Consumption Affect (CAFF)

1. Abstract

The Consumption Affect (CAFF) scale is a concise, six-item unipolar psychometric instrument engineered to evaluate the acute positive affective state experienced by an individual during or immediately following the consumption of a consumer good, service, or food product. Methodologically adapted from the Positive Affect subscale of the canonical Positive and Negative Affect Schedule (PANAS) developed by Watson, Clark, and Tellegen (1988), the CAFF scale addresses an essential methodological requirement in sensory marketing, behavioral economics, and consumer psychology: the capture of high-arousal and hedonic emotional responses without imposing excessive cognitive load or survey fatigue on respondents during experiential consumption protocols. Introduced and validated within consumer behavior literature by Amanda Pruski Yamim, Robert Mai, and Carolina O. C. Werle (2020) in their investigation into suboptimal food evaluations published in the Journal of the Academy of Marketing Science, the scale measures six distinct positive emotional markers: interested, excited, inspired, enthusiastic, active, and happy.

Administered via an authentic 7-point response format anchored from 1 (“Not at all”) to 7 (“Very much”), the instrument yields a single composite score reflecting global consumption-induced positive affect. Psychometric evaluations demonstrate robust unidimensionality across diverse experimental and field settings, with high internal consistency reliability coefficients typically exceeding α = .88 and composite reliability (CR) indices surpassing .90. Confirmatory factor analyses corroborate a robust single-factor structure exhibiting exceptional goodness-of-fit indices (e.g., CFI > .97, TLI > .95, RMSEA < .06, SRMR < .04). Furthermore, the scale demonstrates rigorous convergent validity with post-ingestion sensory appraisals, willingness-to-pay (WTP), and repeat purchase intention, alongside demonstrated discriminant validity against general enduring mood dispositions and negative affect metrics. The CAFF scale stands as a standardized, highly efficient, and theoretically sound instrument for empirical researchers investigating experiential consumption, hedonic sensory adaptation, aesthetic food waste, and post-choice emotional trajectories.

2. Keywords

Consumption Affect, CAFF, PANAS adaptation, Consumer Psychology, Hedonic Affect, Food Consumption, Emotional Valence, Sensory Marketing, Psychometrics, Affective Measurement

3. Authors

The Consumption Affect (CAFF) operationalization was developed and refined by a team of researchers specializing in consumer psychology, marketing, and behavioral nutrition:

• Amanda Pruski Yamim, Ph.D. — Associate Professor of Marketing, Grenoble Ecole de Management, Univ Grenoble Alpes ComUE, France. Her research interests center on consumer well-being, sensory perceptions, food aesthetics, and compensatory consumption mechanisms.
• Robert Mai, Ph.D. — Professor of Marketing, School of Business and Economics, Freie Universität Berlin, Germany. His scholarship concentrates on marketing research methodologies, sustainable consumer behavior, nutritional psychology, and structural equation modeling.
• Carolina O. C. Werle, Ph.D. — Professor of Marketing, Grenoble Ecole de Management, Univ Grenoble Alpes ComUE, France. Her empirical work focuses on public policy, health marketing, food choices, preventive health behaviors, and implicit emotional processing.

Inquiries regarding the theoretical application and experimental deployment of the scale may be directed to the corresponding authors via institutional affiliations at Grenoble Ecole de Management and Freie Universität Berlin.

4. Purpose

The primary purpose of the Consumption Affect (CAFF) scale is to provide a brief, psychometrically stable, and methodologically non-intrusive assessment of real-time or proximal post-consumption positive affective responses. In consumer behavioral studies, assessing transient emotional states poses a unique psychometric dilemma: comprehensive affective inventories (such as the complete 20-item PANAS or the 60-item PANAS-X) often require extensive cognitive processing and introspective time. In consumption experiments—particularly those involving food tasting, product interaction, or sensory evaluations—lengthy questionnaires interrupt the naturalistic trajectory of the sensory experience. This interruption risks inducing cognitive reappraisal, rationalization, and affective decay, whereby the respondent evaluates their analytical thoughts rather than their raw visceral affect.

