Sexual Self-Disclosure Scale

Abstract

The Sexual Self-Disclosure Scale (SSDS) is an established psychometric instrument developed by Joseph A. Catania and colleagues to assess the perceived threat, psychological difficulty, and situational willingness associated with disclosing personal sexual information across diverse interpersonal, clinical, and research settings. Originally constructed during an era marked by the emerging HIV/AIDS epidemic and increasing demand for rigorous epidemiological methodology, the SSDS quantifies the psychological barriers that impede authentic reporting of sensitive sexual behaviors, attitudes, and dysfunctions. The instrument exists as a comprehensive 19-item full-length questionnaire and an abbreviated 7-item short form designed for large-scale epidemiological and telephone interview administration. Items require respondents to project themselves into hypothetically varied disclosure contexts—ranging from anonymous self-administered questionnaires to interactions with health care providers, romantic partners, close friends, strangers, and parents—and rate their perceived difficulty on a 6-point Likert-type scale (ranging from 1 = extremely easy to 6 = extremely difficult). Psychometric evaluations demonstrate exceptional internal consistency reliability (full scale Cronbach’s α = .93; short form α = .80–.83) and high temporal stability over time (test-retest reliability r = .92). Construct and convergent validity are evidenced by a robust inverse correlation with Chelune’s General Self-Disclosure Scale (r = −.51, p < .0001), while known-groups discriminant validity reveals significant differences in disclosure threat between human sexuality students and introductory psychology students, as well as between research volunteers and nonvolunteers. The SSDS remains a foundational measurement tool in sexology, clinical psychology, survey methodology, and public health surveillance.

Keywords

Sexual Self-Disclosure Scale, SSDS, sexual communication, self-disclosure, survey response bias, psychological threat, measurement error, psychometrics, sensitive questions, Joseph A. Catania

Authors

The Sexual Self-Disclosure Scale was conceptualized, constructed, and psychometrically validated by Joseph A. Catania, Ph.D., at the Department of Medicine and the Center for AIDS Prevention Studies (CAPS), University of California, San Francisco (UCSF), in collaboration with L. J. McDermott and Lance M. Pollack, Ph.D.

• Primary Investigator: Joseph A. Catania, Ph.D.
• Institutional Affiliation: University of California, San Francisco (UCSF), Department of Medicine, Center for AIDS Prevention Studies (CAPS), San Francisco, California, United States.
• Key Collaborators: Lance M. Pollack, Ph.D. (Senior Methodologist and Statistician, CAPS/UCSF) and L. J. McDermott.
• Historical Context & Support: Research was supported by grants from the National Institute of Mental Health (NIMH) and the National Institute of Child Health and Human Development (NICHD) focused on sexual risk behavior, epidemiological survey methodology, and respondent privacy.

Purpose

The primary purpose of the Sexual Self-Disclosure Scale is to measure the magnitude of psychological threat, anxiety, and reticence evoked by inquiries regarding personal sexuality across multiple social, medical, and environmental contexts. Historically, sexological and behavioral medicine research has grappled with the pervasive confounding effects of social desirability bias, participant nonresponse, selective reporting, and systematic sample attrition. Prior to the development of the SSDS, empirical researchers lacked a standardized, objective scale capable of determining how situational variables (e.g., interviewer gender, interviewer age, setting anonymity, degree of intimacy with the recipient) affect an individual’s threshold for disclosing sensitive sexual data.

In clinical practice, the SSDS serves as an informative diagnostic tool to evaluate client communication barriers within sex therapy, couple counseling, and primary health care consultations. Patients presenting with sexual dysfunctions (e.g., erectile dysfunction, dyspareunia, hypoactive sexual desire) frequently experience profound shame and inhibition, which prevent them from articulating their symptoms to physicians or partners. Administering the SSDS allows clinicians to identify the specific relational domains—such as fear of parental judgment, discomfort with opposite-gender medical providers, or difficulty confronting intimate partners—where the client experiences the highest perceived threat, thereby providing tailored intervention targets for desensitization and assertive communication training.

From an epidemiological and survey design perspective, the SSDS provides methodological control over response bias and mode effects. By quantifying individual differences in perceived threat, researchers can statistically model nonresponse bias, adjust for systematic underreporting of high-risk sexual practices (such as unprotected intercourse, substance use during sexual encounters, or multiple concurrent partnerships), and identify which survey administration modalities (e.g., computer-assisted self-interviewing [CASI] versus face-to-face clinical interviews) minimize psychological threat across demographic groups. Furthermore, the scale enables researchers to assess volunteer bias, confirming whether individuals who self-select into sexual health studies hold significantly lower disclosure thresholds than the general population.

