Comparison Standards Scale for Appearance–English Version (CSS-A)

Abstract

The Comparison Standards Scale for Appearance—English Version (CSS-A; Morina et al., 2023) is a 48-item psychological instrument designed to comprehensively evaluate an individual’s engagement in appearance-related comparative processes. The scale is unique in its capacity to capture multi-standard comparisons, including social, temporal, counterfactual, criteria-based, and dimensional upward and downward comparisons regarding one’s physical appearance. The CSS-A is grounded in the theoretical framework of the General Comparative-Processing Model, which differentiates between comparisons perceived as aversive (threatening to the comparer’s motives) and those deemed appetitive (consonant with or positively challenging to motives).

The measure assesses three distinct components for each comparison type: the frequency of the comparison, the perceived discrepancy resulting from the comparison, and the engendered affect (emotional outcome). Developed to address a gap in existing English-validated tools for multi-standard comparison assessment, the CSS-A demonstrated robust psychometric properties, including strong internal consistency and a clear two-factor model confirmed by factor analysis.

Keywords

Appearance-Related Comparison, Appetitive Comparisons, Aversive Comparisons, Comparison Standards, Engendered Affect, Frequency, General Comparative-Processing Model, Incremental Validity, Perceived Discrepancy, Social Comparison, Physical Appearance, Psychological Well-being.

Authors

Morina, Nexhmedin, McCarthy, Peter, Meyer, Thomas, Schlechter, Pascal.

Purpose

The primary purpose of the Comparison Standards Scale for Appearance (CSS-A) is to quantify the extent to which individuals engage in upward and downward comparisons concerning their own appearance across a range of standards. This includes comparisons made through social interactions, temporal shifts, counterfactual thinking, criteria-based evaluations, and dimensional attributes.

The instrument aims to capture the full scope of the comparative process by isolating three specific dimensions: the frequency of engaging in these comparisons, the magnitude of perceived discrepancy (the felt difference between the self and the comparison standard), and the resulting engendered affect (the specific emotional response, whether positive or negative, associated with the comparison).

Construct

The core construct measured by the CSS-A is Appearance-Related Comparative Processing. This construct is not treated as a monolithic entity but is differentiated based on the individual’s motivational response, in line with the General Comparative-Processing Model.

The scale defines two primary factors within this construct: Aversive Comparisons and Appetitive Comparisons. Aversive comparisons are those perceived as threatening or damaging to the self, often leading to negative outcomes like decreased self-esteem or depressive symptoms. Appetitive comparisons are those perceived as challenging but motivating, often consonant with personal goals, leading to positive affect or increased striving. By measuring the frequency, discrepancy, and affect related to both aversive and appetitive comparisons, the CSS-A offers a comprehensive and motivationally relevant framework for studying self-perception and body image.

Validity

The CSS-A demonstrated strong evidence for its validity through correlations with related measures and its unique predictive power.

Convergent Validity

The CSS-A subscales showed significant correlations with several related psychological constructs, confirming that the scale measures phenomena theoretically linked to appearance comparisons. These constructs included existing measures of physical appearance social comparison, body satisfaction, physical self-concept, self-esteem, psychological well-being, and depressive symptoms.

Incremental Validity

Multiple regression analyses were performed to evaluate the scale’s incremental validity. The results established that both the aversive and appetitive comparison factors were significant predictors of key outcome variables, such as physical self-concept, body satisfaction, self-esteem, depression, and psychological well-being. Crucially, this predictive strength remained significant even when controlling for existing measures of physical appearance social comparison and body satisfaction, indicating that the CSS-A provides unique and valuable information beyond what older instruments can capture.

Reliability

The reliability of the CSS-A was supported through acceptable internal consistency estimates across all factors and components.

Internal Consistency

Internal consistency was assessed using Cronbach’s alpha (𝛼) and McDonald’s omega (ωtotal). The values for both the aversive and appetitive comparison factors were found to be acceptable across the three measurement components:

• Frequency Component: Acceptable for Aversive Comparisons (𝛼 = .73; ωtotal= .74) and Appetitive Comparisons (𝛼 = .73; ωtotal= .74).

• Discrepancy Component: Acceptable for Aversive Comparisons (𝛼 = .62; ωtotal= .63) and Appetitive Comparisons (𝛼 = .70; ωtotal= .71).

