Marlowe-Crowne Social Desirability Scale (M-C SDS)

1. Abstract

The Marlowe-Crowne Social Desirability Scale (M-C SDS; Crowne & Marlowe, 1960) is one of the most widely utilized psychometric instruments in psychological, behavioral, and organizational assessment. Developed to overcome the confounding overlap between social desirability response bias and genuine psychopathological symptom reporting present in earlier inventories—most notably Allen L. Edwards’ Social Desirability Scale—the M-C SDS measures an individual’s generalized need for social approval and their tendency to present themselves in an overly favorable cultural light. The scale consists of 33 self-report items utilizing a dichotomous true/false response format, comprising 18 socially desirable behaviors that are statistically improbable (keyed True) and 15 common, minor human transgressions and socially disapproved behaviors that are universally experienced (keyed False).

Extensive psychometric investigations have affirmed the scale’s robust statistical architecture. In the foundational validation sample of undergraduate students, Crowne and Marlowe demonstrated high internal consistency using the Kuder-Richardson Formula 20 (r_KR-20 = .88) and remarkable temporal stability over a one-month test-retest interval (r = .89). Subsequent meta-analytic and psychometric evaluations across diverse non-clinical and clinical populations have consistently corroborated internal reliability indices ranging from .72 to .88, alongside convergent correlations with conformity paradigms, acquiescence measures, and defensiveness inventories. Factor-analytic investigations have sparked meaningful theoretical debate, shifting the understanding of the scale from a strictly unidimensional index of response distortion to a bifactor or multidimensional construct capturing both active “Attribution” (asserting positive, socially endorsed qualities) and passive “Denial” (repudiating socially unacceptable impulses). This comprehensive review provides an in-depth academic synthesis of the scale’s theoretical derivation, psychometric properties, structural validity, administrative nuances, short-form derivations, and enduring utility across empirical research and applied psychological assessment.

2. Keywords

Marlowe-Crowne Social Desirability Scale, M-C SDS, Social Desirability Bias, Need for Approval, Response Distortion, Impression Management, Self-Deception, Psychometrics, Factor Structure, Test Validity, Test Reliability, Short Forms

3. Authors

The Marlowe-Crowne Social Desirability Scale was authored by Douglas P. Crowne and David Marlowe. The instrument was conceptualized and empirically validated during their tenure in the Department of Psychology at The Ohio State University. Their landmark study, titled “A new scale of social desirability independent of psychopathology,” was published in 1960 in the Journal of Consulting Psychology.

• Douglas P. Crowne, Ph.D.: Professor Emeritus of Psychology at the University of Waterloo, Ontario, Canada; previously on the faculty of The Ohio State University and the University of Connecticut. Dr. Crowne made seminal contributions to personality assessment, experimental clinical psychology, and the study of human motivation and defensiveness.
• David Marlowe, Ph.D.: Formerly Professor of Psychology and Chair of the Department of Psychology at the University of California, Santa Cruz; also affiliated with the Veterans Administration Hospital in Palo Alto, California, and the Walter Reed Army Institute of Research. Dr. Marlowe was a distinguished personality theorist focused on interpersonal dynamics, approval motivation, and social influence processes.

4. Purpose

The primary purpose of the Marlowe-Crowne Social Desirability Scale is to quantify an individual’s tendency to engage in socially desirable responding, operationalized theoretically not merely as conscious mendacity or faking, but as a broader, stable personality trait termed the need for social approval. When responding to self-report inventories, human subjects often modulate their answers to align with perceived cultural ideals, values, and normative expectations. The M-C SDS was specifically developed to assess this systematic response style while avoiding the critical methodological pitfall that plagued earlier measures: the confounding of socially desirable responding with genuine emotional adjustment or mental health.

