous actions, physical squirming, and impulsive consumption (e.g., Item 2: “I do things without thinking”; Item 17: “I act ‘on impulse'”; Item 22: “I buy things on impulse”).
• Perseverance: An individual’s behavioral consistency and lifestyle stability, measured reversely through frequent, erratic lifestyle changes (e.g., Item 16: “I change jobs”; Item 21: “I change residences”; Item 24: “I change hobbies”).

3. Nonplanning Impulsiveness (12 items)

Nonplanning Impulsiveness represents a fundamental deficit in foresight, prospective cognitive simulation, and long-term planning. Individuals with high scores live predominantly in the immediate sensory present, demonstrating a profound disregard for future outcomes, delayed consequences, or financial security. Its two first-order subcomponents comprise:

• Self-Control: Methodical, disciplined forethought prior to embarking on tasks or vocational decisions (e.g., Item 1: “I plan tasks carefully” [reverse scored]; Item 8: “I am self-controlled” [reverse scored]; Item 13: “I plan for job security” [reverse scored]).
• Cognitive Complexity: Enjoyment of intellectual challenges, mental puzzles, and deep analytical engagement versus cognitive avoidance of mentally demanding scenarios (e.g., Item 15: “I like to think about complex problems” [reverse scored]; Item 29: “I like puzzles” [reverse scored]; Item 18: “I get easily bored when solving thought problems”).

6. Theoretical Framework

The theoretical architecture of the BIS-11 is rooted in physiological psychology, cybernetic behavioral regulation, and differential personality models. Ernest Barratt pioneered an integrative biological model asserting that human personality is shaped by continuous neurophysiological feedback loops operating between the limbic system, the reticular activating system, and the prefrontal cortex.

Barratt’s paradigm contrasted sharply with the early unidimensional models of Hans Eysenck, who originally conceptualized impulsiveness as a subsidiary element of Extraversion, and later migrated it under the umbrella of Psychoticism within his PEN (Psychoticism, Extraversion, Neuroticism) model. Barratt asserted that impulsiveness is psychometrically orthogonal to both Extraversion and Trait Anxiety (Neuroticism), operating via separate neurochemical and structural pathways.

The BIS-11 framework interfaces cleanly with several seminal models of behavioral neuroscience:

• Gray’s Reinforcement Sensitivity Theory (RST): Impulsivity reflects hypersensitivity of the Behavioral Approach System (BAS) coupled with selective hypofunction or structural failure of the Behavioral Inhibition System (BIS). While BAS drives reward pursuit, high BIS-11 scores highlight failures of the septo-hippocampal inhibitory network to intercept goal-directed action when cues of punishment or non-reward emerge.
• Dual-System Neurocognitive Models: Contemporary neuroscience conceptualizes impulsivity as an imbalance between two competing neural circuits: an automatic, hyper-responsive bottom-up system located in the ventral striatum, amygdala, and mesolimbic dopamine projections, and a top-down executive control system localized within the dorsolateral prefrontal cortex (dlPFC), anterior cingulate cortex (ACC), and ventrolateral prefrontal cortex (vlPFC). The BIS-11 captures breakdowns within both systems: Motor and Attentional subscales measure striatal and dopaminergic over-reactivity, while the Nonplanning subscale reflects failures of prefrontal executive projection.
• Dickman’s Impulsivity Model: Dickman bifurcated impulsivity into functional (rapid processing beneficial in time-critical environments) and dysfunctional (unintended negative behavioral outcomes) categories. The BIS-11 almost exclusively operationalizes dysfunctional impulsiveness, assessing instances where inadequate reflection produces functional degradation, occupational instability, and relational conflict.
• Whiteside & Lynam’s UPPS Model: The BIS-11 served as an empirical antecedent to the UPPS-P (Urgency, Premeditation, Perseverance, Sensation Seeking, Positive Urgency) framework. Comparative structural analysis indicates that BIS-11 Nonplanning corresponds to lack of Premeditation; Attentional Impulsiveness correlates with lack of Perseverance; and Motor Impulsiveness maps directly onto Urgency facets.