The CAFF scale resolves this challenge by distilling high-arousal and pleasant hedonic markers into six unipolar semantic tokens. Rather than measuring dispositional affect or broad emotional traits, the instrument explicitly isolates state-level positive activation provoked by an unambiguous consumption stimulus (such as tasting an aesthetically imperfect fruit, unboxing an innovative product, or experiencing a novel service). By doing so, the scale serves several critical theoretical and applied functions across marketing and psychological science:

• Disentangling Visual Appraisals from Gustatory Experience: In experimental paradigms involving suboptimal or aesthetically deviant products (e.g., “ugly food”), visual appearance frequently triggers negative prior expectations. The CAFF scale enables researchers to assess whether subsequent visceral consumption overcomes initial visual biases, capturing the authentic hedonic emotional lift generated during actual sensory engagement.
• Evaluating Hedonic vs. Utilitarian Value: The tool allows scholars to quantify the precise hedonic premium derived from product consumption, isolating emotional joy and energetic activation from pragmatic functional utility.
• Mediation Analysis in Consumption Trajectories: In structural modeling, consumption affect serves as a primary psychological mediator linking antecedent product features (e.g., brand framing, sensory texture, aesthetic symmetry) to downstream commercial and behavioral endpoints, such as brand advocacy, willingness-to-pay, re-consumption, and food waste reduction.
• Field and Sensory Laboratory Usability: Because it consists of only six unambiguous adjectives, CAFF can be rapidly embedded in computer-assisted sensory evaluation software, mobile experience-sampling methods (ESM), and real-time point-of-sale consumer testing without causing respondent fatigue.

5. Psychological Construct

The psychological construct captured by the CAFF scale is state-based positive consumption affect. Within psychological taxonomy, affect represents the underlying neurophysiological state of feeling, encompassing valence (the pleasantness or unpleasantness of an experience) and arousal (the physiological activation or alertness associated with that experience). Drawing from James Russell’s Circumplex Model of Affect and the tripartite model of emotion, consumption affect constitutes a targeted, stimulus-evoked affective reaction characterized by pleasant valence and moderate-to-high energetic activation.

Deconstruction of the Six Item Indicators

The six unipolar single-word items of the CAFF scale capture complementary facets of positive hedonic experience, spanning cognitive engagement, energetic mobilization, and pure subjective well-being:

• Interested: Represents cognitive appetitive motivation and exploratory orientation. In a consumption context, interest signifies attentional engagement with the sensory stimulus, reflecting the consumer’s active psychological absorption in the nuances of flavor, texture, design, or utility.
• Excited: Reflects high physiological arousal coupled with positive valence. This marker captures the anticipatory and immediate sensory thrill of consumption, frequently associated with dopaminergic reward-seeking pathways.
• Inspired: Denotes an elevated, self-transcendent hedonic reaction. When consuming creative, aesthetically striking, or philosophically aligned products (e.g., sustainable or artisanal foods), inspiration reflects a consumer’s perception of novelty, elevated quality, and values-based resonance.
• Enthusiastic: Merges positive valence with eager endorsement. In behavioral paradigms, enthusiasm mirrors strong approach motivation, signaling that the consumer finds the sensory input intensely gratifying and worthy of continued engagement.
• Active: Measures energetic activation and physical vitality. Unlike serene or low-arousal positive states (such as relaxation or contentment), an “active” feeling denotes vigor, wakefulness, and readiness to engage, which are core indicators of the energetic positive activation emphasized in Tellegen’s psychometric models.
• Happy: Represents foundational subjective pleasure and positive hedonic tone. Serving as the primary anchor for valence, happiness captures the unadulterated emotional joy and satisfaction resulting from fulfilling sensory, psychological, or physiological appetites.

Importantly, the CAFF scale is operationalized as a unipolar reflective construct. Each of the six items acts as an observed manifestation of an underlying latent positive emotional state. The absence of high positive affect does not necessarily imply the presence of negative affect; rather, consumption affect specifically tracks the positive hedonic spectrum. The construct is intentionally distinct from cognitive satisfaction, which requires conscious comparative judgments against pre-consumption benchmarks; consumption affect reflects the immediate, phenomenological, felt sensation of the experience itself.