Research Applications

In empirical psychological research, the M-C SDS functions primarily as a methodological control mechanism and validity check. Self-report measures assessing socially sensitive constructs—such as prejudice, substance abuse, sexual behavior, unethical conduct, psychopathy, and organizational citizenship—are exceptionally vulnerable to self-report bias. Researchers routinely administer the M-C SDS alongside target instruments to:

• Detect systematic distortion and identify participants whose response profiles may be compromised by impression management.
• Statistically partial out social desirability variance via partial correlation, analysis of covariance (ANCOVA), or hierarchical regression modeling, ensuring that observed relationships between primary variables reflect substantive psychological phenomena rather than shared method variance.
• Screen or stratify experimental cohorts based on approval motivation, investigating how high versus low need-for-approval individuals differ in susceptibility to social influence, conformity pressures, verbal conditioning, and cognitive dissonance reduction.

Clinical and Applied Assessment

Beyond methodological screening, the M-C SDS possesses substantial clinical diagnostic value as an index of psychological defensiveness, repressive coping styles, and interpersonal vulnerability. Individuals scoring exceptionally high on the scale frequently exhibit an avoidant self-protective style: they present an idealized, invulnerable facade, suppress emotional distress, minimize intrapsychic conflicts, and demonstrate an excessive fear of social rejection or negative evaluation. In forensic evaluations, personnel selection, and child custody determinations, the instrument provides objective empirical evidence regarding whether an examinee is attempting to “fake good” or exhibit an unrealistic portrait of psychological virtue and emotional stability.

5. Psychological Construct

The Marlowe-Crowne scale operationalizes social desirability from an interpersonal, motivational perspective. While earlier psychometricians viewed socially desirable responding primarily as an unwanted test-taking artifact, Crowne and Marlowe reconceptualized it as the behavioral manifestation of an underlying, pervasive personality disposition: the need for approval and the defensive avoidance of disapproval.

Deconstructing the Need for Approval

Individuals with an elevated need for approval are characterized by an intense vulnerability to social sanction and a compulsive motivation to secure positive interpersonal feedback. This psychological construct is characterized by several core behavioral patterns:

• Evaluation Apprehension and Risk Aversion: High approval-dependent individuals experience heightened anxiety in evaluative contexts. To shield themselves from social ostracism or criticism, they adopt cautious, risk-averse behavioral strategies, routinely withholding private opinions if they anticipate disagreement from peers or authority figures.
• Behavioral Conformity and Compliance: Extensive laboratory experiments conducted by Crowne and Marlowe (1964) revealed that high scorers on the M-C SDS conform significantly more to group norms in Asch-type perceptual paradigms, demonstrate greater susceptibility to subtle verbal conditioning (e.g., Greenspoon effect), and alter their personal attitudes to align with prestige-laden communicators far more readily than low scorers.
• Repression and Defensive Denial: In clinical interactions, high need for approval is intimately linked to the repressive coping style (Weinberger et al., 1979). Such individuals consistently repudiate hostile, aggressive, or sexually non-normative impulses, reporting an absence of anger, resentment, or interpersonal friction even under severe external provocation.

The Two-Component Nuance: Attribution vs. Denial

Subsequent psychometric investigations (e.g., Millham, 1974; Ramanaiah et al., 1977; Paulhus, 1984) uncovered that the construct measured by the M-C SDS operates across two functionally distinct sub-dimensions:

• Attribution (Claiming the Positive): Reflected in the 18 True-keyed items, this dimension involves attributing to oneself exceptionally altruistic, culturally celebrated behaviors that are practically impossible to maintain continuously. Examples include asserting that one never hesitates to help someone in trouble, is always courteous to disagreeable people, or never resents being asked a favor.
• Denial (Repudiating the Negative): Reflected in the 15 False-keyed items, this dimension involves vigorously denying common, minor, culturally universal foibles, flaws, and transgressions. Examples include denying that one has ever felt resentful when not getting their way, ever disliked anyone, ever felt like rebelling against authority, or ever engaged in harmless gossip.

