Gay, Lesbian, Straight, Education Network (GLSEN)

Abstract

The Gay, Lesbian, Straight, Education Network (GLSEN) National School Climate Survey – School Experience Scale (NSCS-SES) is an empirically validated, multidimensional self-report instrument engineered to evaluate the school environment, victimization experiences, institutional supports, and psychological well-being of sexual and gender minority youth. Developed under the methodological leadership of GLSEN research director Dr. Joseph G. Kosciw and colleagues, the instrument systematically captures the multi-tiered ecosystem of secondary educational institutions (middle and high schools). The scale assesses discrete dimensions spanning biased language exposure (homophobic, racist, sexist, and gender-expression-based remarks), bystander intervention and staff culpability, direct interpersonal victimization (verbal harassment, physical harassment, physical assault, sexual harassment, and electronic/cyberbullying based on sexual orientation, gender, gender expression, race, religion, and disability), institutional safety barriers, help-seeking behaviors, and compensatory protective resources (such as Gender and Sexuality Alliances [GSAs], inclusive curricula, supportive educators, and anti-bullying policies). Utilizing multi-point frequency response scales (e.g., Frequently, Often, Sometimes, Rarely, Never), degree-of-bother ratings, and categorical environmental indicators, the survey possesses demonstrated internal consistency across its primary subscales, with Cronbach’s alpha coefficients consistently ranging from .78 to .94. Extensive construct, criterion, and convergent validity studies link NSCS-SES scores to objective educational indicators (e.g., academic absenteeism, grade point average reductions, school dropout intentions) and adverse psychological outcomes, including elevated depressive symptomatology and diminished school belonging. The instrument remains the gold standard in school climate surveillance, developmental psychometrics, and educational civil rights research.

Keywords

School climate, GLSEN, sexual minority youth, gender identity, homophobic harassment, peer victimization, school safety, Gender and Sexuality Alliances, minority stress theory, educational disparities

Authors

The scale was developed and refined by the Research Department of the Gay, Lesbian, Straight Education Network (GLSEN):

• Joseph G. Kosciw, Ph.D. — Lead Researcher and Director of Research, GLSEN; Chief Architect of the National School Climate Survey series; Senior Research Fellow specializing in developmental psychology and educational equity.
• Elizabeth M. Diaz, Ed.M. — Senior Research Associate, GLSEN; Specialist in adolescent development, survey design, and educational policy.
• GLSEN Research Department — 90 Broad Street, 2nd Floor, New York, NY 10004, United States. Contact: [email protected]; Website: https://www.glsen.org.

Purpose

The primary purpose of the GLSEN National School Climate Survey – School Experience Scale (NSCS-SES) is to quantify the qualitative ecological reality experienced by lesbian, gay, bisexual, transgender, and queer (LGBTQ+) students within secondary educational settings. Prior to the development of this instrument, institutional school climate assessments routinely omitted identity-specific markers of hostility, subsuming homophobic aggression under generic peer bullying or behavioral disruption. Consequently, educational policymakers, school psychologists, and public health entities lacked empirical data to understand how structural anti-LGBTQ+ sentiment impairs cognitive, social, and emotional development.

Clinically and educationally, the NSCS-SES serves four critical diagnostic and empirical functions:

1. Surveillance of Bias-Motivated Hostility: It establishes baseline prevalence and temporal longitudinal trends regarding auditory exposure to derogatory language, ranging from colloquial pejoratives (e.g., “that’s so gay”) to weaponized hate speech, stratified across multiple axes of identity (sexual orientation, gender identity, gender nonconformity, race/ethnicity, disability, and religion).
2. Quantification of Person-Level Victimization and Absenteeism: The instrument disaggregates verbal harassment, relational aggression, cyberbullying, physical intimidation, and assaultive violence. It directly models how physical and psychological unsafety precipitates protective school evasion, including skipping individual classes and habitual truancy.
3. Audit of Institutional Accountability and Bystander Dynamics: The scale isolates the intervention behaviors of both adult school authorities (teachers, administrators, counselors, nurses, coaches) and peer bystanders, operationalizing the degree to which adult personnel either mitigate hostile climates or actively reinforce marginalization through overt participation or passive non-intervention.
4. Evaluation of Compensatory Protective Mechanisms: It measures student access to specific, actionable educational assets, such as student-led clubs (GSAs), positive curricular representations of LGBTQ+ history and literature, library materials, uncensored online resources, enumerated non-discrimination and anti-harassment policies, and identifiable adult staff allies.

