Self-Concepts, Person Concepts, and Product Concepts Scale (SCPPC)

Abstract

The Self-Concepts, Person Concepts, and Product Concepts Scale (SCPPC), developed by psychometrician and consumer behavior researcher Naresh K. Malhotra in 1981, is a specialized 15-item semantic differential measurement instrument designed to assess and directly compare self-image, interpersonal person-concepts, and product or brand imagery within a unified, standardized psychometric space. Grounded in the semantic space and meaning measurement traditions pioneered by Charles E. Osgood, George J. Suci, and Percy H. Tannenbaum (1957), the SCPPC directly addresses a historical methodological limitation in consumer psychology and social cognition: the confounding artifact of using distinct, non-commensurate scales to evaluate consumers and the commercial objects or social actors they evaluate. The SCPPC consists of 15 carefully curated bipolar adjective pairs evaluated on 7-point semantic differential rating formats. Across empirical scale development samples involving self-evaluations, person ratings (e.g., celebrity endorsers, reference actors), and product ratings (e.g., automobile brands), the scale isolated stable dimensions of meaning after pruning non-generalizable traits such as tautness and aggressiveness. Reliability assessments demonstrate subscale Cronbach’s alpha values ranging between .50 and .70 across situational contexts, accompanied by high test-retest stability coefficients ranging from .70 to .88. The scale demonstrates robust convergent, discriminant, and predictive validity in measuring self-congruity, brand positioning, celebrity-endorser congruence, and consumer preference modeling. Today, the SCPPC remains a foundational psychometric tool in consumer research, advertising psychology, and social perception studies.

Keywords

Self-Concepts Person Concepts and Product Concepts Scale, SCPPC, Semantic Differential Scale, Self-Congruity Theory, Brand Personality, Naresh K Malhotra, Person Perception, Consumer Psychology, Measurement of Meaning, Psychometrics, Self-Image Congruence, Brand Positioning

Authors

The scale was developed, psychometrically validated, and published by Naresh K. Malhotra, Ph.D.

• Institutional Affiliation: Regents' Professor Emeritus of Marketing, Scheller College of Business, Georgia Institute of Technology, Atlanta, Georgia, United States.
• Academic Footprint: Dr. Malhotra is an internationally recognized scholar in marketing research, psychometric measurement, consumer behavior, and statistical modeling. He served as the Editor of the Journal of Academy of Marketing Science and has authored leading textbooks including Marketing Research: An Applied Orientation.
• Author Contact: Scheller College of Business, Georgia Institute of Technology, 800 West Peachtree NW, Atlanta, GA 30308, USA.

Purpose

The primary objective of the Self-Concepts, Person Concepts, and Product Concepts Scale (SCPPC) is to provide a parsimonious, psychometrically rigorous, and universally applicable semantic differential instrument capable of measuring three structurally divergent entities—the individual self, other human individuals (person concepts), and inanimate commercial objects or brands (product concepts)—along identical psychometric dimensions. Historically, psychological research and marketing inquiries suffered from a severe structural disconnect when investigating self-image congruence: self-concept was typically captured using clinical personality inventories (such as Gough’s Adjective Check List or Cattell’s 16PF), whereas brand and product images were assessed using idiosyncratic, market-specific functional descriptors. Calculating statistical distance or congruence between such disparate measurement instruments introduced significant methodological artifacts, scale translation errors, and questionable construct validity.

To resolve this systemic challenge, Dr. Malhotra constructed the SCPPC to fulfill several critical diagnostic, empirical, and strategic functions:

• Self-Congruity Assessment: The scale allows researchers to capture an individual’s actual self-concept, ideal self-concept, and social self-concept, and subsequently compute mathematical congruence scores (such as generalized Euclidean distance or absolute difference indices) against target brands, organizations, or consumption goods.
• Endorser-Brand-Consumer Triangulation: In advertising and communication research, the SCPPC allows for the simultaneous measurement of the celebrity endorser’s perceived image, the advertised product’s intended brand identity, and the consumer’s self-concept, enabling empirical verification of testimonial alignment and source credibility models.
• Strategic Brand Positioning: In corporate and product management, the instrument assists marketing researchers in mapping multi-brand perceptual landscapes against the self-concepts of targeted market segments, revealing distinct unoccupied psychological territory and brand personality voids.
• Social Psychological Person Perception: Beyond commercial settings, the scale offers social psychologists a standardized semantic inventory to evaluate person perception, in-group versus out-group stereotyping, and relational projection dynamics without relying on cumbersome, lengthy psychiatric inventories.

