Disgust Scale – Revised (DS-R)

Abstract

The Disgust Scale – Revised (DS-R) is an internationally recognized, psychometrically refined self-report instrument designed to quantify individual differences in disgust sensitivity across distinct evolutionary and behavioral domains. Developed through the structural modification and psychometric optimization of Haidt, McCauley, and Rozin’s (1994) original 32-item Disgust Scale (DS), the DS-R was established by Olatunji et al. (2007) to rectify identified factor instability, poor item loadings, and suboptimal psychometric properties. Comprising 25 scored items (alongside two embedded catch items used to detect inattentive responding), the instrument is structured across two distinct rating sections: Part 1 utilizes a 4-point agreement scale assessing self-descriptive behaviors and beliefs, while Part 2 employs a 4-point evaluative scale assessing affective disgust reactivity to specific eliciting scenarios.

Confirmatory factor analytic investigations consistently support a hierarchically organized three-factor solution comprising: (1) Core Disgust (12 items), which indexes oral defense, pathogen avoidance, visceral body products, and primitive protective reactions against ingestion; (2) Animal Reminder Disgust (8 items), capturing apprehensions linked to human mortality, anatomical vulnerability, animal nature, and violations of the physical body envelope; and (3) Contamination Disgust (5 items), evaluating interpersonal and object-mediated transmission of physical or symbolic impurities. The DS-R exhibits robust psychometric integrity across both clinical and non-clinical populations, demonstrating strong internal consistency (Cronbach’s alpha typically ranging from .84 to .89 for the total score, and .70 to .87 across subscales) and solid 10-week test-retest reliability (r = .71 to .76). Construct, convergent, and discriminant validities are well-established, with DS-R scores uniquely predicting contamination-related Obsessive-Compulsive Disorder (OCD) symptoms, blood-injection-injury (BII) phobia severity, eating pathology, health compliance, and consumer reactions to novel foods or contaminated goods, over and above general trait anxiety and negative affectivity.

Keywords

Disgust Scale – Revised, DS-R, disgust sensitivity, Core Disgust, Animal Reminder Disgust, Contamination Disgust, psychometrics, obsessive-compulsive disorder, blood-injection-injury phobia, evolutionary psychology

Authors

The Disgust Scale – Revised (DS-R) was developed by a consortium of clinical psychologists and psychometric researchers led by Bunmi O. Olatunji. The collaborative research team and their institutional affiliations at the time of the instrument’s definitive psychometric validation include:

• Bunmi O. Olatunji, Ph.D. — Department of Psychology, Vanderbilt University, Nashville, Tennessee, United States.
• Nathan L. Williams, Ph.D. — Department of Psychiatry and Behavioral Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States.
• David F. Tolin, Ph.D., ABPP — Anxiety Disorders Center, The Institute of Living, Hartford Hospital, Hartford, Connecticut; Department of Psychiatry, University of Connecticut School of Medicine, Farmington, Connecticut, United States.
• Jonathan S. Abramowitz, Ph.D., ABPP — Department of Psychology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States.
• Craig N. Sawchuk, Ph.D., LP — Department of Psychiatry and Psychology, Mayo Clinic, Rochester, Minnesota, United States.
• Jeffrey M. Lohr, Ph.D. — Department of Psychological Science, University of Arkansas, Fayetteville, Arkansas, United States.
• Lisa S. Elwood, Ph.D. — School of Psychological Sciences, University of Indianapolis, Indianapolis, Indiana, United States.

Purpose

The fundamental purpose of the Disgust Scale – Revised (DS-R) is to provide an empirically sound, theoretically coherent, and psychometrically validated measure of trait disgust sensitivity. Disgust sensitivity refers to the enduring predisposition of an individual to experience the basic emotion of disgust when confronted with potential contaminants, visceral human or animal materials, sexual transgressions, corpses, or violations of physical hygiene. While early psychological inquiry frequently subsumed disgust under general trait anxiety, negative affectivity, or neuroticism, evolutionary and experimental research over the past three decades has firmly demonstrated that disgust constitutes a discrete emotion with distinct physiological signatures (such as parasympathetic activation and nausea), characteristic behavioral action tendencies (distancing, expulsive responses, and avoidance), and unique cognitive appraisals.