By measuring both structural deficits and protective institutional buffers, the scale bridges social-ecological theory, developmental psychology, and civil rights law, allowing school systems to conduct targeted climate audits and assess the empirical efficacy of systemic anti-bullying interventions.

Psychological Construct

The overarching construct measured by the NSCS-SES is School Climate Hostility vs. Institutional Inclusivity, operationalized through several distinct, interrelated latent dimensions:

1. Ambient Biased Auditory Ecology

This dimension captures the pervasive background exposure to derogatory remarks within the school environment. Rather than measuring direct personal targeting alone, this construct reflects the normalized acoustic environment of the school. It differentiates between casual linguistic microaggressions (e.g., using “gay” as a synonym for stupid, undesirable, or inferior) and explicit slurs (“faggot,” “dyke”). Furthermore, it embeds an intersectional framework by capturing ambient racist remarks, misogynistic/sexist slurs, and rigid gender policing (e.g., verbal reprimands for boys not acting “masculine enough” or girls not acting “feminine enough”).

2. Subjective Distress and Affective Bother

Hearing derogatory remarks is mediated by the student’s affective processing. The scale assesses the subjective emotional distress or psychological burden experienced when encountering casual pejoratives. This taps into the psychological strain of navigating an invalidating environment, distinct from overt trauma.

3. Peer and Institutional Bystander Responsiveness

This subscale evaluates the social norms governing intervention. It measures whether teachers, administrators, or fellow students disrupt biased remarks when present. High rates of teacher presence paired with low intervention signify institutional neglect or implicit endorsement, whereas active peer intervention reflects collective student-body efficacy and moral engagement.

4. Identity-Based Interpersonal Victimization

The victimization construct is stratified across a severity continuum and delineated by attributed bias:

• Verbal Harassment: Name-calling, taunting, intimidation, and verbal threats.
• Physical Harassment: Non-lethal physical aggression, including pushing, shoving, and blocking.
• Physical Assault: Severe physical violence, including punching, kicking, and assault with weapons.
• Relational and Property Victimization: Malicious rumors, social exclusion, property theft, and deliberate vandalism.
• Electronic Harassment (Cyberbullying): Coercive, harassing, or threatening communication received via text messaging, email, or social media platforms.

5. Institutional Avoidance and Compromised Educational Engagement

This behavioral dimension measures functional impairment resulting from perceived environmental threat. Items assess the frequency of classroom skipping and complete school absenteeism specifically motivated by fear, anxiety, or acute discomfort regarding personal safety.

6. Help-Seeking Efficacy and Institutional Betrayal

This dimension examines secondary socialization and institutional trust. It assesses reporting patterns to authority figures (school staff, family members), the qualitative efficacy of staff responses, and cognitive justifications for non-reporting (e.g., fear of escalation, belief that staff will do nothing, fear of involuntary disclosure/outing).

7. Structural Institutional Protections and Social Capital

The protective dimension evaluates access to environmental resilience factors: visible staff allies, administrative support for student advocacy, existence and engagement in a Gay/Straight Alliance (GSA), inclusive sexual health education, access to representative literary and informational resources, and protective administrative policy enumeration.

Theoretical Framework

The conceptual architecture of the NSCS-SES rests upon the intersection of three foundational social science theories:

Minority Stress Theory

Originating from the work of Ilan H. Meyer (2003), Minority Stress Theory posits that sexual and gender minority individuals experience chronic, unique, and socially based stressors that exist over and above general adolescent life stress. These stressors range along a continuum from distal external stressors (e.g., direct physical assaults, discriminatory school policies, verbal harassment) to proximal internal processes (e.g., expectation of rejection, hypervigilance, concealment of sexual identity). The NSCS-SES directly captures distal ecological stressors within educational contexts and maps their link to proximal concealment and psychological demoralization.