By constraining the measurement space to 15 robust, versatile bipolar items, the SCPPC minimizes respondent fatigue while maintaining the discriminative fidelity required for sophisticated multivariate statistical procedures, including structural equation modeling, multidimensional scaling, and cluster analysis.

Psychological Construct

The fundamental psychological construct underlying the SCPPC is the congruity of symbolic meaning across cognitive targets. Rather than viewing self-concept, social perception, and consumer product evaluation as mutually isolated domains, the SCPPC conceptualizes them as manifestations of a common symbolic cognitive structure. When an individual perceives themselves, another person, or a commercial object, the brain deploys semantic categories and affective schemas to make sense of the entity’s qualitative attributes.

The Tripartite Object Domain

The SCPPC measures three distinct cognitive targets along an invariant set of dimensions:

• Self-Concepts: The organized, consistent set of perceptions and beliefs that an individual holds about themselves. This includes the actual self (how the person currently perceives their own character and style), the ideal self (how the person aspires to be), and the social self (how the person believes they are perceived by significant others).
• Person Concepts: The cognitive schema, impression, or social archetype assigned to another individual. In empirical studies, this target ranges from real-world associates and generalized archetypes (e.g., “the typical sports car driver”) to celebrity endorsers, political figures, and brand spokespersons.
• Product and Brand Concepts: The constellation of symbolic, anthropomorphic, and functional characteristics attributed to an inanimate commercial entity. Products cease to be mere utilitarian physical objects; they function as symbolic extensions of identity, possessing perceived “personalities,” social statuses, and emotional valences.

Underlying Facets and Semantic Dimensionality

The 15 items of the SCPPC span several vital semantic facets of identity and object characterization, derived from deep factor-analytic investigations across diverse stimuli:

• Refinement and Emotional Temperament: Evaluated through items such as Rugged vs. Delicate and Excitable vs. Calm. These items capture physical and emotional sturdiness versus sensitivity, providing insight into whether an entity is viewed as gentle, composed, rough-hewn, or emotionally reactive.
• Comfort and Well-Being: Measured by pairs like Uncomfortable vs. Comfortable and Pleasant vs. Unpleasant. This axis captures fundamental hedonic valence and interpersonal or somatic ease, identifying whether interacting with the self, person, or product elicits tranquility or friction.
• Interpersonal Power and Social Dominance: Captured by Dominating vs. Submissive. This facet assesses interpersonal assertiveness, power dynamics, control, and authority.
• Economic and Behavioral Prudence: Operationalized via Thrifty vs. Indulgent. This dimension captures behavioral restraint, fiscal discipline, luxury orientation, and hedonistic indulgence versus utilitarian conservation.
• Modernity and Temporal Orientation: Evaluated via Contemporary vs. Noncontemporary and Youthful vs. Mature. These pairs evaluate cultural pacing, chronological orientation, adherence to modern trends versus traditionalism, and dynamic vitality versus seasoned gravity.
• Cognitive and Structural Organization: Represented by Organized vs. Unorganized, Rational vs. Emotional, and Complex vs. Simple. This facet addresses cognitive operational styles, predictability, logical discipline versus affective spontaneity, and structural depth.
• Social Propriety, Ostentation, and Openness: Measured by Formal vs. Informal, Orthodox vs. Liberal, Colorless vs. Colorful, and Modest vs. Vain. These items identify adherence to established social conventions, social expressiveness, humility versus narcissism, and artistic or aesthetic vibrance.

Theoretical Framework

The theoretical architecture of the SCPPC integrates principles from psycholinguistics, symbolic interactionism, cognitive consistency, and consumer self-congruity theories.

Osgood’s Semantic Differential Framework

The bedrock foundation of Malhotra’s instrument is Charles E. Osgood, George Suci, and Percy Tannenbaum’s (1957) landmark work, The Measurement of Meaning. Osgood and colleagues demonstrated that human beings perceive and interpret concepts across a shared multidimensional semantic space. In their classical research, three universal dimensions of affective meaning emerged across cultures and languages: Evaluation (good-bad, pleasant-unpleasant), Potency (strong-weak, rugged-delicate), and Activity (active-passive, excitable-calm)—frequently abbreviated as the EPA framework. Malhotra adapted this fundamental paradigm, refining generic linguistic adjectives into a focused set of 15 descriptors optimized specifically for human personalities and commercial brand profiles.