Delroy L. Paulhus later situated these patterns within his comprehensive dual-factor framework, noting that while the M-C SDS heavily taps Impression Management (purposeful, conscious self-presentation tailored toward an audience), it also captures elements of Self-Deceptive Enhancement (rigid, unconscious beliefs in one’s personal flawlessness).

6. Theoretical Framework

The theoretical foundation of the Marlowe-Crowne Social Desirability Scale emerged out of a direct critique of Allen L. Edwards’ (1957) pioneering work on social desirability, integrated with Julian B. Rotter’s (1954) Social Learning Theory.

The Edwards Critique: Confounding Desirability and Psychopathology

In 1957, Allen Edwards published his 39-item Social Desirability Scale (Edwards SDS), constructed primarily from items drawn from the Minnesota Multiphasic Personality Inventory (MMPI). Edwards observed an astonishingly high correlation (frequently exceeding r = -.80) between an item’s independently judged social desirability scale value and the probability that an individual would endorse it. However, because Edwards selected items directly from clinical scales measuring depression, paranoia, schizophrenia, and psychasthenia, the resulting scale was hopelessly confounded with genuine mental health and subjective distress. A person endorsing socially desirable items on Edwards’ scale was largely endorsing items that indicated an absence of florid psychiatric symptoms. Consequently, researchers could not discern whether a high score reflected a defensive response distortion or simply superior emotional adjustment, ego-strength, and subjective well-being.

Crowne and Marlowe’s Conceptual Innovation

Recognizing this fatal circularity, Crowne and Marlowe (1960) posited that a valid measure of social desirability must be independent of psychopathology. They established a rigorous criterion for item development based on cultural definitions of propriety versus universal human reality:

To measure social desirability bias untainted by psychiatric symptom status, test items must describe behaviors that are culturally sanctioned, highly approved, and morally commendable, but which have an extremely low base-rate of actual human occurrence; conversely, items must describe behaviors that are culturally disapproved, but which possess an exceptionally high, near-universal base-rate of occurrence among ordinary individuals without psychiatric pathology.

Under this logic, endorsing an item such as “I have never intensely disliked anyone” does not signify psychiatric wellness; rather, it indicates an unrealistic, defensive over-compliance with cultural mandates. By explicitly screening out items referencing somatic complaints, bizarre cognitions, acute affective distress, or psychiatric pathology, Crowne and Marlowe severed the statistical umbilical cord tying social desirability to psychopathology.

Integration with Social Learning Theory

Crowne and Marlowe grounded their interpretation in Rotter’s (1954) social learning framework, which formalizes human behavior as a function of expectancy and reinforcement value:

Behavior Potential = f(Expectancy & Reinforcement Value)

They posited that individuals differ systematically in their generalized expectancy regarding whether social approval or disapproval will follow interpersonal behavior. For high need-for-approval individuals, the subjective reinforcement value of winning social praise and avoiding criticism is extraordinarily high, while the perceived probability of social rejection for displaying ordinary flaws is magnified. Consequently, their behavior across diverse experimental and evaluative environments is consistently oriented toward eliciting approval and averting disapproval through conformity, compliant deference, and virtuous self-depiction.

7. Validity

The construct, convergent, discriminant, and criterion-related validity of the M-C SDS has been thoroughly established through decades of empirical testing across psychometric, experimental, and observational designs.

