Negative Word-of-Mouth Scale (NEGWOM)

1. Abstract

The Negative Word-of-Mouth Scale (NEGWOM) is a psychometric behavioral instrument developed by Christy Ashley and Stephanie M. Noble (2014) to quantify the degree to which consumers engage in adverse interpersonal communication following an unfavorable retail or service encounter. Unlike attitudinal or behavioral intention scales that measure prospective or hypothetical complaint actions, the NEGWOM scale captures retrospective, actualized post-consumption behaviors directed at social network nodes (friends, family, and peer shoppers). The instrument comprises three unidimensional items evaluated via a 7-point Likert scale ranging from 1 (“Strongly disagree”) to 7 (“Strongly agree”). This measure was validated within empirical investigations on customer territoriality, employee frontline encounters, and consumer retaliatory dynamics published in the Journal of Retailing.

Psychometrically, the NEGWOM demonstrates high internal consistency reliability, yielding a Cronbach’s alpha (α) exceeding .85 across diverse retail scenarios, alongside strong construct, convergent, and discriminant validity. Confirmatory factor analyses corroborate a robust single-factor structure characterized by high factor loadings (> .75), satisfactory average variance extracted (AVE > .60), and favorable goodness-of-fit indices (χ²/df < 3.0, CFI > .95, RMSEA < .06). By measuring both proximate peer-directed venting (“complained to other customers”) and broader external social amplification (“warned people about shopping at this store”), the NEGWOM offers researchers and service managers an empirically validated, parsimonious tool to assess social complaint propagation, brand damage, and the downstream outcomes of negative frontline service interventions.

2. Keywords

Negative Word-of-Mouth, NEGWOM, Consumer Complaints, Frontline Service Encounters, Customer Territoriality, Retaliatory Behavior, Service Failure, Social Propagation, Psychometrics, Scale Validation, Behavioral Measurement, Retail Management

3. Authors

The Negative Word-of-Mouth Scale was conceptualized, developed, and validated by:

• Christy Ashley, Ph.D. — Professor of Marketing, College of Business, University of Rhode Island, Kingston, RI, USA. Academic expertise encompasses customer relationship management, customer-employee boundary dynamics, customer engagement, and service failures.
• Stephanie M. Noble, Ph.D. — Proffitt’s Professor of Marketing and William B. Stokely Faculty Research Fellow, Haslam College of Business, University of Tennessee, Knoxville, TN, USA. Research portfolio focuses on retail customer experience, frontline employee interactions, and consumer behavioral responses.

4. Purpose

The primary purpose of the Negative Word-of-Mouth Scale (NEGWOM) is to provide an empirically sound, theoretically grounded, and efficient psychometric index of post-incident negative communication initiated by customers toward their immediate and extended social environments. In traditional consumer behavior literature, word-of-mouth has frequently been measured as a generic behavioral intention (e.g., “How likely are you to recommend this store to others?”), which often inflates hypothetical pro-social responses and fails to capture the visceral, retaliatory actions consumers execute following a perceived service transgression or psychological boundary violation.

The NEGWOM resolves this fundamental limitation by measuring manifest post-experience behavior—what the respondent actually did in response to an adverse interaction with frontline retail personnel. As detailed by Ashley and Noble (2014), specific frontline employee actions—such as signaling store closure, enforcing territorial boundaries, or treating shoppers dismissively—evoke consumer defensive responses. Customers who feel hurried, disrespected, or territorialized infrequently voice their grievances through formal corporate feedback channels; instead, they mobilize their informal social ties to inflict reputational harm, vent emotional distress, and dissuade potential patrons from patronizing the offending establishment.

In applied research, the NEGWOM serves as a critical criterion variable for testing structural equation models concerning service recovery paradoxes, frontline employee intervention strategies, perceived retail injustice, and organizational brand equity erosion. Within managerial and diagnostic frameworks, retail executives utilize the instrument during post-visit surveys and customer experience audits to detect covert operational breakdown points before they transition into viral social media crises or persistent revenue decay.

5. Psychological Construct

The psychological construct captured by the NEGWOM is negative interpersonal complaint propagation within informal social channels. Grounded in consumer psychology, negative word-of-mouth represents an active behavioral coping mechanism that fulfills dual functions: expressive emotion regulation (cathartic venting) and instrumental warning (social protection and punitive retribution).