Psychological Construct

The core construct captured by the Sexual Self-Disclosure Scale is perceived threat in sexual communication. Self-disclosure is fundamentally defined in social psychology as the verbal transmission of private, personally relevant information, feelings, desires, and behaviors from one person to another. However, sexual self-disclosure differs qualitatively from generalized self-disclosure due to the strong cultural taboos, moral connotations, vulnerabilities to stigmatization, and intense fears of interpersonal rejection that surround human sexuality.

The SSDS operationalizes perceived threat along a continuous spectrum ranging from extreme ease to extreme difficulty. This construct is structured across several situational dimensions:

• Target Recipient Characteristics (Interpersonal Relational Intimacy): The psychological cost of disclosure varies markedly depending on who is receiving the sexual information. Disclosing to an intimate partner involves concerns regarding emotional safety, relationship preservation, and fear of negative evaluation, whereas disclosing to a friend engages dynamics of peer acceptance and privacy preservation. Disclosing to parents often activates internalized developmental taboos, guilt, and fear of moral disapproval.
• Professional and Institutional Relationships: In clinical settings, disclosing sexual difficulties to a physician or sex therapist requires navigating professional power imbalances, expectations of technical competence, and anxieties regarding bodily exposure. The SSDS explicitly isolates provider characteristics—specifically age (young vs. older) and gender (male vs. female)—capturing how gender alignment and age authority affect patient communicative comfort.
• Research Setting and Modality Privacies: The scale measures threat as a function of the data collection medium, distinguishing between solitary, anonymous self-administration in the home versus exposure in public or semi-private settings (such as group testing rooms or medical clinic waiting areas).
• Audience Familiarity and Size (Group Dynamics): The construct evaluates the escalation of disclosure threat when an individual is asked to discuss their personal sexual history within small groups of brief acquaintances, differentiating between mixed-gender groups and single-gender groups.

Across these dimensions, high scores on the SSDS reflect acute psychological resistance, high vulnerability to evaluation apprehension, and elevated defensive inhibition. Low scores reflect psychological comfort, openness, and minimal affective threat when engaging in explicit sexual discourse.

Theoretical Framework

The theoretical architecture of the Sexual Self-Disclosure Scale integrates concepts from Social Penetration Theory, Communication Privacy Management (CPM) Theory, and the Cognitive Appraisal Model of Stress and Coping.

Social Penetration Theory, formulated by Irwin Altman and Dalmas Taylor (1973), posits that interpersonal relationship development proceeds systematically from superficial layers of interaction to progressively deeper, intimate layers through mutual, reciprocal self-disclosure. Sexual information resides within the deepest core of the personal sphere. Disclosing content from this core level represents an act of vulnerability that involves significant psychological risk. Catania utilized this theoretical premise to conceptualize sexual disclosure not as a static personality trait, but as a dynamic behavioral negotiation regulated by the perceived safety of the interpersonal context and the social distance of the recipient.

Similarly, Sandra Petronio’s Communication Privacy Management Theory provides an explanatory framework for the boundary coordination processes measured by the SSDS. CPM theory argues that individuals maintain subjective boundaries around their private information based on perceived ownership, boundary permeability, and risk-benefit analyses. When individuals are requested to reveal sexual information—whether by an interviewer, a partner, or a health care provider—they must coordinate their privacy boundaries. If the perceived risks (such as moral judgment, breaches of confidentiality, embarrassment, or social rejection) outweigh the anticipated benefits (such as medical diagnosis, symptom relief, research incentives, or emotional intimacy), the privacy boundary thickens, generating high perceived threat and behavioral reticence.

Finally, the scale draws upon Richard Lazarus and Susan Folkman’s (1984) cognitive appraisal model. In this framework, an inquiry regarding sexual behavior triggers a cognitive appraisal process: the respondent evaluates the potential for harm or loss (threat appraisal) relative to their perceived coping resources (such as perceived anonymity, mutual trust, or institutional legitimacy). The SSDS measures the immediate affective and cognitive output of this threat appraisal across differing environmental contingencies.

Validity

Empirical validation of the Sexual Self-Disclosure Scale has established strong evidence for construct, convergent, and discriminant validity across collegiate, clinical, and national probability samples.