Symbolic Interactionism and the Extended Self

The psychological rationale for placing human beings and physical objects on an identical scale rests heavily on Symbolic Interactionism, as articulated by theorists such as George Herbert Mead and Charles Horton Cooley (the “looking-glass self”). Within this paradigm, human identity is socially constructed through the exchange and possession of shared symbols. Later expanded in consumer psychology by Russell Belk (1988) in his formulation of the extended self, physical objects, brands, and possessions are shown to act as literal vessels and communicative extensions of personal identity. Because individuals rely on products to project who they are and who they desire to become, consumers inherently attribute anthropomorphic qualities to commercial offerings. Malhotra’s scale operationalizes this theoretical insight by treating brands not as inanimate bundles of chemical or mechanical features, but as personality-bearing social entities.

Self-Congruity and Cognitive Dissonance Theories

The SCPPC was directly motivated by Self-Congruity Theory, formulated comprehensively by M. Joseph Sirgy (1982, 1985), and earlier groundwork by Birdwell (1968) and Dolich (1969). According to self-congruity theory, consumer behavior, brand preference, and social affiliation are governed by the degree of psychological match or discrepancy between an individual’s self-concept and the symbolic image of a product or social actor. Rooted in Leon Festinger’s Cognitive Dissonance Theory and Prescott Lecky’s self-consistency formulations, individuals experience psychological discomfort when their behaviors or owned possessions conflict with their internal self-schemas. Conversely, purchasing or identifying with a brand whose personality mirrors one’s own actual or ideal self generates positive affect, reinforces self-esteem, and satisfies self-expressive psychological needs.

Validity

The validation of the SCPPC followed extensive psychometric procedures designed to confirm that a single 15-item semantic differential inventory could measure across human actors, self-images, and inanimate brands without losing construct integrity.

Construct and Content Validity

Malhotra initiated scale construction with a vast pool of over 70 bipolar adjective pairs collected from classic personality inventories, prior semantic differential literature, and lexicon studies. Content validity was evaluated by subjecting the initial item pool to extensive panel reviews by psychometricians and consumer researchers. Items that were overly technical, functionally narrow, or culturally colloquial were systematically purged. The remaining descriptors were tested across multiple diverse stimulus objects to ensure that every pair held plausible, intelligible meanings regardless of whether the target was a human self, a Hollywood film actor, or an automobile brand.

Convergent and Discriminant Validity

Convergent validity was established by correlating SCPPC dimension scores with established clinical and social personality metrics. Dimensions measuring rationality, emotionality, and organization demonstrated strong, statistically significant correlations with corresponding scales on Gough’s Adjective Check List (ACL) and standard external measures of cognitive closure and orderliness. Discriminant validity was proven through repeated-measures designs across distinct brand classes and contrasting social figures. For example, when respondents rated luxury, utilitarian, and economy automobiles using the SCPPC, the instrument successfully produced highly differentiated, statistically divergent profile trajectories across the 15 items ($p < .001$), confirming that the scale is highly sensitive to subtle nuances in product positioning and does not collapse into a generic, halo-driven “good-versus-bad” evaluation.

Predictive and Criterion-Related Validity

The definitive test of the SCPPC lies in its predictive power regarding consumer choice, attitude formation, and testimonial impact. In empirical validation studies, congruence scores—calculated as generalized Euclidean distances ($D$) between self-concept profiles and brand profiles—demonstrated significant predictive validity for actual brand preferences, brand loyalty, and purchase intentions. Respondents exhibited significantly higher preference and adoption likelihood for products whose SCPPC profiles closely mirrored their own actual or ideal self-profiles ($r$ values typically ranging from .42 to .65 across diverse product categories). Furthermore, in celebrity endorsement paradigms, the scale confirmed that when the SCPPC profile distance between the celebrity endorser and the target product is minimized, advertising believability and brand equity ratings increase markedly.

Reliability

The psychometric evaluation of the SCPPC included extensive testing of internal consistency and temporal stability across varying stimulus domains.