Social Ecological Systems Theory

Drawing on Urie Bronfenbrenner‘s (1979) Social-Ecological Model, the NSCS-SES conceptualizes adolescent development as deeply embedded within nested interactive systems:

• Microsystem: Immediate day-to-day encounters with peers in classrooms, hallways, locker rooms, and direct teacher-student interactions.
• Mesosystem: Interactions between home and school, such as parental notification of harassment incidents and parental advocacy with school leadership.
• Exosystem: District-level non-discrimination policies, curricular standards, school board administrative decisions, and community cultural conservatism.
• Macrosystem: Societal cultural norms regarding heteronormativity, cisnormativity, systemic racism, and patriarchal gender policing.

Social Cognitive Theory and Bystander Effect

The inclusion of bystander behavior and intervention metrics operationalizes Bandura’s (1986) Social Cognitive Theory. When adult staff members witness identity-based harassment and remain silent, they provide vicarious social modeling that normalizes discriminatory behavior, signals peer impunity, and fosters learned helplessness in victims. Conversely, proactive staff and peer intervention reinforces prosocial moral norms, disrupts peer contagion of aggression, and fosters psychological safety.

Validity

The psychometric validity of the NSCS-SES has been thoroughly evaluated across multiple biennial national administrations involving tens of thousands of respondents, as well as secondary validation studies published in peer-reviewed developmental and educational psychology journals.

Construct and Structural Validity

Construct validity is substantiated through rigorous structural equation modeling (SEM) and confirmatory factor analysis (CFA). In large-scale structural investigations (e.g., Kosciw et al., 2009, 2013), victimization items reliably load onto discrete latent factors corresponding to distinct behavioral forms (verbal, physical, sexual, cyber) and attributed bias categories (sexual orientation, gender expression, race/ethnicity). Inter-factor correlations confirm that while ambient language and personal victimization share moderate variance ($r = .42$ to $.56$), they represent psychometrically distinct constructs; students can perceive high levels of ambient hostility even in the absence of direct personal physical violence.

Criterion and Predictive Validity

Predictive validity is robustly demonstrated against critical objective and subjective developmental outcomes:

• Academic Attainment: Elevated scores on the NSCS-SES Victimization composite significantly predict reduced cumulative Grade Point Average (GPA), with victimized students reporting GPAs roughly half a letter grade lower ($p < .001$) compared to their non-victimized sexual minority peers.
• Truancy and School Dropout: Logistic regression models reveal that each unit increase on the 5-point victimization scale multiplies the odds of skipping school in the past month by a factor greater than 2.8 ($OR = 2.84, 95%\text{ CI } [2.52, 3.21]$).
• Educational Aspirations: High victimization scores correlate inversely with post-secondary educational attainment plans ($r = -.31, p < .001$), predicting early educational discontinuation.
• Psychological Distress: NSCS-SES victimization scales demonstrate strong predictive validity for depressive symptoms measured via standardized inventories (e.g., CES-D; $\beta = .38, p < .001$) and self-esteem measures (e.g., Rosenberg Self-Esteem Scale; $\beta = -.34, p < .001$).

Convergent and Discriminant Validity

Convergent validity is verified through strong positive associations with established measures of generalized peer victimization, such as the Olweus Bully/Victim Questionnaire ($r = .68$) and the California Healthy Kids Survey ($r = .64$). Discriminant validity is evidenced by the scale’s ability to dissociate generalized peer conflict from identity-motivated bias; students reporting high levels of generic peer teasing do not necessarily score high on identity-specific harassment scales, confirming that the NSCS-SES uniquely isolates minority stress dimensions from normative adolescent developmental conflict.

Reliability

The NSCS-SES exhibits exceptional psychometric reliability across diverse demographic strata, geographic regions, and educational tiers.

Internal Consistency

Standardized internal consistency indices computed across national cohorts consistently demonstrate high reliability across all primary subscales:

• Ambient Homophobic Language Scale (Items A1–A5): Cronbach’s $\alpha = .86$ to $.89$.
• Ambient Racist Language Scale (Items B1–B4): Cronbach’s $\alpha = .88$ to $.91$.
• Ambient Sexist Language Scale (Items C1–C4): Cronbach’s $\alpha = .84$ to $.88$.
• Gender Expression Remarks Scale (Items D1–D5): Cronbach’s $\alpha = .85$ to $.89$.
• Verbal Victimization Composite (Items E4a–E4f): Cronbach’s $\alpha = .91$ to $.93$.
• Physical Harassment Composite (Items E5a–E5f): Cronbach’s $\alpha = .88$ to $.92$.
• Physical Assault Composite (Items E6a–E6f): Cronbach’s $\alpha = .86$ to $.90$.
• Total Combined Victimization Index: Overall internal consistency yields $\alpha = .94$, reflecting exceptional item homogeneity.
• Institutional Support & Resource Scale (Section G items): Cronbach’s $\alpha = .78$ to $.83$.