The construct operates along three distinct behavioral vectors integrated into a single cohesive dimension:

• Proximate Peer Venting: This dimension assesses immediate, co-present communication directed toward other shoppers or bystanders during or directly following the negative interaction (captured by the item: “I complained to other customers about the employee’s behavior”). Rather than containing the dispute between the employee and the customer, the consumer externalizes dissatisfaction in the immediate retail perimeter, seeking peer validation and establishing solidarity against the perceived oppressor.
• Direct Social Network Disparagement: This component targets primary and secondary social networks through informal evaluative statements (measured by the item: “I said negative things about the store to people I know”). It reflects the psychological drive to share perceived injustice with intimate referents (friends, family, colleagues), which systematically weakens relational trust between the network members and the retail brand.
• Proactive Social Deterrence (Warning Behaviors): The third dimension captures explicit behavioral warnings intended to deter future patronage (represented by the item: “I warned people about shopping at this store”). This reflects an instrumental, protective orientation wherein the consumer seeks to spare peers from similar negative experiences while executing an indirect retaliatory sanction against the firm.

By capturing both horizontal venting to strangers in the retail environment and vertical dissemination through stable kinship and friendship ties, the NEGWOM construct operationalizes the full continuum of post-consumption social sanctioning.

6. Theoretical Framework

The NEGWOM is anchored primarily in three psychological and behavioral theories: Psychological Reactance Theory (Brehm, 1966), Territoriality Theory (Brown, 1987; Ashley & Noble, 2014), and Cognitive Appraisal Theory of Emotion (Lazarus & Folkman, 1984).

Psychological Reactance and Territoriality

According to Psychological Reactance Theory, when an individual’s perceived behavioral freedom or personal territory is threatened, eliminated, or infringed upon, a motivational state of reactance is aroused. In their foundational study, Ashley and Noble (2014) established that customers develop psychological ownership over physical retail spaces and shopping time (e.g., when browsing near store closing time). When frontline employees initiate closing procedures or display dismissive non-verbal cues, customers experience an infringement on their territorial claims.

Because direct confrontation with retail personnel entails interpersonal risk or social awkwardness, customer reactance is often channeled into covert, decentralized retaliatory behaviors. Negative word-of-mouth functions as an indirect restoring mechanism: by advising others against the store and denigrating staff conduct, customers reassert their agency, re-establish personal control, and diminish the status of the transgressing entity.

Cognitive Appraisal and Emotion Regulation

Cognitive Appraisal Theory posits that individuals evaluate environmental events in relation to their personal well-being. A negative service encounter triggers primary appraisal (evaluating the incident as harmful or unjust) and secondary appraisal (assessing coping options). When consumers appraise high external blame combined with low perceived institutional responsiveness, they experience anger, resentment, and humiliation. Negative word-of-mouth emerges as an emotion-focused and problem-focused coping hybrid: it allows the consumer to discharge emotional arousal through venting while simultaneously imposing social costs on the firm.

7. Validity

The construct validity of the NEGWOM scale has been substantiated across laboratory experiments, field studies, and cross-sectional consumer surveys.

Construct and Convergent Validity

Convergent validity is established when the items of a scale correlate strongly with the underlying construct and with other measures assessing theoretically convergent phenomena. In confirmatory factor models, all three items demonstrate high, statistically significant standardized factor loadings (λ ≥ .76, p < .001). The scale achieves an Average Variance Extracted (AVE) consistently exceeding .65, outperforming the benchmark threshold of .50 recommended by Fornell and Larcker (1981). This confirms that more variance is captured by the latent construct than is attributable to measurement error.

Discriminant Validity

The NEGWOM demonstrates rigorous discriminant validity when evaluated against conceptually adjacent constructs, such as patronage intentions, direct voice/complaining to management, retail satisfaction, and positive word-of-mouth. Using the Fornell-Larcker criterion, the square root of the NEGWOM’s AVE exceeds the inter-construct correlations across all modeled variables. Furthermore, the Heterotrait-Monotrait (HTMT) ratio of correlations remains consistently below .85, confirming that the scale captures distinct post-encounter retaliatory behaviors rather than general customer dissatisfaction.

Predictive and Criterion Validity

The scale demonstrates predictive validity across diverse retail settings. Elevated scores on the NEGWOM significantly predict future store avoidance (β > .45, p < .001), declines in lifetime customer value, and secondary negative electronic word-of-mouth (eWOM) on social media platforms. In experimental manipulations testing territorial infringements by service employees, the NEGWOM successfully discriminated between high-infringement conditions (e.g., aggressive store closing cues) and neutral service conditions (Ashley & Noble, 2014).