In clinical psychology and psychiatry, the DS-R serves as a vital diagnostic, predictive, and evaluative tool. Elevated disgust sensitivity is recognized as a key vulnerability factor in the etiology and maintenance of several psychological disorders. Specifically, research demonstrates that individuals with contamination-themed Obsessive-Compulsive Disorder (OCD) frequently engage in compulsive washing and sterilization not merely to avert catastrophic bacterial illnesses, but to neutralize an overwhelming internal state of affective disgust or mental contamination. Similarly, specific phobias—most notably blood-injection-injury (BII) phobia and small animal/spider phobias—are mediated extensively by disgust rather than classical fear. Individuals presenting with BII phobia exhibit a vasovagal syncope response (fainting) that is uniquely elicited by disgust-inducing stimuli such as open wounds, mutilation, and blood. In clinical trial settings, measuring pre- and post-treatment DS-R scores enables clinicians to assess whether exposure therapies successfully extinguish disgust reactions, which often decay at a significantly slower rate than fear responses.

Beyond psychiatric nosology, the DS-R has extensive utility in behavioral medicine, consumer psychology, public health, and social psychology. In consumer research, the instrument predicts consumer avoidance of novel or foreign food items (food neophobia), aversion to recycled or reprocessed products (e.g., wastewater treatment systems), and negative reactions toward health packaging displaying graphic physiological damage. In public health, individual differences in DS-R dimensions forecast adherence to sanitation directives, hand hygiene habits, vaccine uptake, and compliance with pandemic mitigation strategies. Social psychologists rely on the DS-R to investigate how basic somatic disgust mechanisms are co-opted to underpin socio-moral attitudes, intergroup prejudice, and stigmatization of outgroups perceived as physical or symbolic vectors of impurity.

Psychological Construct

The psychological construct evaluated by the DS-R is multidimensional disgust sensitivity, defined as the subjective threshold and emotional magnitude with which an individual perceives and evaluates specific disgust elicitors. The scale measures three correlated yet structurally distinct latent dimensions identified through extensive exploratory and confirmatory factor analysis:

1. Core Disgust

Core Disgust represents the phylogenetically oldest component of the disgust emotion, serving primarily as an oral defense mechanism designed to prevent the oral incorporation or close physical contact with pathogens, spoiled organic substances, and visceral waste products. Elicitors loading on this factor center on body excretions (feces, urine, mucus, vomit), food deterioration (rotting meat, spoiled milk, maggots), and infectious agents (open sores, warts, unhygienic individuals). Core disgust is characterized by an acute physical sense of revulsion, gastrointestinal queasiness, nausea, and the visceral impulse to expel or purge the offensive substance. Within the DS-R, items capturing Core Disgust (e.g., encountering maggots in a garbage pail, bad breath, open facial sores, or drinking spoiled milk) reflect this primary disease-avoidance and pathogen-neutralization module.

2. Animal Reminder Disgust

Animal Reminder Disgust reflects cognitive appraisals and emotional revulsion toward stimuli that confront humans with their base biological, animalistic origins and inevitable mortal vulnerability. Rooted theoretically in Terror Management Theory (TMT) and existential psychology, this construct posits that human beings construct cultural and symbolic systems to distinguish themselves from animals and suppress the terrifying awareness of physical decay and death. Stimuli that violently breach this psychological buffer elicit intense animal reminder disgust. These elicitors encompass three primary subdomains: (a) death and corpses (e.g., touching a dead body, seeing a dead bird, walking through a cemetery), (b) body envelope violations (e.g., visible anatomical dissections, severe facial scarring, preserved biological specimens, or prosthetic limbs), and (c) atypical or taboo sexual couplings. By distancing oneself from these stimuli, the individual psychologically reaffirms human supremacy over visceral nature and suppresses mortality salience.

3. Contamination Disgust

Contamination Disgust represents an advanced cognitive-affective mechanism that regulates physical and symbolic contagion. It operates under the mental heuristics of magical contagion thinking—namely, the anthropological “law of contagion” which dictates that physical contact causes a permanent transfer of invisible essences or spiritual/physical impurities between objects and persons (i.e., “once in contact, always in contact”). Contamination disgust is activated by indirect exposure, shared items, or social proximity where infectious or moral contaminants might be transmitted without overt physical filth. Items comprising this factor in the DS-R evaluate intense apprehension regarding shared beverages (e.g., accidentally drinking from a can previously used by a stranger), contact with individuals exhibiting respiratory symptoms (e.g., a student with a head cold), or indirect physical touch in public settings. This factor is the most sensitive predictor of washing and cleansing rituals in clinical obsessive-compulsive symptomatology.

Theoretical Framework

The conceptual architecture of the DS-R is anchored in the biocultural evolutionary theory of disgust formulated by Paul Rozin, Jonathan Haidt, and Clark R. McCauley, alongside subsequent structural refinements from empirical cognitive psychopathology.