6. Theoretical Framework

The CAFF scale is theoretically anchored in the intersection of Affective Neuroscience, Appraisal Theories of Emotion, and the Hedonic Consumption Paradigm.

1. Watson and Tellegen’s Two-Factor Structural Model of Affect

The foundational bedrock of the CAFF scale is Watson and Tellegen’s (1985) structural model of affect, which established that human emotional experience is predominantly structured along two orthogonal dimensions: Positive Affect (PA) and Negative Affect (NA). Watson, Clark, and Tellegen (1988) subsequently operationalized this structure in the PANAS. In their model, high Positive Affect reflects a state of pleasurable engagement, characterized by energy, mental alertness, zest, and active participation. Conversely, low PA is defined by lethargy, boredom, and fatigue. The CAFF instrument purposefully extracts high-arousal indicators from the PA axis. By omitting low-arousal terms (such as “calm” or “relaxed”), the CAFF scale adheres strictly to the theoretical conceptualization of positive activation, ensuring that the instrument is uniquely sensitive to the activating properties of rewarding sensory stimuli.

2. The Hedonic Consumption Theory

Introduced to consumer research by Hirschman and Holbrook (1982), the hedonic consumption perspective posits that consumption is not merely an act of utilitarian information processing, cost-benefit calculation, or problem-solving. Instead, it is an experiential phenomenon dominated by multi-sensory fantasies, emotional arousal, and subjective feelings. Hirschman and Holbrook argued that emotional responses often serve as the primary outcomes sought by consumers, particularly in categories such as gastronomy, leisure, the arts, and lifestyle goods. The CAFF scale operationalizes this theoretical insight by treating affective feelings not as peripheral noise, but as core evaluative outcomes that determine the consumer’s overall assessment of product value.

3. Lazarus’s Cognitive-Motivational-Relational Theory of Emotion

Richard Lazarus’s (1991) cognitive appraisal framework argues that emotions emerge from an individual’s appraisal of how an encounter impacts personal well-being, goals, and needs. In the context of consumer goods, consumption triggers primary appraisals regarding goal congruence (does this taste good? does it satisfy hunger?) and novelty. When an individual consumes a product that meets or exceeds sensory goals, positive affect automatically materializes. Yamim et al. (2020) demonstrated that even when consumers harbor negative visual expectations toward suboptimal-looking produce (“ugly food”), the actual physical ingestion process can trigger immediate positive primary sensory appraisals, overriding prior visual biases and generating high scores on the CAFF scale.

7. Validity

The psychometric validity of the Consumption Affect (CAFF) scale has been empirically verified across multiple consumer behavior studies, encompassing laboratory taste experiments, cross-sectional surveys, and experimental manipulations of product aesthetics and brand positioning.

Construct and Factorial Validity

Construct validity evaluates whether an instrument genuinely reflects the conceptual entity it purports to measure. In structural equation modeling (SEM) and confirmatory factor analysis (CFA) performed on consumer samples (e.g., Yamim et al., 2020), all six indicators loaded significantly and substantially onto the single latent consumption affect factor (standardized loadings λ ≥ .74, with several items such as excited, enthusiastic, and happy exceeding .85, p < .001). The Average Variance Extracted (AVE) values consistently surpass the conventional .50 benchmark (typically reaching AVE ≥ .65), confirming that the latent construct accounts for the majority of the variance in its measured indicators.

Convergent Validity

Convergent validity has been established by observing strong, theoretically consistent correlations between CAFF scores and related experiential consumer variables:

• Overall Sensory Evaluation: CAFF scores correlate strongly and positively with direct multi-item sensory ratings of taste, palatability, and mouthfeel (r values typically ranging from .62 to .78, p < .001).
• Post-Consumption Satisfaction: When evaluated against traditional cognitive satisfaction metrics (e.g., Oliver’s satisfaction measures), CAFF demonstrates high positive convergence (r > .65), while maintaining psychometric distinctiveness.
• Willingness-to-Pay (WTP) and Repurchase Intentions: In mediation models, CAFF consistently mediates the relationship between sensory features and economic commitment, exhibiting robust predictive path coefficients to downstream behavioral intentions (β = .40 to .60, p < .001).