Convergent Validity

In the seminal validation study by Catania, McDermott, and Pollack (1986), convergent validity was demonstrated through bivariate correlation with Gordon Chelune’s (1976) Self-Disclosure Situations Survey (SDSS). Among a sample of 193 university students (66 males, 127 females; mean age = 24.6 years), the SSDS demonstrated a significant negative correlation with the Chelune scale, r(72) = −.51, p < .0001. Because higher scores on the Chelune scale reflect a greater willingness to disclose, whereas higher scores on the SSDS reflect greater perceived threat and difficulty, this substantial negative correlation confirms that the SSDS accurately measures the inhibitory counterpart of general self-disclosure tendencies. To prevent artificial inflation of the correlation, the single sexuality-related item on the Chelune survey was removed prior to analysis.

Discriminant and Known-Groups Validity

Discriminant validity was established through known-groups comparisons. Catania and colleagues hypothesized that students enrolling in an elective university course on human sexuality would display lower disclosure threat than students enrolled in general introductory psychology, attributable to the self-selection of more sexually comfortable individuals into specialized sexology courses. This hypothesis was empirically supported: students in the human sexuality course reported significantly lower SSDS scores (M = 54.6, SD = 17.1) than their introductory psychology counterparts (M = 60.7, SD = 16.2), t(172) = 1.66, p < .05. Importantly, the two groups did not differ significantly on demographic or experiential confounding variables, including age (t = 1.14, p > .10), number of sex books read (t = 0.30, p > .10), total lifetime sexual partners (t = 0.09, p > .10), virginity status (χ² = .01, p > .10), or gender composition (χ² = .01, p > .10).

Furthermore, behavioral correlates supported the scale’s discriminant sensitivity: the number of sexuality-related books read by participants demonstrated a significant negative correlation with perceived threat (r(86) = −.24, p < .03), and lifetime number of sexual partners likewise correlated inversely with threat (r(86) = −.23, p < .05).

Volunteer Bias and Methodological Sensitivity

The SSDS proved uniquely sensitive to volunteer bias in sex research. Participants who actively volunteered for face-to-face sexual interviews exhibited dramatically lower SSDS threat scores compared to nonvolunteers, t(191) = 7.22, p < .0001. Methodological checks confirmed that scale administration did not induce artificial sensitization or item nonresponse: partial response rates (participants omitting one or more items) did not differ between participants who received the SSDS at baseline versus those who did not (χ²(1, N = 193) = .06, p > .10). Furthermore, counterbalanced order-of-presentation tests revealed no significant carryover effects on subsequent sexual behavior inventory scores (all t < 1.49, p > .14).

Reliability

The Sexual Self-Disclosure Scale exhibits high internal consistency and temporal stability across diverse populations and administration formats.

Internal Consistency

In the original college sample (N = 193), the 19-item full SSDS demonstrated an internal consistency reliability coefficient (Cronbach’s α) of .93. This high coefficient indicates strong inter-item covariance and homogeneity across the situational disclosure items.

In a large-scale nationwide methodological survey conducted in 1995 utilizing random-digit dialing (RDD) across the contiguous United States (N = 2,018), the 7-item abbreviated form demonstrated a Cronbach’s α of .80 across the entire national probability sample. Reliability remained stable across sub-demographic strata:

• Male National Sample (n = 953): Cronbach’s α = .82 (M = 21.82, SD = 4.24)
• Female National Sample (n = 1,065): Cronbach’s α = .81 (M = 21.54, SD = 4.17)
• Education < 12 Years (n = 144): Cronbach’s α = .83 (M = 21.35, SD = 4.62)
• Education = 12 Years / High-Risk Urban Stratum (n = 642): Cronbach’s α = .81 (M = 21.65, SD = 4.34)
• Education > 12 Years (n = 1,215): Cronbach’s α = .80 (M = 21.80, SD = 3.96)

Test-Retest Stability

Temporal stability of the 19-item instrument was evaluated over a multi-week retest interval among university participants. The resulting Pearson correlation coefficient was r = .92, indicating that individual differences in sexual self-disclosure threat reflect a stable dispositional-situational response pattern over time.

Factor Analysis

While the SSDS is frequently scored as a unidimensional composite index of perceived sexual disclosure threat, structural exploratory (EFA) and confirmatory (CFA) investigations reveal an underlying multidimensional structure governed by situational target domains.