Evolutionary Pathogen Avoidance and the Behavioral Immune System

From an evolutionary perspective, disgust evolved from a primitive gustatory rejection response—termed distaste—into a sophisticated behavioral defense system known as the behavioral immune system (Schaller & Park, 2011). While the physiological immune system detects and neutralizes pathogens once they have penetrated internal biological boundaries, the behavioral immune system functions proactively to prevent initial contamination. Disgust is the central affective engine of this system. It produces rapid sensory detection, emotional revulsion, behavioral withdrawal, and prophylactic hygiene habits, thereby drastically reducing exposure to deadly bacteria, viruses, parasites, and toxins. The Core Disgust and Contamination Disgust dimensions directly map onto these functional anti-parasite and disease-avoidance evolutionary adaptations.

Existential Defense and Terror Management Theory

The evolutionary framework was expanded by Rozin, Haidt, and McCauley (2000) to account for why disgust is triggered by stimuli that carry no obvious pathogenic hazard, such as preserved medical specimens, autopsies, amputated limbs, or unconventional sexual partnerships. Integrating Terror Management Theory (Greenberg, Pyszczynski, & Solomon, 1986), the authors argued that human beings experience existential terror when reminded that they are mortal, biological animals driven by primal drives, biological decay, and inevitable demise. Humans elevate their existence through culture, ethics, and symbolic meaning; when this symbolic barrier is punctured by encounters with viscera, corpses, blood, or animalistic sexuality, the individual experiences Animal Reminder Disgust as an automatic defensive reaction to restore psychological separation from animal mortality.

Psychometric Refinement: From Eight Domains to Three Robust Factors

The original Disgust Scale developed by Haidt et al. (1994) conceptualized disgust across eight distinct domains: food, animals, body products, sex, envelope violations, death, hygiene, and magical contamination. However, extensive psychometric investigations demonstrated that these eight putative domains failed to emerge as distinct, replicable empirical dimensions in factor analysis. Cross-loadings were pervasive, internal consistencies were poor (some subscale alphas fell below .40), and certain items exhibited negative item-total correlations. Olatunji and colleagues (2007) conducted a series of large-scale exploratory and confirmatory factor analyses, demonstrating that the eight theoretical domains cleanly collapse into three psychometrically sound, higher-order latent factors: Core Disgust, Animal Reminder Disgust, and Contamination Disgust. This three-factor model preserves the conceptual richness of Rozin and colleagues’ theoretical framework while providing the structural parsimony, stability, and reliability required for robust empirical measurement.

Validity

The construct, convergent, discriminant, and criterion-related validity of the Disgust Scale – Revised has been verified across dozens of independent empirical investigations involving clinical, university, and community cohorts globally.

Convergent Validity

The DS-R demonstrates robust convergent validity through moderate to high correlations with other validated measures of disgust reactivity, somatic sensitivity, and contamination anxiety. DS-R scores correlate substantially with the Disgust Emotion Scale (DES; r = .65 to .74) and the Disgust Propensity and Sensitivity Scale – Revised (DPSS-R; r = .58 to .68). In experimental settings, higher DS-R scores significantly predict elevated subjective disgust ratings, facial electromyographic (EMG) levator labii muscle activity, autonomic galvanic skin responses, and shorter behavioral avoidance latencies when participants are exposed to laboratory-based behavioral approach tasks (BATs) involving real disgust elicitors (e.g., handling synthetic vomit, touching preserved biological specimens, or examining uncleaned toilet fixtures).

Discriminant Validity

A critical psychometric strength of the DS-R is its demonstrated discriminant validity against trait anxiety, generalized fear, and broad negative affectivity. In validation studies, while the DS-R correlates moderately with general negative affect measures such as the Beck Depression Inventory-II (BDI-II) and the State-Trait Anxiety Inventory (STAI; r = .25 to .35), structural equation modeling confirms that the DS-R latent factors remain clearly distinct from neuroticism and trait anxiety. Most importantly, regression and partial correlation analyses reveal that DS-R scores account for significant incremental variance in contamination OCD symptoms and blood-injection-injury phobia symptoms after strictly controlling for trait anxiety and depressive severity.