• Affect Component: Acceptable for Aversive Comparisons (𝛼 = .81; ωtotal= .81) and Appetitive Comparisons (𝛼 = .71; ωtotal= .71).

These consistent estimates confirm that the items within each factor and component are highly correlated and reliably measure the intended underlying construct.

Factor Analysis

The underlying structure of the CSS-A was examined through advanced statistical modeling.

Structural Model

Confirmatory Factor Analyses (CFA) were performed, demonstrating that a two-factor model, clearly separating “aversive comparisons” from “appetitive comparisons,” provided the best fit to the data. This model was statistically superior to a bifactor model that included a general comparative thinking factor. The two-factor structure exhibited good fit indices (Comparative Fit Index [CFI]) and acceptable indices (Tucker-Lewis Index [TLI], Standardized Root Mean Square Residual [SRMR], and Root Mean Square Error of Approximation [RMSEA]), confirming the structural validity of the two distinct factors.

Measurement Invariance

Measurement invariance was assessed across sexes (males and females) to ensure the scale operates equivalently across groups. Strict measurement invariance was established for the Frequency and Affect scales, indicating that both sexes interpret and respond to these components similarly. The Discrepancy subscale achieved partial strict measurement invariance, suggesting that while the scale is largely invariant, minor differences might exist in how males and females quantify the perceived discrepancy magnitude.

Instrument

Test Type: Original Inventory/Questionnaire

Format: The CSS-A is a 48-item scale structured into three components, each containing 16 items:

• Frequency: 16 items assess the frequency of appearance-related comparisons in the past 3 weeks using a six-point Likert scale (0 = not at all to 5 = very often).

• Discrepancy: 16 items evaluate the perceived discrepancy related to appearance comparisons on a six-point Likert scale (0 = not at all to 5 = much better/worse).

• Affect: 16 items measure the affective outcome of appearance comparisons on a bipolar seven-point Likert scale (-3 = much worse to +3 = much better).

Language Available: English

Population Group: Human; Male; Female

Age Group: Adolescence (13-17 yrs); Adulthood (18 yrs & older)

Population Details: The respondents in the validation study were English-speaking individuals aged 17 and older. The administration method for the validation study was electronic (online).

Test Methodology: The development and validation of the CSS-A employed rigorous methodologies including Test Validity, Convergent Validity, Criterion Validity, Test Reliability, Internal Consistency, Factor Analysis, Confirmatory Factor Analysis, and Measurement Invariance.

Keywords

Appearance-Related Comparison, Appetitive Comparisons, Aversive Comparisons, Comparison Standards, Engendered Affect, Frequency, General Comparative-Processing Model, Incremental Validity, Perceived Discrepancy, Social Comparison.

Authors

Author ORCID Identifier:

• Morina, Nexhmedin: http://orcid.org/0000-0002-2331-9140

• Meyer, Thomas: http://orcid.org/0000-0001-7228-5365

Affiliation Email addresses:

• Morina, Nexhmedin: University of Münster Institute of Psychology, [email protected]

• McCarthy, Peter: University of Münster Institute of Psychology, [email protected]

• Meyer, Thomas: University of Münster Institute of Psychology, [email protected]

• Schlechter, Pascal: University of Cambridge Department of Psychiatry, [email protected]

Correspondence Address: Morina, Nexhmedin: University of Münster, Institute of Psychology, Fliednerstr. 21, Münster, Germany, 48149, [email protected]

Permissions & Fee and Test Year

Permissions: Contact Corresponding Author

Fee: No

Commercial: No

Test Year: 2023

Reference’s

Morina, N., McCarthy, P., Meyer, T., & Schlechter, P. (2023). Measuring appearance-related comparisons: Validation of the Comparison Standards Scale for Appearance. Cognitive Therapy and Research, 47(1), 123–139. https://doi.org/10.1007/s10608-022-10337-6

Items of the Comparison Standards Scale for Appearance–English Version (CSS-A)

The complete set of 48 items comprising the Comparison Standards Scale for Appearance—English Version (CSS-A) was not provided in the source material. The instrument is comprised of 16 core items, each of which is rated across the three components: Frequency, Discrepancy, and Affect.