Our Scientific Methodology & Framework

The Sexual Repression Index assessment system is built upon rigorous psychological research and classic scales.

Theoretical Foundation

Dual Control Model

The Dual Control Model of Sexual Response, proposed by Janssen et al. (2002), posits that human sexual response is regulated by both a Sexual Excitation System (SES) and a Sexual Inhibition System (SIS). This model provides a crucial theoretical framework for understanding individual differences in sexual behavior.

Internationally Recognized Theory

Concept of Sexual Repression

Sexual repression refers to the systematic inhibition of sexual impulses, desires, and behaviors, often stemming from a combination of psychological, socio-cultural, and moral factors. Modern psychological research indicates that moderate sexual inhibition is normal, but excessive repression can impact mental well-being.

Evidence-Based Support
Scale Composition

SIS/SES-SF

Sexual Inhibition/Excitation Scales-Short Form

14 items

Measures the sensitivity of the sexual inhibition and excitation systems, including inhibition related to performance anxiety (SIS1) and threat/fear (SIS2).

Author:Janssen et al. (2002)Reliability:α = 0.84-0.91

Mosher Guilt Inventory

Mosher Sexual Guilt Scale

10 items

Assesses the degree of guilt an individual feels about sexual behaviors and thoughts, reflecting a core feature of moralistic sexual repression.

Author:Mosher (1988)Reliability:α = 0.88-0.93

KISS-9 Sexual Shame Scale

Kyle Inventory of Sexual Shame

9 items

Measures an individual's experience of shame regarding their sexual identity, thoughts, and behaviors, capturing deeper issues of sexual self-concept.

Author:Kyle et al. (2013)Reliability:α = 0.92-0.95

SOS Sexual Opinion Survey

Sexual Opinion Survey

5-item screening

Assesses an individual's emotional orientation towards sexual stimuli and related content, measuring sexual liberalism versus conservatism.

Author:Fisher et al. (1988)Reliability:α = 0.82-0.89
SRI Calculation Method

Four-Dimension Standardization

1. Reversed Sexual Opinion: SOS scores are inverted; higher scores indicate negative reactions to sexual stimuli.
2. Sexual Guilt: Raw scores from the Mosher inventory, reflecting moralistic sexual repression.
3. Sexual Shame: KISS-9 scores, measuring shame related to sexual identity.
4. Inhibition Dominance: The difference (SIS1+SIS2-SES), reflecting the dominance of inhibition over excitation.

Z-Score Standardization

Utilizes z-score standardization based on population norms to convert scores from each dimension to a standard normal distribution, ensuring comparability and statistical significance.

SRI Composite Calculation

The z-scores of the four dimensions are combined with equal weighting, then transformed into a percentile rank (0-100) using the standard normal CDF to provide an intuitive index.

Reliability and Validity

Reliability Metrics

Internal Consistency
α > 0.80
Test-Retest Reliability
r > 0.75
Split-Half Reliability
r > 0.78

Validity Evidence

Construct Validity
CFI > 0.90
Convergent Validity
AVE > 0.50
Discriminant Validity
√AVE > r
Research Applications

Psychosexual Research

For empirical studies on sexual attitudes, behaviors, and psychological health.

500+ Studies

Clinical Assessment

To assist in the clinical evaluation of sexual dysfunctions and psychosexual issues.

200+ Studies

Cross-Cultural Comparison

For comparative studies on sexual concepts and behavioral patterns across cultures.

150+ Studies
Limitations and Disclaimers
Normative Limitations: Current reference norms are based on Western samples. Applicability in Chinese cultural contexts requires further validation.
Measurement Error: All psychometric tools are subject to measurement error. Results should be interpreted in conjunction with other information.
Dynamic Nature: Sexual repression levels can change over time. A single assessment does not represent a permanent trait.
Research Purposes: This tool is for academic research and self-discovery, not for clinical diagnosis or major decisions.