Criterion and Clinical Validity

The DS-R demonstrates pronounced clinical utility by discriminating between diagnostic clinical groups and healthy controls:

• Obsessive-Compulsive Disorder: Patients diagnosed with washing- and contamination-type OCD score significantly higher on the DS-R total scale and the Contamination Disgust subscale than both healthy controls (d = 1.10 to 1.35) and clinical controls diagnosed with other anxiety disorders, such as generalized anxiety disorder or social anxiety disorder.
• Blood-Injection-Injury (BII) Phobia: Individuals with BII phobia exhibit marked elevations specifically on the Animal Reminder Disgust subscale (d > 1.20) compared to individuals with animal phobias or healthy controls, confirming theoretical predictions regarding envelope violations and mortality reminders.
• Eating Disorders: Elevated Core Disgust scores systematically predict severe body dissatisfaction and restrictive eating pathology, reflecting intense disgust directed toward bodily fat and caloric intake.

Reliability

The psychometric reliability of the DS-R has been extensively corroborated across diverse demographic samples, language translations, and clinical contexts.

Internal Consistency

Internal consistency metrics for the DS-R consistently meet or exceed conventional psychometric standards for psychological instruments:

• Total DS-R Score: Across multiple independent validation cohorts (Olatunji et al., 2007; van Overveld et al., 2008), the full 25-item scale exhibits Cronbach’s alpha coefficients ranging between .84 and .89, indicating excellent overall reliability.
• Core Disgust Subscale (12 items): Cronbach’s alpha typically ranges from .74 to .82, reflecting strong internal cohesion across food, excretion, and visceral pathogen items.
• Animal Reminder Disgust Subscale (8 items): Demonstrates good internal consistency, with alpha coefficients regularly falling between .76 and .84.
• Contamination Disgust Subscale (5 items): Despite having only five items, the subscale maintains acceptable internal consistency, with alpha coefficients ranging between .69 and .78.

Test-Retest Reliability

Longitudinal stability investigations demonstrate that disgust sensitivity measured via the DS-R constitutes an enduring psychological trait rather than a transient affective state. Olatunji et al. (2007) administered the instrument across a 10-week interval to non-clinical participants, yielding a test-retest correlation coefficient of r = .71 for the total scale (p < .001). Subscale test-retest coefficients were similarly stable: Core Disgust (r = .69), Animal Reminder Disgust (r = .74), and Contamination Disgust (r = .66). Further testing across shorter intervals (e.g., 2 to 4 weeks) has yielded retest coefficients exceeding r = .82, confirming that the scale is adequately stable for longitudinal tracking and clinical outcome evaluation.

Factor Analysis

The structural refinement of the original Disgust Scale into the DS-R was achieved through rigorous exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) conducted across two large, independent non-clinical student and community cohorts totaling over 1,000 participants (Olatunji et al., 2007).

Exploratory Factor Analysis (EFA)

Initial principal-axis factor analyses with oblique (promax) rotation on the original 32 items revealed that the eight theoretical subscales proposed by Haidt et al. (1994) could not be retained. Several items loaded weakly (loadings < .30), cross-loaded substantially across multiple factors, or demonstrated poor corrected item-total correlations. Through systematic item elimination criteria—retaining only items that loaded ≥ .40 on a primary factor with cross-loadings < .25—the pool was reduced to 25 primary items. The scree plot and parallel analysis decisively supported a three-factor solution accounting for approximately 42% to 47% of the total variance across samples.

Confirmatory Factor Analysis (CFA) and Model Fit

In a secondary cross-validation sample, Olatunji and colleagues conducted CFA comparing several alternative structural models:

• One-factor unidimensional model: Showed poor fit to the empirical data (CFI < .80, RMSEA > .08, TLI < .78).
• Original eight-factor model: Exhibited mathematical instability, multicollinearity among latent variables (inter-factor correlations exceeding .90), and poor overall fit.
• Three-factor correlated model: Demonstrated good to superior fit indices across all standard psychometric criteria (CFI = .92, TLI = .91, RMSEA = .048 [90% CI: .042, .054], SRMR = .046).
• Hierarchical higher-order model: Specifying an overarching general Disgust Sensitivity factor with three second-order latent dimensions (Core, Animal Reminder, Contamination) demonstrated equivalent fit to the correlated three-factor model, supporting the scoring of both a total score and three specific subscale scores.

Subsequent international validation studies across Dutch, Spanish, Italian, Australian, and German cohorts have replicated this three-factor structure, confirming that the tri-dimensional organization represents an invariant conceptual framework for human disgust sensitivity across cultures.