7. Validity

The validity of the BIS-11 has been rigorously substantiated across hundreds of psychometric investigations spanning clinical, civilian, student, and forensic cohorts worldwide.

Construct and Factorial Validity

Construct validity was initially confirmed by Patton, Stanford, and Barratt (1995) across three distinct groups: undergraduate students (N = 412), psychiatric inpatients (N = 248), and male prison inmates (N = 73). Principal components factor analysis with oblique rotations established the invariance of the three second-order dimensions across all groups. Confirmatory factor analytic (CFA) studies continue to support the tripartite model as superior to unidimensional alternatives, particularly when modeled as a bifactor structure or hierarchical second-order construct.

Convergent Validity

The BIS-11 demonstrates strong, theoretically coherent correlations with an array of validated psychometric and neurobehavioral instruments:

• Eysenck Impulsivity Questionnaire (I-7): Strong positive correlations (r values spanning .60 to .75) between the BIS-11 Total score and the I-7 Impulsiveness scale.
• UPPS-P Impulsive Behavior Scale: The BIS-11 Nonplanning subscale correlates robustly with UPPS-P Lack of Premeditation (r > .65), while BIS-11 Motor Impulsiveness correlates significantly with Negative Urgency (r > .55).
• Laboratory Behavioral Paradigms: Elevated BIS-11 Motor scores predict elevated commission errors on the Go/No-Go task, prolonged Stop-Signal Reaction Times (SSRT), and steep temporal discounting curves on delay discounting tasks, indicating an over-valuation of immediate rewards over long-term payoffs.

Discriminant Validity

The scale effectively discriminates impulsivity from conceptually adjacent yet distinct psychological constructs. The BIS-11 shares low to negligible correlations with general cognitive ability (IQ, r < .10), trait anxiety measures such as the Spielberger Trait Anxiety Inventory (STAI; r < .20), and social desirability inventories (e.g., Marlowe-Crowne Social Desirability Scale; r = -.12 to -.18). Furthermore, Zuckerman’s Sensation Seeking Scale (SSS-V) demonstrates only modest convergence (r ≈ .30), demonstrating that sensory risk exploration is empirically distinct from nonplanning and behavioral disinhibition.

Predictive and Criterion Validity

The predictive utility of the BIS-11 is documented in diverse clinical and behavioral settings:

• Substance Use Severity: Significant mean differences separate non-substance users from individuals meeting diagnostic criteria for alcohol, cocaine, or methamphetamine dependence, with BIS-11 total scores frequently exceeding clinical cutoffs (≥ 72) in actively dependent cohorts.
• Suicidology: In psychiatric emergency samples, higher scores on the Motor and Attentional subscales independently predict history of violent suicide attempts relative to passive suicidal ideation.
• Forensic Criminology: Incarcerated offenders classified with psychopathy or antisocial personality disorder display significantly elevated BIS-11 Motor and Nonplanning scores compared to healthy community controls, predicting institutional disciplinary infractions and post-release recidivism rates.

8. Reliability

The psychometric reliability of the BIS-11 has been evaluated across international translations and diverse clinical populations, demonstrating consistent stability and measurement precision.

Internal Consistency

In the seminal psychometric validation study by Patton et al. (1995), the BIS-11 total score yielded high internal consistency across all three original normative populations:

• Undergraduate Students: Cronbach’s α = .82
• Psychiatric Inpatients: Cronbach’s α = .83
• Prison Inmates: Cronbach’s α = .80

Subscale reliability coefficients across international validation studies demonstrate consistent patterns. Nonplanning Impulsiveness typically exhibits the highest internal consistency, with alpha coefficients ranging between .72 and .78. Attentional Impulsiveness yields coefficients between .70 and .76. Motor Impulsiveness, due to its behavioral heterogeneity (encompassing both rapid physical action and lifestyle inconsistency), displays slightly lower alpha values, generally falling between .59 and .69. In modern psychometric investigations reporting McDonald’s omega (ω), total scale omega values routinely exceed .83, demonstrating strong composite reliability.