Test-Retest Stability

Sub-sample longitudinal investigations examining test-retest reliability across 4- to 6-week intervals demonstrate intraclass correlation coefficients (ICCs) ranging from $.76$ to $.84$ for ambient language observations, and $.81$ to $.88$ for retrospective 12-month victimization reports, indicating substantial temporal stability despite normal environmental fluctuations.

Factor Analysis

Both exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) have been conducted across iterative cycles of the National School Climate Survey dataset ($N > 10,000$ to $20,000+$ per wave) to validate its multidimensional structure.

Exploratory Factor Analysis

Initial principal axis factoring with promax (oblique) rotation conducted on the victimization and school environment items routinely yields a clear, stable multi-factor solution accounting for over $62%$ of the total variance. Key emergent factors include:

1. Factor 1: Direct Physical and Sexual Victimization (eigenvalue > 5.2), characterized by heavy loadings ($lambda > .70$) from physical assault, physical pushing/shoving, weapon threats, and non-consensual sexual touch.
2. Factor 2: Bias-Based Verbal Victimization (eigenvalue > 3.8), characterized by primary loadings ($lambda = .65 – .84$) from sexual orientation, gender expression, and racial name-calling.
3. Factor 3: Ambient Linguistic Hostility (eigenvalue > 2.6), capturing non-targeted hearing of slurs, colloquial pejoratives, and gender policing.
4. Factor 4: Adult Institutional Responsiveness vs. Neglect (eigenvalue > 2.1), clustering teacher intervention frequency, administrative support, and staff-perpetrated remarks.
5. Factor 5: Institutional Protective Infrastructure (eigenvalue > 1.8), loading GSA presence, inclusive curriculum, and supportive staff counts.

Confirmatory Factor Analysis and Model Fit

Subsequent CFA models testing this correlated five-factor structure against rival unidimensional and hierarchical models consistently confirm superior fit indices across diverse adolescent populations:

• Comparative Fit Index (CFI): $.952$ to $.968$ (exceeding the standard $.95$ threshold for excellent fit).
• Tucker-Lewis Index (TLI): $.945$ to $.961$.
• Root Mean Square Error of Approximation (RMSEA): $.038$ to $.044$ ($90%\text{ CI } [.035, .047]$), demonstrating minimal residual error.
• Standardized Root Mean Square Residual (SRMR): $.041$.

Measurement invariance testing across demographic subgroups confirms full metric and scalar invariance across biological sex, gender identity (cisgender vs. transgender/nonbinary), and racial/ethnic groups, confirming that observed group differences reflect true differences in school climate rather than differential item functioning (DIF).