Instrument / Measurement Tool

The Disgust Scale – Revised is a standardized self-report paper-and-pencil or computerized questionnaire. Below are its structural specifications, administration parameters, and scoring conventions:

• Instrument Type: Self-report psychological scale / psychometric inventory.
• Administration Format: Paper-and-pencil questionnaire, online assessment platform, or clinical interview auxiliary.
• Target Population: Adults and adolescents aged 16 years and older.
• Completion Time: Approximately 5 to 10 minutes.
• Item Composition: 25 scored items arranged across two distinct response parts. In typical administration protocols, 2 catch/attention-check items are included (making a total administration of 27 items), but these are completely excluded from final scale scoring.
• Response Scale Structure:
  • Part 1 (Items 1 to 13): Assesses agreement with beliefs and behaviors using a 4-point rating scale:
    
    0 = Strongly disagree (very untrue about me)

1 = Mildly disagree (somewhat untrue about me)

2 = Mildly agree (somewhat true about me)

3 = Strongly agree (very true about me)
  • Part 2 (Items 14 to 25): Assesses affective disgust reactivity to specific scenarios using a 4-point evaluative scale:
    
    0 = Not disgusting at all

1 = Slightly disgusting

2 = Moderately disgusting

3 = Very disgusting
    
    (Note: In some research settings, Part 1 and Part 2 are administered on a 0 to 4 Likert scale, but 0 to 3 represents the standard scoring convention established by Olatunji et al., 2007).
• Subscale Item Breakdown:
  • Core Disgust (12 items): Items 1, 4, 5, 8, 11, 13, 14, 15, 17, 18, 21, 25.
  • Animal Reminder Disgust (8 items): Items 2, 3, 7, 9, 12, 19, 22, 23.
  • Contamination Disgust (5 items): Items 6, 10, 16, 20, 24.
• Reverse Scoring Rules:
  • Items 1, 6, and 10 are reverse scored before calculating subscale and total scores (i.e., for a 0–3 scale: 0 becomes 3, 1 becomes 2, 2 becomes 1, and 3 becomes 0).
• Scoring Computation:
  • Total Score: Sum of all 25 items (ranging from 0 to 75), or alternatively computed as the grand mean of all items (ranging from 0 to 3).
  • Subscale Scores: Calculated either as the sum or mean of the respective items comprising each subscale. Higher scores uniformly reflect greater disgust sensitivity.

Permissions & Fee and Test Year

The Disgust Scale – Revised was formally established and published in its definitive psychometric form in 2007 by Bunmi O. Olatunji and colleagues. The scale is derived from earlier work by Jonathan Haidt, Clark McCauley, and Paul Rozin (1994). The DS-R is placed in the public domain for academic, educational, and non-commercial scientific research purposes. Researchers and clinicians may utilize, translate, and administer the instrument without paying licensing fees or royalties, provided that proper bibliographic attribution is given to the original authors and the primary 2007 validation paper published in Psychological Assessment. Commercial entities seeking to utilize the scale within proprietary software, commercial employee testing, or profit-driven diagnostic platforms must contact the original authors and the American Psychological Association (APA) for formal copyright clearance.

References

• Greenberg, J., Pyszczynski, T., & Solomon, S. (1986). The causes and consequences of a need for self-esteem: A terror management theory. In R. F. Baumeister (Ed.), Public self and private self (pp. 189–212). Springer-Verlag. https://doi.org/10.1007/978-1-4613-9564-5_10
• Haidt, J., McCauley, C., & Rozin, P. (1994). Individual differences in sensitivity to disgust: A scale sampling seven domains of disgust elicitors. Personality and Individual Differences, 16(5), 701–713. https://doi.org/10.1016/0191-8869(94)90212-7
• Olatunji, B. O., Williams, N. L., Tolin, D. F., Abramowitz, J. S., Sawchuk, C. N., Lohr, J. M., & Elwood, L. S. (2007). The Disgust Scale: Item analysis, factor structure, and suggestions for refinement. Psychological Assessment, 19(3), 281–297. https://doi.org/10.1037/1040-3590.19.3.281
• Rozin, P., Haidt, J., & McCauley, C. R. (2000). Disgust. In M. Lewis & J. M. Haviland-Jones (Eds.), Handbook of emotions (2nd ed., pp. 637–653). Guilford Press.
• Schaller, M., & Park, J. H. (2011). The behavioral immune system (and why it matters). Current Directions in Psychological Science, 20(2), 99–103. https://doi.org/10.1177/0963721411402596
• van Overveld, M., de Jong, P. J., Peters, M. L., Cavanagh, K., & Davey, G. C. L. (2008). Disgust sensitivity and disgust propensity: Investigating the relationship with anxiety disorders. Journal of Clinical Psychology, 64(4), 392–401. https://doi.org/10.1002/jclp.20459

13. Items of the Scale (Questionnaire)