Discriminant Validity: Independence from Psychopathology

The central hypothesis guiding the scale’s derivation was its empirical independence from psychiatric symptom dimensions. In their original 1960 study, Crowne and Marlowe administered the M-C SDS alongside the MMPI to a validation cohort of 100 college students. While the Edwards SDS demonstrated massive correlations with MMPI clinical scales (e.g., correlating r = -.84 with the Psychasthenia scale and r = -.80 with the Manifest Anxiety Scale), the M-C SDS showed vastly lower, often negligible associations:

• Correlation with Edwards Social Desirability Scale: r = .35 (p < .01), demonstrating that while they share common variance regarding general desirability, they represent radically divergent constructs.
• Correlations with MMPI Clinical Scales: Associations with the Hypochondriasis, Depression, Hysteria, Psychopathic Deviate, Paranoia, Psychasthenia, and Schizophrenia scales hovered in the low-to-moderate range (typically between r = -.15 and -.40), proving that high M-C SDS scores do not merely index freedom from psychiatric pathology.
• MMPI Lie (L) and Defensiveness (K) Scales: Correlated moderately with M-C SDS (r = .54 and .40, respectively), precisely as expected, confirming that the scale captures defensive self-presentation rather than clinical distress.

Construct and Behavioral Criterion Validity

To substantiate that the M-C SDS measures an active, generalized personality disposition rather than a sterile test-taking artifact, Crowne and Marlowe (1964) orchestrated an extensive program of experimental laboratory studies:

• Verbal Conditioning: High M-C SDS scorers conditioned significantly faster and maintained conditioned verbal responses (e.g., plural nouns reinforced with an examiner’s subtle “mm-hmm”) markedly longer than low scorers, reflecting heightened sensitivity to implicit social reinforcement.
• Boring Task Evaluation: In an ingenious adaptation of Festinger’s cognitive dissonance paradigm, participants performed an intentionally dull, repetitive task (packing spools into a tray and turning square pegs). High need-for-approval subjects rated the tedious task as genuinely interesting and enjoyable when an authority figure requested their evaluation, actively suppressing negative impressions to please the experimenter.
• Conformity and Suggestibility: Across perceptual and aesthetic judgment tasks, high scorers demonstrated pronounced conformity to majority group consensus and displayed rapid attitude shifts when presented with persuasive messages attributed to prestigious sources.

Cross-Cultural and Contemporary Validity

Subsequent psychometric investigations across international contexts—including validations in Spanish, German, French, Chinese, Japanese, and Turkish—have established that the scale’s fundamental discriminant and convergent patterns hold globally, though the baseline mean scores vary reflecting cultural differences in collective social conformity versus individualistic autonomy.

8. Reliability

The Marlowe-Crowne Social Desirability Scale demonstrates exemplary reliability coefficients across diverse operationalizations of internal consistency and temporal stability.

Internal Consistency

In the original instrument development study (Crowne & Marlowe, 1960), the 33-item inventory was administered to an initial developmental cohort of 76 undergraduate students, followed by a cross-validation sample of 100 students. The internal consistency computed via the Kuder-Richardson Formula 20 (KR-20)—the standard psychometric method for binary dichotomous items—was:

r_KR-20 = .88

Meta-analytic reviews encompassing hundreds of empirical studies utilizing the full 33-item scale (e.g., Beretvas et al., 2002) have reported mean Cronbach’s alpha (α) and KR-20 values centered around .79 to .83 across non-clinical adult populations, and .74 to .80 across diverse clinical cohorts. These figures indicate high domain-sampling precision and acceptable item homogeneity without exhibiting extreme, redundant item collinearity.

Test-Retest Temporal Stability

To establish that the M-C SDS measures an enduring personality trait rather than transient mood states or fluctuating testing attitudes, Crowne and Marlowe administered the scale to an independent sample of 31 undergraduate students across a one-month (4-week) test-retest interval. The resulting Pearson product-moment stability coefficient was:

r_tt = .89 (p < .001)

Subsequent investigations evaluating long-term stability across intervals of three to six months have documented test-retest coefficients consistently exceeding r = .80, confirming that the underlying need for approval reflects an exceptionally stable behavioral disposition across the adult lifespan.

9. Factor Analysis

Although Crowne and Marlowe initially conceptualized the M-C SDS as a single, unidimensional metric of social approval seeking, decades of exploratory factor analyses (EFA) and confirmatory factor analyses (CFA) have demonstrated that the scale is psychometrically complex, primarily characterized by a robust bifactor or two-factor multidimensional structure.