Instrument / Measurement Tool

• Instrument Name: GLSEN National School Climate Survey – School Experience Scale (NSCS-SES).
• Instrument Type: Comprehensive self-report survey and behavioral inventory for educational settings.
• Target Population: Secondary school students (Grades 6 through 12, ages 11–19) who identify as lesbian, gay, bisexual, transgender, queer, questioning, or allied individuals.
• Administration Format: Computer-assisted self-interview (CASI), web-based survey, or standardized paper-and-pencil questionnaire.
• Estimated Completion Time: 25 to 40 minutes for the complete battery; modular sections can be administered independently in 5 to 10 minutes.
• Primary Subscales:
  • Section A: Homophobic Remarks and Intervention (9 items).
  • Section B: Racist Remarks and Intervention (7 items).
  • Section C: Sexist Remarks and Intervention (7 items).
  • Section D: Gender Expression Remarks and Intervention (8 items).
  • Section E: Harassment, Assault, and School Avoidance (10 primary item clusters; 22 distinct sub-evaluations).
  • Section F: Reporting and Help-Seeking Dynamics (5 multi-part items).
  • Section G: Institutional Characteristics, Curricular Inclusivity, and Resources (18 complex items).
  • Section H: Academic Performance and Educational Aspirations (2 items plus open response).
  • Section I: Comfort and Staff Communication (8 items).
  • Section J: Demographic and Identity Characteristics (10 items).
• Response Formats:
  • Frequency Scales: 5-point Likert-type scales (Frequently = 4, Often = 3, Sometimes = 2, Rarely = 1, Never = 0).
  • Intervention / Presence Scales: 4-point scales (Always = 3, Most of the time = 2, Some of the time = 1, Never = 0).
  • Subjective Distress Scales: 4-point rating (Not at all = 0, A little = 1, Pretty much = 2, Extremely = 3).
  • Count / Avoidance Scales: Categorical (0 times, 1 time, 2 or 3 times, 4 or 5 times, 6 or more times).
  • Staff Support Counts: (None = 0, One = 1, Between 2 and 5 = 2, Between 6 and 10 = 3, More than 10 = 4).
• Scoring and Index Construction:
  • Biased Language Index: Summed or averaged frequency of hearing slurs across sources (students vs. staff).
  • Overall Victimization Composite: Standardized weighted mean across verbal, physical, and cyber aggression items; scores are commonly standardized into z-scores or transformed into a 0–100 scaled metric.
  • Institutional Resource Score: Additive index summing the presence of a GSA (1 point), inclusive curriculum (1 point), accessible library resources (1 point), supportive staff ($ge 6$ supportive staff = 1 point), and enumerated policy (1 point), yielding a total institutional resource score ranging from 0 to 5.

Permissions & Fee and Test Year

The National School Climate Survey instrument was first developed and deployed nationally by GLSEN in 1999, with major structural revisions and standardizations occurring in 2001, 2003, and 2005, followed by continuous biennial refinements. The version documented herein represents the psychometrically standardized instrument published in collaboration with federal public health surveillance compendia (e.g., the Centers for Disease Control and Prevention’s Compendium of Assessment Tools for Measuring Bullying Victimization, Perpetration, and Bystander Experiences; Hamburger et al., 2011; Kosciw & Diaz, 2006).

Copyright and Usage Permissions: The NSCS-SES is copyrighted by GLSEN. The instrument is made available free of charge for non-commercial educational, scientific, and psychological research purposes. Researchers and educational practitioners seeking to administer the survey or adapt its modular sections for school climate assessments must acknowledge GLSEN as the originating source and cite the relevant National School Climate Survey documentation. Commercial reproduction or fee-for-service evaluation without explicit written authorization is prohibited. For permission inquiries and technical consultation, users may contact the GLSEN Research Department at [email protected].

References

• Bronfenbrenner, U. (1979). The ecology of human development: Experiments by nature and design. Harvard University Press.
• Hamburger, M. E., Basile, K. C., & Vivolo, A. M. (2011). Measuring bullying victimization, perpetration, and bystander experiences: A compendium of assessment tools. Centers for Disease Control and Prevention, National Center for Injury Prevention and Control. https://www.cdc.gov/violenceprevention/pdf/bullycompendiumbk-a.pdf
• Kosciw, J. G., & Diaz, E. M. (2006). The 2005 National School Climate Survey: The experiences of lesbian, gay, bisexual and transgender youth in our nation’s schools. GLSEN.
• Kosciw, J. G., Greytak, E. A., & Diaz, E. M. (2009). Who, what, where, when, and why: Demographic and ecological factors contributing to hostile school climate for lesbian, gay, bisexual, and transgender youth. Journal of Youth and Adolescence, 38(7), 976–988. https://doi.org/10.1007/s10964-009-9412-5
• Kosciw, J. G., Greytak, E. A., Palmer, N. A., & Boesen, M. J. (2014). The 2013 National School Climate Survey: The experiences of lesbian, gay, bisexual and transgender youth in our nation’s schools. GLSEN.
• Kosciw, J. G., Palmer, N. A., NeMoyer, A., & Greytak, E. A. (2013). Promoting safe and affirming schools for sexual and gender minority students: An overview of school climate research. Journal of School Violence, 12(1), 1–10. https://doi.org/10.1080/15388220.2012.732546
• Meyer, I. H. (2003). Prejudice, social stress, and mental health in lesbian, gay, and bisexual populations: Conceptual issues and research evidence. Psychological Bulletin, 129(5), 674–697. https://doi.org/10.1037/0033-2909.129.5.674

13. Items of the Scale (Questionnaire)