Introduction
The Comparison Standards Scale for Appearance (CSS-A) is a self-report research instrument that assesses how people compare their appearance across several comparison standards: social, temporal, counterfactual, criteria-based and dimensional. Nexhmedin Morina, Peter McCarthy, Thomas Meyer and Pascal Schlechter published the refined version in 2023.
The refined CSS-A rates three parts of each comparison: how often it happens, the perceived discrepancy and the feelings it produces. This guide explains its structure, scoring and psychometric evidence.
Key Features of the Comparison Standards Scale for Appearance (CSS-A)
Purpose and Use
The CSS-A assesses appearance-related comparison processes across multiple standards. The refined version measures three components of the comparison process:
Comparison frequencyPerceived discrepancyEngendered affect, meaning the feelings the comparison producesTarget Population
The CSS-A is intended for adults aged 18 and older.
Structure
The refined CSS-A has 16 obligatory frequency items, with up to 32 conditional follow-up sub-items on discrepancy and affect, for up to 48 responses in total. The items cover five comparison standards:
Standard
What it covers
Social
Comparisons with familiar and unfamiliar others
Temporal
Comparisons with one's past or future appearance
Counterfactual
Comparisons with how one might look if past behaviors or events had been different
Criteria-based
Comparisons with expectations or standards about appearance
Dimensional
Comparisons between appearance and other personal attributes
Scoring Method
Each frequency item asks about comparisons over the past 3 weeks:
Frequency: a 6-point scale from 0 (not at all) to 5 (very often).Discrepancy: if frequency is above 0, a 6-point scale from 0 (not at all) to 5 (much better/worse).Affective impact: if frequency is above 0, a bipolar 7-point scale from -3 (much worse) to +3 (much better).Skipped follow-ups: when frequency is 0, the discrepancy and affect values are scored as 0 for analysis.Scoring gives separate aversive and appetitive comparison scores for frequency, discrepancy and affect. No diagnostic total score or clinical cut-off is reported.
Administration Format
The CSS-A is a self-report questionnaire. The follow-up discrepancy and affect items appear only when a respondent reports making that comparison.
Applications of the Comparison Standards Scale for Appearance (CSS-A)
The CSS-A is best suited to research:
Body image research: studying how people compare their appearance across standards.Self-perception and well-being: its scores relate to body satisfaction, physical self-concept, self-esteem, psychological well-being and depressive symptoms.Languages and availability
The refined validation is published in English in Cognitive Therapy and Research. A German version was used in the initial development study. Study materials are available on the Open Science Framework.
Reliability and Validity
The refined validation study supported a two-factor structure of aversive and appetitive comparisons. Internal consistency was:
Component
Aversive comparisons
Appetitive comparisons
Frequency
alpha 0.73; omega 0.74
alpha 0.73; omega 0.74
Discrepancy
alpha 0.62; omega 0.63
alpha 0.70; omega 0.71
Affect
alpha 0.81; omega 0.81
alpha 0.71; omega 0.71
The CSS-A showed convergent and incremental validity through associations with appearance social comparison, body satisfaction, physical self-concept, self-esteem, psychological well-being and depressive symptoms.
Validation studies:
Measuring appearance-related comparisons: validation of the Comparison Standards Scale for Appearance (2023): study linkHow we compare: a new approach to assess aspects of the comparison process for appearance-based standards (2023): study linkLimitations and Considerations
Keep these points in mind:
Research instrument: the CSS-A is best suited to research rather than clinical diagnosis or screening.No cut-offs: no diagnostic total score or clinical cut-off is reported.Lower discrepancy reliability: internal consistency for aversive discrepancy was lower (alpha 0.62) than for the other components.Conditional items: the number of responses varies with how many comparisons a person reports.Other Versions And Related Questionnaires
The initial CSS-A, reported by McCarthy and colleagues in 2023, had 24 obligatory frequency items with 48 possible discrepancy and affect sub-items. A German version was used in that initial study.
These questionnaires are related:
Physical Appearance Comparison Scale (PACS), its revised version and PACS-3Body Comparison ScaleUpward and Downward Physical Appearance Comparison ScalesSocial Comparison Scale (SCS)Iowa-Netherlands Comparison Orientation Measure (INCOM)Counterfactual Thinking for Negative Events ScaleAdditional Resources
The refined validation article: linkFor inquiries, contact Prof. Dr. Nexhmedin Morina, Institute of Psychology, University of Münster, Fliednerstr. 21, 48149 Münster, Germany, at morina@uni-muenster.de.Browse more psychology questionnaires in the ResRef database.Frequently Asked Questions (FAQ)
What does the Comparison Standards Scale for Appearance measure?The CSS-A measures how people compare their appearance across five standards: social, temporal, counterfactual, criteria-based and dimensional. It rates comparison frequency, perceived discrepancy and the feelings produced.
How is the CSS-A scored?Frequency is rated from 0 to 5 for the past 3 weeks. When a comparison occurred, discrepancy is rated 0 to 5 and affect from -3 to +3. Scores are grouped into aversive and appetitive comparisons.
How many items does the CSS-A have?The refined CSS-A has 16 obligatory frequency items and up to 32 conditional follow-up items on discrepancy and affect, for up to 48 responses. The initial version had 24 frequency items.
Can the CSS-A be used for clinical diagnosis?No. The CSS-A has no diagnostic total score or clinical cut-off. It is best suited to research on body image, self-perception and psychological well-being.
A Word from ResRef About the Comparison Standards Scale for Appearance (CSS-A)
The Comparison Standards Scale for Appearance (CSS-A) is a multidimensional research instrument designed to assess how individuals compare their appearance across several comparison standards. The refined validated version provides a structured assessment of frequency, perceived discrepancy and affective impact, with evidence supporting aversive and appetitive comparison dimensions. It is best suited for research on body image, self-perception and psychological well-being rather than clinical diagnosis or screening.
References
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/s10608-022-10337-6McCarthy, P. A., Meyer, T., Back, M. D., & Morina, N. (2023). How we compare: A new approach to assess aspects of the comparison process for appearance-based standards and their associations with individual differences in wellbeing and personality measures. PLOS ONE, 18(1), e0280072. https://doi.org/10.1371/journal.pone.0280072