Sexual Satisfaction Scale (SSS)

Abstract

The Sexual Satisfaction Scale (SSS) is a brief, specialized patient-reported outcome (PRO) instrument designed to quantify an individual’s subjective satisfaction with their sexual relationship. Developed by the Consortium of Multiple Sclerosis Centers Health Services Research Subcommittee, the SSS serves as a crucial module within the larger Multiple Sclerosis Quality of Life Inventory (MSQLI). Its primary clinical and research application is among individuals diagnosed with Multiple Sclerosis (MS), a population where sexual health is often compromised but represents a vital domain of overall well-being. The instrument utilizes a short self-report format, recalling satisfaction levels over the preceding four weeks across key areas such as physical affection, activity variety, and general relationship quality, preceded by a necessary screening item.

Keywords

Sexual Satisfaction Scale, SSS, Multiple Sclerosis Quality of Life Inventory, MSQLI, Sexual Satisfaction, Quality of Life, MS, psychometrics, patient-reported outcome, sexual health.

Authors

The Consortium of Multiple Sclerosis Centers Health Services Research Subcommittee.

Purpose

The primary purpose of the Sexual Satisfaction Scale (SSS) is to establish a standardized, quantifiable measure of sexual function and satisfaction specifically tailored for use within the context of chronic neurological illness, particularly Multiple Sclerosis. Sexual health is often a neglected element of overall Quality of Life (QoL), yet it significantly impacts interpersonal and personal well-being for those managing MS.

By providing a structured, patient-reported measure, the SSS enables researchers and clinicians to systematically quantify the complex impact of MS and its therapeutic interventions on this critical domain. Functioning as a distinct module within the comprehensive MSQLI framework, the SSS ensures that sexual health data can be systematically collected alongside other vital domains commonly affected by MS, such as fatigue, mobility, and emotional health. The four-week recall period facilitates effective longitudinal tracking of changes over time, which is essential given the fluctuating nature of Multiple Sclerosis.

Construct

The SSS is designed to measure the psychological construct of perceived Sexual Satisfaction. This construct is defined as the individual’s subjective, cognitive, and affective evaluation of the overall quality of their sexual relationship and experiences. The scale operationalizes this complex construct through four core items that specifically assess satisfaction levels regarding physical affection, the variety of sexual activities, and general satisfaction, encompassing both the individual’s personal feelings and their perception of their partner’s satisfaction.

Rooted in the measurement philosophy of the Medical Outcomes Study (MOS) tradition, the SSS emphasizes the functional status and subjective well-being derived from intimate relationships, rather than objective physiological performance. This focus recognizes that for individuals with chronic conditions like Multiple_Sclerosis, the emotional, relational, and self-perceived quality of the sexual relationship is often the most paramount factor determining overall sexual health and adjustment.

Validity

The validity of the Sexual Satisfaction Scale is primarily established through its rigorous integration within the broader validation studies conducted for the MSQLI. The SSS demonstrates strong face validity, as its items clearly and directly address the core elements of satisfaction in a sexual relationship that are pertinent to the needs and challenges of the MS patient population. The development methodology adhered strictly to the established principles for measuring functioning and well-being outcomes, as outlined by Stewart and Ware (1992).

Furthermore, evidence of concurrent validity supports the SSS, showing expected and meaningful correlations with other relevant domains within the MSQLI. Specifically, lower scores on the SSS (indicating poor sexual satisfaction) typically correlate negatively with measures of emotional well-being, relationship support, and overall mental health reported by MS patients, confirming that the scale accurately captures a linked dimension of quality of life.

Reliability

Given its structure as a brief, short-form scale, the SSS is expected to exhibit acceptable levels of internal consistency, typically quantified using established psychometric indices such as Cronbach’s alpha, when administered to clinical populations. Reliability assessments performed during the MSQLI development phase aimed to ensure high test-retest reliability. This consistency in measurement across repeated administrations is critical, particularly when monitoring patients with a fluctuating chronic condition like Multiple Sclerosis, where stable measurement is necessary to accurately distinguish true clinical change from measurement error.

The reliability of instruments like the SSS is fundamental for both clinical intervention monitoring and research purposes, allowing practitioners and investigators to confidently track patient progress in clinical trials and evaluate the effectiveness of targeted interventions aimed at improving patient-reported outcomes related to sexual and relational health.

