The Congruence (Self with Brand) (CON)<\/strong> scale, developed by Einar Breivik and Helge Thorbj\u00f8rnsen (2008), is a concise, psychometrically validated three-item instrument designed to assess direct, holistic self-image congruence between a consumer and a brand. Rooted in self-concept theory and the extended self paradigm, the scale quantifies the degree to which an individual perceives a psychological alignment, personality match, and identity overlap with a target brand. Rather than employing indirect, attribute-by-attribute mathematical discrepancy models (e.g., comparing semantic differential ratings of the self against ratings of the brand across multiple traits), this instrument adopts an integrative, subjective assessment approach. Respondents evaluate statements using a 7-point Likert-type response format anchored from 1 (“Strongly disagree”) to 7 (“Strongly agree”). Psychometric evaluations conducted within structural equation modeling frameworks establish that the scale is strictly unidimensional, displaying high internal consistency reliability (\u03b1 > .88; Composite Reliability > .88; Average Variance Extracted > .70). The scale demonstrates robust convergent validity with consumer-brand relationship quality, affective brand attachment, and brand loyalty, as well as distinct discriminant validity against related constructs such as brand satisfaction, trust, and brand personality dimensions. The scale serves as an efficient, low-burden measurement tool for market researchers, consumer psychologists, and psychometricians investigating consumer identity, symbolic consumption, and the relational foundations of brand equity<\/span>.<\/p>\n Brand-self congruence, self-image congruence, consumer-brand relationships, symbolic consumption, self-concept, social identity theory, extended self, brand identification, psychometrics, structural equation modeling.<\/p>\n The Congruence (Self with Brand) (CON) scale was developed and operationalized by:<\/p>\n The primary purpose of the Congruence (Self with Brand) scale is to capture a consumer\u2019s global subjective assessment of the similarity between their personal identity and a commercial brand’s perceived image or personality. In contemporary psychological and marketing paradigms, brands do not operate merely as bundles of functional utilities; they function as potent symbolic resources that individuals employ to express, validate, and reinforce their self-concepts (Belk, 1988; Fournier, 1998).<\/p>\n Historically, consumer psychologists attempted to measure self-image congruence using discrepancy formulations (e.g., calculating Euclidean distances or absolute difference scores between separate ratings of self-image and brand-image across dozens of personality traits). However, psychometricians demonstrated that mathematical discrepancy scores suffer from severe statistical artifacts, including reduced reliability, spurious correlations, restriction of variance, and systematically confounded main effects (Cronbach, 1958; Peter et al., 1993; Sirgy et al., 1997). Breivik and Thorbj\u00f8rnsen (2008) introduced this three-item direct measure to overcome these methodological limitations, capturing the consumer’s psychological gestalt of congruence without imposing pre-defined trait vocabularies.<\/p>\n The instrument is widely applied in:<\/p>\n The psychological construct assessed by the CON scale is Self-Image Congruence<\/em> (specifically brand-self congruence). Self-image congruence is defined as the degree of perceived psychological match or consistency between an individual\u2019s self-concept and the symbolic image or perceived personality of a brand (Sirgy, 1982). Within modern cognitive and social psychology, the self-concept<\/a> is conceptualized as a multi-dimensional, dynamic cognitive schema comprising four core facets:<\/p>\n The Congruence (Self with Brand) construct synthesizes these distinct dimensions into an overall, subjective alignment. Rather than forcing an artificial separation between actual and ideal self-dimensions, the CON scale taps into the global holistic sensation of “fit”. When a brand exhibits high brand-self congruence, it signifies that the brand’s perceived human-like attributes (brand personality<\/a>; Aaker, 1997) mirror or complement the focal consumer’s identity schema.<\/p>\n For example, a consumer who views their core identity as innovative, creative, and non-conformist will experience high brand-self congruence when interacting with a brand whose public meaning conveys identical values. Conversely, when there is cognitive dissonance between the user’s personal values and the brand’s cultural connotations, brand-self congruence approaches the lower anchors of the scale. This match fulfills fundamental psychological needs: the need for self-consistency<\/em> (self-verification theory) and the need for self-enhancement<\/em>.<\/p>\n The Congruence (Self with Brand) scale is anchored in three primary theoretical traditions within psychology and consumer behavior:<\/p>\n Formulated definitively by M. Joseph Sirgy (1982, 1986), Self-Congruity Theory<\/a> posits that consumer behavior is partially determined by the cognitive comparison between the user’s self-schema and the stereotypic product-user image. Sirgy established that this cognitive matching process operates directly on consumer attitudes, brand preference, and purchase intentions. Sirgy et al. (1997) proved that direct holistic measures of congruence possess superior predictive validity over indirect semantic profile matching, providing the foundational theoretical justification for Breivik and Thorbj\u00f8rnsen\u2019s (2008) operationalization.<\/p>\n According to Russell Belk\u2019s (1988) seminal formulation of the extended self<\/em>, human beings consciously and unconsciously incorporate external possessions, brands, places, and activities into their personal narrative and self-definition. Drawing from symbolic interactionism (Blumer, 1969; Mead, 1934), objects are endowed with shared symbolic meaning. A consumer does not merely own or utilize a brand; the brand acts as a communicative vehicle that projects the self to the internal ego and the external social matrix. Item 1 of the CON scale (“Using this brand says a lot about who I am”) explicitly operationalizes this symbolic interactionist mechanism.