Internal Consistency Reliability

Evaluating internal consistency in semantic differential profiles requires caution, as semantic differential instruments capture a multi-faceted profile of meaning rather than a purely unifactorial construct. When analyzed across applicable multi-item factor clusters, the subscale Cronbach’s alpha coefficients reported in Malhotra’s (1981) foundational study ranged between .50 and .70. While values in the .50 to .60 range are considered modest by strict single-construct clinical standards, psychometric literature (e.g., Nunnally & Bernstein, 1994) recognizes that broad, heterogeneous personality profiles comprising bipolar descriptors naturally exhibit lower item-to-total covariation than narrow, redundant unifactorial scales. The modest-to-acceptable alpha values reflect the multidimensional richness of the 15 semantic pairs, ensuring broad conceptual coverage without excessive collinearity.

Test-Retest Reliability and Temporal Stability

To verify that the scale measures stable cognitive schemas rather than transient affective moods, test-retest reliability was evaluated across time intervals ranging from two to four weeks. The test-retest correlation coefficients ($r_{tt}$) across individual items and overall profile congruency indices were exceptionally strong, spanning .70 to .88 across both human and product stimuli. The high temporal stability confirms that consumers’ self-schemas and their symbolic perceptions of established brands represent durable cognitive representations in long-term memory.

Inter-Rater and Cross-Stimulus Reliability

Cross-stimulus reliability was evaluated by comparing factor loading patterns and profile structures across distinct rating conditions: self-ratings, peer ratings, celebrity actor evaluations, and automobile brand assessments. The factor matrices displayed high structural invariance, demonstrating that the semantic differential pairs maintained consistent interpretive meaning regardless of whether the respondent was rating an internal psychological state or an external commercial object.

Factor Analysis

The derivation of the final 15 items of the SCPPC relied on rigorous exploratory factor analysis (EFA) conducted across multiple stimulus categories. Malhotra’s primary methodological ambition was to discover a shared factor structure that remained invariant whether the target stimulus was a person or an inanimate product.

Initial Pool and Factor Reduction

The initial pool of 70 bipolar adjective pairs was administered to sample cohorts instructed to evaluate three distinct categories of targets:

1. Self-Concepts: Actual self-perceptions of the participating respondents.
2. Person Concepts: Diverse, well-known actors and public figures representing varied social archetypes (e.g., Robert Redford, Woody Allen, Clint Eastwood).
3. Product Concepts: Major automobile brands spanning diverse market segments, from luxury imports to utilitarian domestic vehicles (e.g., Cadillac, Volkswagen, Ford).

Data matrices were subjected to principal axis factoring followed by orthogonal (Varimax) and oblique (Promax) rotations. Items were evaluated against strict psychometric retention criteria:

• High factor loadings ($ge .45$) on a primary conceptual dimension across all three stimulus domains (self, persons, and brands).
• Minimal cross-loadings ($le .25$) on secondary factors, preventing ambiguous multidimensional interpretive contamination.
• Universal intelligibility and linguistic relevance across both biological organisms and manufactured commercial goods.

Elimination of Non-Generalizable Dimensions

A major breakthrough during the factor analytic purification was the intentional removal of dimensions that failed cross-domain invariance. Specifically, the candidate dimensions of Tautness (e.g., tense-relaxed, tight-loose) and Aggressiveness (e.g., aggressive-peaceful), while robust when rating human personalities, exhibited unstable factor loadings and severe semantic confusion when applied to automobile brands or consumer products. Respondents struggled to conceptualize what a “taut” or “submissively aggressive” brand represented without introducing idiosyncratic metaphors. Consequently, Malhotra eliminated these items, retaining only those semantic pairs that yielded clean, replicable, and logically cohesive factor structures across all stimulus domains.

Final Factor Solution

The resulting 15-item inventory converged into a stable multi-factor solution explaining over 60% of the total variance across stimuli. The primary dimensions extracted reflected core themes of Sociability & Affective Valence, Structural Order & Rationality, Assertiveness & Stature, and Modernity & Style. The clean factor patterns confirmed that 15 bipolar pairs represent the optimal balance between psychometric parsimony and comprehensive descriptive coverage.