Principal components factor analyses with orthogonal (Varimax) and oblique rotations reveal three to four primary latent dimensions accounting for the majority of common variance:

1. Professional / Medical Disclosure Factor: Defined by high item loadings (> .65) on questions involving personal physicians, medical specialists, and professional interviewers. Variance in this factor is moderated by provider age and gender pairings, reflecting clinical boundary anxieties and authoritative evaluation fears.
2. Intimate and Familial Disclosure Factor: Characterized by high loadings on items assessing disclosure to romantic partners/spouses, close friends, and parents. Items assessing discussions with the mother and father demonstrate moderate-to-high cross-loadings with parental taboo facets.
3. Public / Anonymous Research Contexts Factor: Encompasses items measuring comfort with filling out anonymous surveys at home versus in large public gatherings, clinics, or small groups of acquaintances.

In telephone-administered shortened forms, a parsimonious single-factor model exhibits adequate fit indices (CFI > .94, RMSEA < .06), demonstrating that a generalized construct of sexual disclosure reticence can be reliably extracted when survey administration time is constrained.

Instrument / Measurement Tool

• Instrument Name: Sexual Self-Disclosure Scale (SSDS)
• Alternate Versions: 19-item Full Form; 7-item Short Form; English and Spanish language editions; Self-Administered Questionnaire (SAQ) and Computer-Assisted Telephone Interview (CATI) modalities.
• Author: Joseph A. Catania, Ph.D.
• Construct Measured: Perceived threat and psychological difficulty in communicating personal sexual information across varied interpersonal and environmental contexts.
• Item Count: 19 items (standard version); 7 items (abbreviated epidemiological version).
• Response Format (Full Form): 6-point Likert-type scale:
  • 1 = Extremely easy
  • 2 = Moderately easy
  • 3 = Somewhat easy
  • 4 = Somewhat difficult
  • 5 = Moderately difficult
  • 6 = Extremely difficult
• Response Format (Short Form): 4-point categorical verbal scale (Very easy, Kind of easy, Kind of hard, Very hard) alongside nonresponse options (Declined to answer, Don’t know).
• Administration Time: Approximately 3 to 5 minutes for the full 19-item version; under 2 minutes for the 7-item short form.
• Scoring Protocol: All items are scored positively in the direction of difficulty (1 to 6). Individual item ratings are summed across all completed items to generate a total composite score. For the 19-item full scale, potential raw scores range from 19 to 114. Lower aggregate scores indicate lower perceived threat and greater communicative ease; higher scores indicate greater perceived threat, anxiety, and communicative inhibition.

Permissions & Fee and Test Year

• Initial Publication Year: 1986 (Original validation published in The Journal of Sex Research); expanded national epidemiological standardization completed in 1995.
• Copyright & Intellectual Property: Joseph A. Catania. Academic rights are traditionally governed under standard scientific publishing fair-use doctrines for non-commercial research and educational applications.
• Commercial Fees: The scale is an open-access psychometric instrument for academic, non-commercial research, and clinical diagnostic purposes. No licensing fees are required for standard educational use.
• Licensing and Acquisition: Inquiries regarding specialized translations (e.g., validated Spanish versions), authorization for high-volume commercial trial integration, or telephone CATI algorithms should be directed to Dr. Joseph A. Catania or the Center for AIDS Prevention Studies (CAPS) at the University of California, San Francisco.

References

• Altman, I., & Taylor, D. A. (1973). Social penetration: The development of interpersonal relationships. Holt, Rinehart & Winston.
• Catania, J. A., McDermott, L. J., & Pollack, L. M. (1986). Questionnaire response bias and face-to-face interview sample bias in sexuality research. The Journal of Sex Research, 22(1), 52–72. https://doi.org/10.1080/00224498609551290
• Chelune, G. J. (1976). Self-disclosure situations survey: A new approach to measuring self-disclosure. Journal Supplement Abstract Service: Catalog of Selected Documents in Psychology, 6, 111–112. (Ms. No. 1367).
• Lazarus, R. S., & Folkman, S. (1984). Stress, appraisal, and coping. Springer Publishing Company.
• Petronio, S. (2002). Boundaries of privacy: Dialectics of disclosure. State University of New York Press.
• Tourangeau, R., & Yan, T. (2007). Sensitive questions in surveys. Psychological Bulletin, 133(5), 859–883. https://doi.org/10.1037/0033-2909.133.5.859

13. Items of the Scale (Questionnaire)