<\/p>\n Rooted in Henri Tajfel and John Turner\u2019s (1979) Social Identity Theory<\/a>, individuals categorize themselves into social groups to maintain a positive self-evaluation. Brands frequently serve as symbolic markers of in-group membership or aspirations. When an individual perceives that other consumers who use the brand share their personal attributes, social identification occurs. Item 2 (“People similar to me use this brand”) measures the social-identity alignment dimension of self-congruence, capturing perceived in-group similarity.<\/p>\n Breivik and Thorbj\u00f8rnsen (2008) subjected the Congruence (Self with Brand) scale to comprehensive empirical validation across two competing structural models of consumer-brand relationships, utilizing extensive empirical datasets across diverse product categories (including mobile telecommunications and online banking services).<\/p>\n Convergent validity was verified via confirmatory factor analysis (CFA). All standardized factor loadings (\u03bb) for the three items exceeded the recommended psychometric threshold of .70, with individual loadings ranging between .81 and .92 (p < .001). The Average Variance Extracted (AVE) substantially exceeded the .50 benchmark (AVE > .72), confirming that the construct captures considerably more shared item variance than random measurement error<\/span>.<\/p>\n Discriminant validity was established against closely related relational constructs, including:<\/p>\n Applying the Fornell-Larcker (1981) criterion, the square root of the AVE for the CON construct was greater than any bivariate correlation between CON and other latent factors in the structural models. Furthermore, nested chi-square difference tests (\u0394\u03c7\u00b2) comparing a constrained model (where correlation between CON and adjoining constructs was fixed to 1.0) against an unconstrained model confirmed statistically significant superiority for the unconstrained solutions (p < .001), indicating that brand-self congruence occupies a distinct nomological space<\/span>.<\/p>\n Within structural equation models, the CON scale demonstrated robust predictive utility. High self-congruence significantly and positively predicted affective commitment, brand advocacy, resilience to negative brand information, and repurchase loyalty. Breivik and Thorbj\u00f8rnsen (2008) demonstrated that congruence operates as a primary psychological driver facilitating the transition from transactional brand usage to deep, relationship-based consumer attachment.<\/p>\n The Congruence (Self with Brand) scale displays exceptionally high internal consistency reliability across empirical consumer research samples. Published empirical evaluations indicate:<\/p>\n Both exploratory factor analyses (EFA) and confirmatory factor analyses (CFA) corroborate the strict unidimensionality of the three-item instrument.<\/p>\n Principal Axis Factoring and Principal Component Analyses reveal a single dominant factor with an eigenvalue substantially greater than 1.0 (typically > 2.3), accounting for over 75% of the total variance across items. The scree plot indicates a sharp elbow after the first factor, confirming the absence of secondary dimensions<\/span>.<\/p>\n In structural equation modeling frameworks, the measurement model for the Congruence (Self with Brand) construct demonstrates excellent model fit. Representative fit indices reported across validation studies consistently meet or exceed Hu and Bentler\u2019s (1999) rigorous criteria:<\/p>\n Standardized factor loadings for the individual manifest indicators are uniformly high:<\/p>\n Because a three-item single-factor model is just-identified (zero degrees of freedom) when evaluated in isolation, fit indices are derived when the construct is embedded in multi-construct measurement models alongside related brand relationship variables, where it exhibits excellent overall local and global fit.<\/p>\n The Congruence (Self with Brand) scale was published in 2008 in the Journal of the Academy of Marketing Science<\/em>:<\/p>\n Response Scale:<\/strong> 7-point Likert-type scale (1 = Strongly disagree, 7 = Strongly agree)<\/span><\/p>\n A psychometric review of the Congruence (Self with Brand) (CON) scale by Breivik and Thorbj\u00f8rnsen (2008), measuring consumer-brand identity alignment and symbolic fit.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","categories":[1076,2309,2],"tags":[15367,2528,15368,2790,4607,451,3769],"class_list":["post-4490","psych_scale","type-psych_scale","status-publish","hentry","category-consumer-psychology","category-marketing-scales","category-psychometrics","tag-brand-congruence","tag-brand-personality","tag-breivik-and-thorbjornsen","tag-consumer-brand-relationships","tag-extended-self","tag-psychometric-scale","tag-self-congruity"],"_links":{"self":[{"href":"https:\/\/ashadocs.org\/index.php?rest_route=\/wp\/v2\/psych_scale\/4490","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ashadocs.org\/index.php?rest_route=\/wp\/v2\/psych_scale"}],"about":[{"href":"https:\/\/ashadocs.org\/index.php?rest_route=\/wp\/v2\/types\/psych_scale"}],"author":[{"embeddable":true,"href":"https:\/\/ashadocs.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ashadocs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4490"}],"version-history":[{"count":0,"href":"https:\/\/ashadocs.org\/index.php?rest_route=\/wp\/v2\/psych_scale\/4490\/revisions"}],"wp:attachment":[{"href":"https:\/\/ashadocs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ashadocs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ashadocs.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Keywords<\/h2>\n
Authors<\/h2>\n
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Purpose<\/h2>\n
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Psychological Construct<\/h2>\n
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Theoretical Framework<\/h2>\n
1. Self-Congruity Theory<\/h3>\n
2. The Extended Self and Symbolic Interactionism<\/h3>\n
3. Social Identity Theory<\/h3>\n
Validity<\/h2>\n
Construct and Convergent Validity<\/h3>\n
Discriminant Validity<\/h3>\n
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Nomological and Predictive Validity<\/h3>\n
Reliability<\/h2>\n
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Factor Analysis<\/h2>\n
Exploratory Factor Analysis (EFA)<\/h3>\n
Confirmatory Factor Analysis (CFA)<\/h3>\n
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Instrument \/ Measurement Tool<\/h2>\n
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Permissions & Fee and Test Year<\/h2>\n
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References<\/h2>\n
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Items of the Scale<\/h2>\n
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