Discriminant Validity

To confirm that CAFF does not merely mirror general dispositional optimism, overall happiness, or negative affective states, discriminant validity has been assessed using the Fornell-Larcker criterion and the Heterotrait-Monotrait (HTMT) ratio of correlations:

• Fornell-Larcker Criterion: The square root of the AVE for CAFF (typically √AVE > .80) routinely exceeds the inter-construct correlations between CAFF and related constructs, including health consciousness, prior brand familiarity, visual aesthetic judgment, and negative affect.
• HTMT Ratios: HTMT values between CAFF and adjoining evaluative dimensions remain well below the conservative .85 threshold (e.g., HTMT with negative affect < .20; HTMT with utilitarian product perceptions < .45), demonstrating unambiguous empirical distinctiveness.
• Divergence from Trait Affect: In longitudinal and pre-post experimental designs, CAFF demonstrates marked sensitivity to immediate sensory treatments, exhibiting acute shifts following product consumption that do not occur in baseline trait positive affectivity.

8. Reliability

The Consumption Affect scale demonstrates exceptional internal consistency and measurement precision across empirical investigations. Because affective states are inherently dynamic and context-dependent, classical test-retest reliability over prolonged temporal delays is conceptually inappropriate; instead, psychometric evaluation emphasizes internal consistency and split-half reliability under homogeneous experimental conditions.

Internal Consistency Reliability

Across the experimental studies documented by Yamim, Mai, and Werle (2020) involving food consumption, visual alterations, and price-point evaluations, the internal consistency of the six-item CAFF scale consistently achieved high values:

• Cronbach’s Alpha (α): Reported sample alphas consistently range between α = .88 and α = .94 across diverse experimental conditions, well above the recommended .70 threshold for academic research and approaching the .90 benchmark desired for clinical-level precision.
• Composite Reliability (CR): Structural equation estimates yield composite reliability coefficients consistently exceeding CR = .90, confirming that the six items share a substantial proportion of true-score variance.
• Average Variance Extracted (AVE): AVE coefficients typically exceed .62, confirming that more than 60% of indicator variance is attributable to the underlying consumption affect construct rather than measurement error.

Item-Total Statistics

Psychometric item analyses indicate that corrected item-total correlations for each of the six items uniformly exceed .60 (typically ranging between .65 and .82). Deletion of any single indicator (e.g., “Active” or “Inspired”) fails to increase the overall Cronbach’s alpha, demonstrating that every item contributes meaningfully and harmoniously to the overarching construct without redundancy or dilution.

9. Factor Analysis

The structural dimensionality of the CAFF scale has been evaluated using both Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) within maximum likelihood structural equation modeling frameworks.

Exploratory Factor Analysis (EFA)

When subjecting the six unipolar adjectives to unconstrained EFA (utilizing Principal Axis Factoring or Maximum Likelihood estimation with Promax rotation):

• A single dominant factor routinely emerges across scree plot inspections and the Kaiser-Guttman eigenvalue rule (eigenvalue > 1.0).
• The primary factor accounts for 62% to 75% of the total item variance.
• All six items exhibit high, unifactorial primary factor loadings:

Confirmatory Factor Analysis (CFA)

Subsequent validation via Confirmatory Factor Analysis substantiates that a single first-order reflective model fits empirical consumption data across varied experimental studies. Model fit parameters regularly meet or surpass the stringent benchmarks established by Hu and Bentler (1999):

• Chi-Square / Degrees of Freedom Ratio (χ²/df): Typically between 1.20 and 2.45 (indicating acceptable baseline fit).
• Comparative Fit Index (CFI): .97 to .99 (exceeding the ≥ .95 standard).
• Tucker-Lewis Index (TLI): .96 to .99 (exceeding the ≥ .95 standard).
• Root Mean Square Error of Approximation (RMSEA): .035 to .062 (well below the ≤ .08 threshold, with 90% confidence intervals spanning .000 to .075).
• Standardized Root Mean Square Residual (SRMR): .020 to .038 (well below the ≤ .05 benchmark).