Instrument / Measurement Tool

The SCPPC is structured as a standardized, self-administered semantic differential inventory. Below are the key administrative and structural specifications of the tool:

• Test Type: Standardized Semantic Differential Rating Scale.
• Administration Format: Self-report paper-and-pencil or digital online survey questionnaire.
• Target Populations: Adolescent and adult populations ($ge 16$ years of age) possessing standard literacy skills. Applicable in academic research, consumer testing panels, and strategic corporate branding workshops.
• Administration Time: Approximately 3 to 5 minutes per rated entity (e.g., 10 to 15 minutes to complete ratings for actual self, ideal self, and two target brands).
• Item Format: 15 bipolar adjective pairs separated by a 7-point continuum.
• Response Continuum: Points along the 7-point scale are typically labeled numerically (1 to 7) or conceptually from left to right (e.g., Extremely, Quite, Slightly, Neither/Neutral, Slightly, Quite, Extremely).
• Directionality and Counterbalancing: In experimental administration, the positive and negative poles of the adjective pairs are counterbalanced and alternated across items to prevent acquiescence bias, straight-lining, and passive response patterns.
• Scoring Models:
  • Raw Profile Analysis: Direct graphical plotting of the 15-point semantic profile across targets to identify visual peaks, valleys, and structural divergence.
  • Dimension Summation: Aggregation of items belonging to specific factor subscales (e.g., Rationality, Modernity, Refinement) scored from 1 to 7.
  • Generalized Euclidean Distance ($D$): Computed to determine absolute multidimensional self-congruity:
    
    $$D = \sqrt{\sum_{i=1}^{15} (P_i – S_i)^2}$$
    
    where $P_i$ represents the rating of the product/brand on item $i$, and $S_i$ represents the individual’s self-concept rating on item $i$. Lower $D$ values indicate higher self-congruence.
  • Absolute Difference Score ($|D|$): An alternative linear congruence metric:
    
    $$|D| = \sum_{i=1}^{15} |P_i – S_i|$$
  • Profile Correlation Coefficient ($r_p$): Pearson product-moment correlation calculated across the 15 item scores between self and brand profiles, measuring congruence in overall structural shape rather than absolute magnitude.

Permissions & Fee and Test Year

The Self-Concepts, Person Concepts, and Product Concepts Scale was formally established and published in 1981:

• Original Publication: Malhotra, N. K. (1981). A scale to measure self-concepts, person concepts, and product concepts. Journal of Marketing Research, 18(4), 456–464.
• Copyright Holder: The original journal article is copyrighted by the American Marketing Association (AMA).
• Usage Rights and Fees: The 15 bipolar adjective pairs constituting the measurement scale were published openly within the 1981 journal article for academic, educational, and scientific research purposes. Independent researchers and university scholars may utilize the scale in academic studies without licensing fees under fair use scholarly conventions, provided full academic attribution and bibliographic citation are given to Dr. Naresh K. Malhotra and the Journal of Marketing Research.
• Commercial Applications: Commercial enterprises, market research corporations, and proprietary consulting agencies seeking to embed the scale within commercial diagnostic software platforms or for-profit branding products should consult permissions guidelines through the American Marketing Association or Copyright Clearance Center.

References

• Belk, R. W. (1988). Possessions and the extended self. Journal of Consumer Research, 15(2), 139–168. https://doi.org/10.1086/209154
• Birdwell, A. E. (1968). A study of the influence of image congruence on consumer choice. The Journal of Business, 41(1), 76–88. https://doi.org/10.1086/295047
• Dolich, I. J. (1969). Congruence relationships between self images and product brands. Journal of Marketing Research, 6(1), 80–84. https://doi.org/10.1177/002224376900600109
• Festinger, L. (1957). A theory of cognitive dissonance. Stanford University Press. https://doi.org/10.1515/9781503620766
• Malhotra, N. K. (1981). A scale to measure self-concepts, person concepts, and product concepts. Journal of Marketing Research, 18(4), 456–464. https://doi.org/10.1177/002224376901800407
• Malhotra, N. K. (1988). Self-concept and product choice: An integrated perspective. Journal of Economic Psychology, 9(1), 1–28. https://doi.org/10.1016/0167-4870(88)90029-3
• Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric theory (3rd ed.). McGraw-Hill.
• Osgood, C. E., Suci, G. J., & Tannenbaum, P. H. (1957). The measurement of meaning. University of Illinois Press.
• Sirgy, M. J. (1982). Self-concept in consumer behavior: A critical review. Journal of Consumer Research, 9(3), 287–300. https://doi.org/10.1086/208924
• Sirgy, M. J. (1985). Using self-congruity and ideal congruity to predict purchase intention. Journal of the Academy of Marketing Science, 13(1), 195–206. https://doi.org/10.1007/BF02729714

Items of the Scale