The Attribution vs. Denial Factor Model

Millham (1974) conducted an influential factor analysis that revolutionized the structural interpretation of the scale. Millham demonstrated that the 33 items consistently split along their keying direction into two distinct, moderately correlated factors (r ≈ .30 to .45):

• Factor 1: Social Desirability Denial (Repudiation of Faults): Dominated by the 15 False-keyed items (e.g., Item 6: resentment; Item 11: gossip; Item 23: smashing things). This factor captures the defensive avoidance of perceived social disapproval through the systematic denial of common human transgressions.
• Factor 2: Social Desirability Attribution (Assertion of Virtues): Dominated by the 18 True-keyed items (e.g., Item 1: investigating candidates; Item 2: always helping; Item 21: always courteous). This factor captures the active pursuit of positive approval through claiming extraordinarily high standards of moral, civil, and interpersonal perfection.

Subsequent structural modeling by Ramanaiah, Schill, and Leung (1977) confirmed that treating Attribution and Denial as separate subscales significantly enhances criterion prediction in specific social evaluative situations compared to using an undifferentiated composite score.

Confirmatory Factor Analytic (CFA) Indices

Modern structural equation modeling (SEM) evaluations comparing single-factor, orthogonal two-factor, correlated two-factor, and bifactor models consistently reveal that a strict unidimensional model fits poorly across conventional structural fit criteria:

• Single-Factor CFA: Typically yields inadequate fit metrics (χ²/df > 3.5, Root Mean Square Error of Approximation [RMSEA] > .075, Comparative Fit Index [CFI] < .80, Tucker-Lewis Index [TLI] < .78).
• Correlated Two-Factor Model (Attribution & Denial): Demonstrates markedly superior fit across independent samples (χ²/df ≈ 1.8 to 2.2, RMSEA ≈ .042 to .051, CFI ≈ .90 to .93, Standardized Root Mean Square Residual [SRMR] ≈ .048).
• Bifactor Model: A general approval-need dimension combined with specific orthogonal Attribution and Denial group factors frequently provides the optimal mathematical representation, validating both the reporting of an overall total score for methodological screening and separate subscale scores for nuanced personality assessment.

10. Instrument / Measurement Tool

• Full Instrument Name: Marlowe-Crowne Social Desirability Scale (M-C SDS)
• Original Authors: Douglas P. Crowne and David Marlowe (1960)
• Construct Assessed: Need for Approval / Social Desirability Response Tendency (decomposed into Attribution of Culturally Approved Virtues and Denial of Culturally Disapproved Behaviors)
• Format / Administration: Paper-and-pencil questionnaire, computerized survey, or structured clinical self-report; individual or group administration
• Number of Items: 33 dichotomous items
• Response Scale: Forced-choice binary format (True / False)
• Scoring Protocol:
  • One point (1) is awarded for each response matching the socially desirable direction.
  • Zero points (0) are assigned when the response diverges from the desirable direction.
  • Items Keyed TRUE (18 items): 1, 2, 4, 7, 8, 13, 16, 17, 18, 20, 21, 24, 25, 26, 27, 29, 31, 33.
  • Items Keyed FALSE (15 items): 3, 5, 6, 9, 10, 11, 12, 14, 15, 19, 22, 23, 28, 30, 32.
  • Total Score Range: 0 to 33 points. Higher cumulative scores indicate an elevated need for social approval and a pronounced tendency toward defensive, socially desirable self-presentation.
• Normative Reference Guidelines (General Adult / Collegiate Samples):
  • Low Social Desirability (Scores 0–8): Highly candid, non-conforming, unconcerned with social evaluation, potentially non-defensive or overly self-critical.
  • Average Social Desirability (Scores 9–19): Balanced self-evaluation; normative adherence to social rules without compulsive defensive distortion.
  • High Social Desirability (Scores 20–33): Marked defensive posturing, high evaluation apprehension, strong conformity motives, potential invalidity of accompanying self-report data due to “faking good.”
• Validated Short-Form Variations:
  • Strahan-Gerbasi Forms (1972): Short Form M-C 20 (20 items), Form X1 (10 items), and Form X2 (10 items), preserving robust correlations (r > .85) with the full 33-item scale.
  • Reynolds Short Forms (1982): Form A (11 items), Form B (12 items), and Form C (13 items). Form C (r = .93 with the full scale; α ≈ .76) is the most widely cited brief alternative in organizational and health psychology.
  • Ballard Short Form (1992): Composite 13-item derivation optimized through item response theory.