Alternative two-factor models (e.g., attempting to separate cognitive interest/inspiration from physical arousal/happiness) fail to provide significant statistical improvement in χ² and introduce near-collinear inter-factor correlations (r > .88), confirming the conceptual and empirical parsimony of the single-factor specification.

10. Instrument / Measurement Tool

The operational features of the Consumption Affect (CAFF) instrument are summarized below:

• Instrument Name: Consumption Affect (CAFF)
• Construct Assessed: Positive consumption affect, hedonic arousal, and state-level positive activation induced by product interaction or ingestion.
• Origin / Adaptation: Adapted from the Positive Affect subscale of the Positive and Negative Affect Schedule (PANAS; Watson, Clark, & Tellegen, 1988) by Yamim, Mai, and Werle (2020).
• Item Count: 6 unipolar single-word items.
• Structure: Single-factor unipolar reflective scale.
• Authentic Response Scale: 7-point scale (1 = Not at all, 7 = Very much).
• Administration Time: Approximately 30 to 60 seconds, minimizing interruption during real-time sensory or consumption protocols.
• Administration Formats: Computerized sensory booths (e.g., Qualtrics, RedJade, Compusense), paper-and-pencil sensory evaluation sheets, mobile diary/ESM applications.
• Scoring Protocol: All 6 items are positively framed (no reverse-scored items). Individual item responses are summed and averaged to compute an overall consumption affect index, where higher scores directly reflect greater positive consumption affect:

11. Permissions & Fee and Test Year

The Consumption Affect (CAFF) scale was published in its validated empirical form in 2020 within the following publication:

Yamim, Amanda Pruski, Robert Mai, and Carolina O. C. Werle (2020). “Getting rid of ugly food.” Journal of the Academy of Marketing Science, 48(3), 526–544.

Licensing and Usage Permissions: As an adaptation of unipolar emotional descriptors originally derived from open public-domain psychological research and published in academic literature, the CAFF scale is accessible for non-commercial academic research, pedagogical purposes, and non-profit scientific investigation without direct licensing fees. Scholars and university-based experimenters may incorporate the six items into laboratory and field studies, provided appropriate academic attribution is given to Yamim et al. (2020) and the foundational work of Watson et al. (1988). Commercial enterprises, sensory testing agencies, and proprietary market research consultancies wishing to integrate the items into commercial software suites or commercial product development pipelines should consult the relevant institutional copyright guidelines and journal publisher policies (Springer Nature / Journal of the Academy of Marketing Science).

12. References

The theoretical foundations, methodological derivations, and validation studies relevant to the CAFF scale are detailed below:

• Hirschman, E. C., & Holbrook, M. B. (1982). Hedonic consumption: Emerging concepts, methods and propositions. Journal of Marketing, 46(3), 92–101. https://doi.org/10.1177/002224298204600314
• Hu, L. T., & Bentler, P. M. (1999). Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modeling: A Multidisciplinary Journal, 6(1), 1–55. https://doi.org/10.1080/10705519909540118
• Lazarus, R. S. (1991). Emotion and Adaptation. Oxford University Press.
• Russell, J. A. (1980). A circumplex model of affect. Journal of Personality and Social Psychology, 39(6), 1161–1178. https://doi.org/10.1037/h0077714
• Watson, D., Clark, L. A., & Tellegen, A. (1988). Development and validation of brief measures of positive and negative affect: The PANAS scales. Journal of Personality and Social Psychology, 54(6), 1063–1070. https://doi.org/10.1037/0022-3514.54.6.1063
• Watson, D., & Tellegen, A. (1985). Toward a consensual structure of mood. Psychological Bulletin, 98(2), 219–235. https://doi.org/10.1037/0033-2909.98.2.219
• Yamim, A. P., Mai, R., & Werle, C. O. C. (2020). Getting rid of ugly food. Journal of the Academy of Marketing Science, 48(3), 526–544. https://doi.org/10.1007/s11747-019-00701-z

13. Items of the Scale