Factor Analysis

The Sexual Satisfaction Scale is conceptualized and treated as a unidimensional subscale within the larger, multi-domain structure of the MSQLI. This structural assumption implies that the four core rating items are expected to load significantly onto a single, underlying psychological factor, which represents the overarching construct of global Sexual Satisfaction. Initial factor analysis conducted during the development of the MSQLI likely confirmed this single-factor model, thereby supporting the aggregation of the individual item scores into one comprehensive total score for sexual well-being.

This streamlined, single-factor approach offers considerable advantages for clinical interpretation, allowing healthcare providers to obtain an efficient and holistic gauge of a patient’s subjective experience regarding their sexual relationship quality without the need to analyze multiple, potentially confusing, distinct sub-dimensions of satisfaction.

Instrument

Test Type: Self-administered, patient-reported outcome measure (PRO).

Format: A brief questionnaire comprising 5 items: 1 mandatory screening question followed by 4 core rating items. The core satisfaction items utilize a 6-point Likert scale format.

Language Available: Primarily English; however, translations may be available corresponding to international versions of the MSQLI (Multiple Sclerosis Quality of Life Inventory).

Population Group: Clinical population.

Age Group: Adult patients (typically 18 years and older).

Population Details: Individuals who have received a diagnosis of Multiple Sclerosis (MS).

Test Methodology: Respondents are instructed to rate their subjective satisfaction levels based on their experiences over the preceding four weeks. The 6-point response set ranges from 1=Extremely Satisfied to 6=Extremely Dissatisfied. A critical initial screening question assesses the presence of a primary partner; only those answering affirmatively proceed to the subsequent satisfaction questions.

Keywords

Multiple Sclerosis, sexual health, relationship satisfaction, affection, quality of life inventory, self-report, psychological scale, clinical assessment, patient outcomes.

Authors

Author ORCID Identifier: Not publicly available for the Consortium of Multiple Sclerosis Centers Health Services Research Subcommittee.

Affiliation Email addresses: Information not provided in the source material.

Correspondence Address: Correspondence concerning the MSQLI and its constituent subscales, including the SSS, is generally handled through the National Multiple Sclerosis Society or the Consortium of Multiple Sclerosis Centers (CMSC).

Permissions & Fee and Test Year

The Sexual Satisfaction Scale is not typically distributed as a standalone measure; rather, it is included as an integral subscale of the Multiple Sclerosis Quality of Life Inventory (MSQLI). Usage rights, licensing, and permissions are managed jointly by the National Multiple Sclerosis Society and the Consortium of Multiple Sclerosis Centers. While the exact year of the SSS’s specific introduction may vary, the overarching MSQLI framework, which provides its methodological basis, was developed and extensively refined throughout the 1990s, building upon the seminal measurement principles established by Stewart and Ware in 1992.

Prospective users seeking detailed information on obtaining the instrument or inquiring about associated licensing fees must consult the official governing sources provided by the National Multiple Sclerosis Society and the CMSC. The original PDF user manual for the MSQLI, which contains the Sexual Satisfaction Scale, can be downloaded here: http://www.nationalmssociety.org/NationalMSSociety/media/MSNationalFiles/Brochures/MSQLI_-A-User-s-Manual.pdf.

Reference’s

• Stewart‚ A.L.‚ & Ware‚ J.E. (1992). Measuring functioning and well-being: The Medical Outcomes Study approach. Durham‚ NC: Duke University Press.

• The Consortium of Multiple Sclerosis Centers Health Services Research Subcommittee. Multiple Sclerosis Quality of Life Inventory (MSQLI).

Items of the Sexual Satisfaction Scale (SSS)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

1. Do you have a relationship with one primary partner?

   • No [GO TO NEXT QUESTIONNAIRE] 0

   • Yes 1

2. During the past 4 weeks‚ how satisfied have you been with the amount of affection expressed physically in your relationship?

3. During the past 4 weeks‚ how satisfied have you been with the variety of sexual activities you engage in with your partner?

4. During the past 4 weeks‚ how satisfied have you been with your sexual relationship in general?

5. How satisfied do you think your partner has been with your sexual relationship in general‚ during the past 4 weeks?

Response Options (6-point scale): 1=Extremely Satisfied‚ 2=Moderately Satisfied‚ 3=Slightly Satisfied‚ 4=Slightly Dissatisfied‚ 5=Moderately Dissatisfied‚ 6=Extremely Dissatisfied