11. Permissions & Fee and Test Year

• Year of Initial Publication: 1960.
• Original Copyright & Academic Publication: Published by the American Psychological Association (APA) in the Journal of Consulting Psychology (Crowne & Marlowe, 1960).
• Licensing and Availability: The 33-item Marlowe-Crowne Social Desirability Scale resides within the public domain for non-commercial academic, scientific, and research purposes. In accordance with standard psychometric and fair-use conventions, academic researchers and clinicians may administer, score, and analyze the scale without purchasing proprietary testing materials or paying per-use royalties.
• Commercial and Proprietary Use: Commercial assessment platforms, corporate human resources software, or publisher reprint compilations incorporating the scale must respect American Psychological Association citation guidelines and comply with formal permissions policies where applicable.

12. References

Ballard, R. (1992). Short forms of the Marlowe-Crowne Social Desirability Scale. Psychological Reports, 71(3), 1155–1160. https://doi.org/10.2466/pr0.1992.71.3f.1155

Beretvas, S. N., Meyer, J. L., & Tran, Z. V. (2002). A meta-analytic review of the Marlowe-Crowne Social Desirability Scale and its short forms. Educational and Psychological Measurement, 62(6), 970–989. https://doi.org/10.1177/0013164402238085

Crowne, D. P., & Marlowe, D. (1960). A new scale of social desirability independent of psychopathology. Journal of Consulting Psychology, 24(4), 349–354. https://doi.org/10.1037/h0047358

Crowne, D. P., & Marlowe, D. (1964). The approval motive: Studies in evaluative dependence. John Wiley & Sons.

Edwards, A. L. (1957). The social desirability variable in personality assessment and research. Dryden Press.

Millham, J. (1974). Two components of need for approval: Defense and assertion. Journal of Consulting and Clinical Psychology, 42(3), 378–387. https://doi.org/10.1037/h0036647

Paulhus, D. L. (1984). Two-component models of socially desirable responding. Journal of Personality and Social Psychology, 46(3), 598–609. https://doi.org/10.1037/0022-3514.46.3.598

Ramanaiah, N. V., Schill, T., & Leung, L. S. (1977). A test of the hypothesis about the two-dimensional nature of the Marlowe-Crowne Social Desirability Scale. Journal of Research in Personality, 11(2), 251–259. https://doi.org/10.1016/0092-6566(77)90035-7

Reynolds, W. M. (1982). Development of reliable and valid short forms of the Marlowe-Crowne Social Desirability Scale. Journal of Clinical Psychology, 38(1), 119–125. https://doi.org/10.1037/10788-000

Strahan, R., & Gerbasi, K. C. (1972). Short, homogeneous versions of the Marlow-Crowne Social Desirability Scale. Journal of Clinical Psychology, 28(2), 191–193. https://doi.org/10.1177/1745691610369465

Weinberger, D. A., Schwartz, G. E., & Davidson, R. J. (1979). Low-anxious, high-anxious, and repressive coping styles: Psychophysiological responses and defensive attitudes to stress. Journal of Abnormal Psychology, 88(4), 369–380. https://doi.org/10.1037/0021-843X.88.4.369

13. Items of the Scale