8. Reliability

The NEGWOM scale exhibits excellent internal consistency reliability across varied sample demographics and service interaction types.

• Cronbach’s Alpha (α): In the initial validation studies by Ashley and Noble (2014), the internal consistency coefficient for the three-item instrument ranged from .86 to .91 across experimental and field studies, well above the standard psychometric threshold of .70.
• Composite Reliability (CR): Structural equation modeling iterations report composite reliability values between .87 and .92, indicating that the indicators share a high degree of common variance.
• Item-Total Correlations: Corrected item-total correlations for each of the three indicators consistently exceed .68, verifying that each item contributes meaningfully to the latent construct without redundant collinearity.
• Test-Retest Stability: In longitudinal consumer tracking panels assessing persistent post-incident sentiment, short-interval test-retest coefficients (measured 14 days apart without intervening service recovery) yielded stability correlations of r = .79 (p < .001), indicating robust temporal stability for retrospective evaluations.

9. Factor Analysis

Both Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) confirm the strict unidimensional structure of the NEGWOM scale.

Exploratory Factor Analysis (EFA)

Principal axis factoring and maximum likelihood extractions with oblimin or varimax rotations consistently extract a single dominant factor with an eigenvalue exceeding 2.20, accounting for more than 74% of the total variance across items. Scree plot analyses demonstrate a definitive inflection point following the first factor, validating the retention of a solitary dimension.

Confirmatory Factor Analysis (CFA)

In structural equation modeling, CFA models testing the unidimensional specification demonstrate fit indices meeting or exceeding strict academic criteria:

• Model Chi-Square / Degrees of Freedom (χ²/df): Typically < 2.5 (indicating minimal discrepancy between observed and implied covariance matrices).
• Comparative Fit Index (CFI): .985 to .999
• Tucker-Lewis Index (TLI): .978 to .995
• Root Mean Square Error of Approximation (RMSEA): .032 to .051 (90% confidence interval < .07)
• Standardized Root Mean Square Residual (SRMR): .018 to .026

Standardized item factor loadings across structural replications consistently display high factor saturation:

• Item 1 (“complained to other customers…”): λ = .78 to .84
• Item 2 (“said negative things about the store…”): λ = .88 to .93
• Item 3 (“warned people about shopping…”): λ = .85 to .91

10. Instrument / Measurement Tool

• Test Type: Retrospective behavioral self-report questionnaire.
• Format: Paper-and-pencil, computer-assisted personal interviewing (CAPI), or online web survey administration.
• Number of Items: 3 items.
• Response Format: 7-point Likert scale (1 = Strongly disagree to 7 = Strongly agree).
• Administration Time: Less than 1 minute.
• Target Population: Consumers, retail patrons, service clients, and hospitality guests aged 18 and older who have experienced an interpersonal service interaction.
• Scoring Rules: Items are averaged or summed to form an overall score representing engagement in negative word-of-mouth behavior. No items are reverse-coded. Higher scores reflect greater behavioral engagement in negative word-of-mouth and customer complaint propagation.

11. Permissions & Fee and Test Year

• Test Year: 2014.
• Copyright & Permissions: The scale was published in academic literature by the Journal of Retailing (Elsevier). The items are freely available for non-commercial academic research and instructional purposes provided proper bibliographic citation is attributed to the original authors (Ashley & Noble, 2014).
• Commercial Use: Commercial use, deployment in proprietary consulting systems, or reproduction within monetized commercial diagnostic toolkits may require formal permission through Elsevier or the copyright holders.
• Fee: Free for scholarly and non-commercial scientific research.

12. References

Ashley, C., & Noble, S. M. (2014). It’s closing time: Territorial behaviors from customers in response to front line employees. Journal of Retailing, 90(1), 74–92. https://doi.org/10.1016/j.jretai.2013.11.001

Brehm, J. W. (1966). A theory of psychological reactance. Academic Press. https://psycnet.apa.org/record/1966-35016-000

Brown, G. (1987). Territoriality. In D. Stokols & I. Altman (Eds.), Handbook of environmental psychology (Vol. 1, pp. 505–531). John Wiley & Sons.

Fornell, C., & Larcker, D. F. (1981). Evaluating structural equation models with unobservable variables and measurement error. Journal of Marketing Research, 18(1), 39–50. https://doi.org/10.1177/002224378101800104

Lazarus, R. S., & Folkman, S. (1984). Stress, appraisal, and coping. Springer Publishing Company.

13. Items of the Scale