Test-Retest Reliability

Temporal stability assessments indicate that the BIS-11 captures stable dispositional traits rather than transient emotional states:

• One-Month Retest Interval: Stanford et al. (2009) reported a test-retest correlation of r = .83 for the total score in healthy adults, with subscale coefficients of .72 (Attentional), .78 (Motor), and .75 (Nonplanning).
• Six-Month to One-Year Intervals: Longitudinal investigations among non-clinical adult populations exhibit retest coefficients between r = .68 and r = .74, indicating strong long-term trait stability in the absence of targeted psychological or pharmacological interventions.

9. Factor Analysis

The factorial structure of the Barratt Impulsiveness Scale has been the subject of extensive structural equation modeling (SEM) and psychometric investigation since its inception.

Exploratory Factor Analysis (EFA) — Patton et al. (1995)

Patton and colleagues initiated factor extraction via principal components analysis applied to a pool of prospective items administered to 412 undergraduate students. Following orthogonal (Varimax) and oblique (Promax) rotations, an initial scree analysis suggested an optimal primary resolution of six first-order factors: Attention, Cognitive Instability, Motor, Perseverance, Self-Control, and Cognitive Complexity. Item loadings on their respective primary factors ranged from .42 to .78, with cross-loadings suppressed below .30.

Subsequent second-order factor analysis of the correlation matrix between these six first-order factors definitively isolated three orthogonal second-order factors accounting for substantial cumulative variance:

• Second-Order Factor 1: Attentional Impulsiveness — Loaded primarily by Attention (eigenvalue = 4.07) and Cognitive Instability (eigenvalue = 1.34).
• Second-Order Factor 2: Motor Impulsiveness — Loaded by Motor (eigenvalue = 3.12) and Perseverance (eigenvalue = 1.21).
• Second-Order Factor 3: Nonplanning Impulsiveness — Loaded by Self-Control (eigenvalue = 4.88) and Cognitive Complexity (eigenvalue = 1.49).

Confirmatory Factor Analysis (CFA) & Modern Structural Models

Subsequent independent validation studies (e.g., Stanford et al., 2009; Vasconcelos et al., 2012) tested this structural model using CFA. While standard three-factor correlated models often show borderline global fit in large cohorts (e.g., RMSEA ≈ .065–.075, CFI ≈ .85–.89, TLI ≈ .84–.88), fit indices improve considerably when modeled as a bifactor model (Reise et al., 2013). In a bifactor specification, a general “Impulsivity” dimension directly accounts for the shared variance among all 30 items, while three specific orthogonal group factors capture the unique residual variance associated with Attentional, Motor, and Nonplanning behaviors. Under bifactor parameterization, model fit reaches conventional goodness-of-fit benchmarks (CFI > .93, TLI > .92, RMSEA ≤ .048).

10. Instrument / Measurement Tool

• Test Type: Psychometric self-report rating scale / Dimensional personality inventory
• Construct Measured: Trait impulsivity across three distinct second-order behavioral facets
• Format: Pen-and-paper or computerized digital survey; self-administered questionnaire
• Target Population: Adolescents (ages 14+) and adults across general, clinical, and forensic settings
• Administration Time: Approximately 5 to 10 minutes
• Number of Items: 30 items
• Response Scale: 4-point Likert scale: 1 = Rarely/Never, 2 = Occasionally, 3 = Often, 4 = Almost Always/Always
• Item Categorization & Factor Allocation:
  • Attentional Impulsiveness (8 items): Items 5, 6, 9, 11, 20, 24, 26, 28
  • Motor Impulsiveness (10 items): Items 2, 3, 4, 16, 17, 19, 21, 22, 23, 25
  • Nonplanning Impulsiveness (12 items): Items 1, 7, 8, 10, 12, 13, 14, 15, 18, 27, 29, 30
• Scoring Rules & Reverse Keying:
  • Eleven items are positively oriented toward control/planning and must be reverse-scored prior to total aggregation: Items 1, 7, 8, 9, 10, 12, 13, 15, 20, 29, and 30 (transformed such that 4 = 1, 3 = 2, 2 = 3, and 1 = 4).
  • All other items (Items 2, 3, 4, 5, 6, 11, 14, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28) are scored directly (1 = 1, 2 = 2, 3 = 3, 4 = 4).
  • Total score is calculated as the sum of all 30 recoded items, yielding a theoretical range from 30 to 120.
  • Subscale scores are generated by summing their respective recoded items: Attentional (range 8–32), Motor (range 10–40), and Nonplanning (range 12–48).
• Interpretive Guidelines:
  • Total Score 52–71: Normal limits / typical control-impulsivity equilibrium in general adult populations.
  • Total Score ≥ 72: Highly impulsive; indicative of significant behavioral disinhibition commonly found in clinical psychiatric cohorts (ADHD, bipolar disorder, substance dependence).
  • Total Score < 52: Extremely over-controlled, constricted, or indicating rigid cognitive styles.

11. Permissions & Fee and Test Year

The definitive 11th version of the Barratt Impulsiveness Scale was published in 1995 by Patton, Stanford, and Barratt. It followed decades of developmental test versions (including BIS-1 in 1959, BIS-5, BIS-7, and BIS-10 in 1983).

Licensing and Academic Accessibility:

• The BIS-11 is copyrighted by its original developers (Ernest S. Barratt, Matthew S. Stanford, and Jim H. Patton).
• The authors have traditionally made the BIS-11 available free of charge for non-commercial academic research and clinical use, provided that appropriate scholarly attribution and citation are maintained.
• Commercial use, pharmaceutical clinical trials, integration into commercial software applications, or proprietary assessments require formal licensing and written permission from the copyright holders or their institutional designees (e.g., through Dr. Matthew S. Stanford / Baylor University / UTMB Galveston).

12. References

• Barratt, E. S. (1959). Anxiety and impulsiveness related to psychomotor efficiency. Perceptual and Motor Skills, 9(3), 191–198. https://doi.org/10.2466/pms.1959.9.3.191
• Barratt, E. S. (1985). Impulsiveness subtraits: Arousal and information processing. In J. T. Spence & C. E. Izard (Eds.), Motivation, emotion, and personality (pp. 137–146). Elsevier Science Publishers.
• Dickman, S. J. (1990). Functional and dysfunctional impulsivity: Personality and cognitive correlates. Journal of Personality and Social Psychology, 58(1), 95–102. https://doi.org/10.1037/0022-3514.58.1.95
• Moeller, F. G., Barratt, E. S., Dougherty, D. M., Schmitz, J. M., & Swann, A. C. (2001). Psychiatric aspects of impulsivity. American Journal of Psychiatry, 158(11), 1783–1793. https://doi.org/10.1176/appi.ajp.158.11.1783
• Patton, J. H., Stanford, M. S., & Barratt, E. S. (1995). Factor structure of the Barratt Impulsiveness Scale. Journal of Clinical Psychology, 51(6), 768–774. https://doi.org/10.1037/a0032161
• Stanford, M. S., Mathias, C. W., Dougherty, D. M., Lake, S. L., Anderson, N. E., & Patton, J. H. (2009). Fifty years of the Barratt Impulsiveness Scale: An update and review. Personality and Individual Differences, 47(5), 385–395. https://doi.org/10.1016/j.paid.2009.04.008
• Vasconcelos, A. G., Malloy-Diniz, L., & Corrêa, H. (2012). Systematic review of psychometric properties of Barratt Impulsiveness Scale (BIS-11). Trends in Psychiatry and Psychotherapy, 34(4), 177–188. https://doi.org/10.1590/S2237-60892012000400003
• Whiteside, S. P., & Lynam, D. R. (2001). The Five Factor Model and impulsivity: Using a structural model of personality to understand impulsivity. Personality and Individual Differences, 30(4), 669–689. https://doi.org/10.1016/S0191-8869(00)00064-7

13. Items of the Scale (Questionnaire)