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. 2022 Mar;19(3):507-520.
doi: 10.1016/j.jsxm.2021.12.007. Epub 2022 Jan 14.

Measuring the Sexual Acceptability of Contraception: Psychometric Examination and Development of a Valid and Reliable Prospective Instrument

Jessica N Sanders  1 , Jacob Kean  2 , Chong Zhang  2 , Angela P Presson  2 , Bethany G Everett  2 , David K Turok  2 , Jenny A Higgins  3
Affiliations

Measuring the Sexual Acceptability of Contraception: Psychometric Examination and Development of a Valid and Reliable Prospective Instrument

Jessica N Sanders et al. J Sex Med. 2022 Mar.

Abstract

Background: People's sexual experiences have a strong association with contraceptive satisfaction and continuation, but no measures exist to specifically assess contraceptive-related sexual acceptability.

Aim: This study developed and examined the psychometric properties of reliability, separation, and item fit of a new Contraceptive Sexual Acceptability (CSA) instrument.

Methods: Enrolled participants initiating a new contraceptive method from the HER Salt Lake longitudinal cohort study contributed baseline survey responses for scale development. The study included the Female Sexual Function Index, the New Sexual Satisfaction Scale, measures of physical and mood-related side effects, and self-reported perceptions of contraception's sexual impacts. Items from these measures' served as the basis for analyses. We analyzed responses using descriptive techniques and modeled using exploratory factor (EFA) and bifactor analyses (BFA). The Masters' Partial Credit Rasch method modeled reliability, separation, and item fit statistics. Here we evaluate (i) the reproducibility of relative measure location on the modeled linear latent variable, (ii) the number of statistically unique performance levels that can be distinguished by the measure, and (iii) the discrepancy between item responses and expectations of the model. Psychometric findings and theoretical models informed item reduction and final scale development.

Outcomes: We developed a 10-item Contraceptive Sexual Acceptability scale that exceeded the thresholds and sufficiently covered domains for use in contraceptive research and clinical settings.

Results: Starting with data on 39-items from 4,387 individuals, we identified 10-items that best measured the CSA latent construct. The Rasch model included a total of 5 calibrations. We reduced items based on bifactor analysis and surpassed unidimensionality thresholds (OH = 0.84, ECV = 0.74) set a priori. The final items included questions with scaled responses about pleasure and orgasm (orgasm quality, orgasm frequency, giving partner pleasure), physical (arousal and function) and psychological (emotional connection, surrender) components, general questions of satisfaction and frequency, and a measure of perceived impact of contraception on sexual experiences in the previous 4 weeks.

Clinical implications: The 10-item CSA instrument covers physical and psychological aspects of contraceptive sexual acceptability and can be used in clinical settings.

Strengths & limitations: The unidimensional CSA instrument offers a brief, yet comprehensive assessment of sexual acceptability. Given the limited diversity of the sample, implementation of this scale in contraceptive research and clinical interactions should be evaluated and validated in more diverse settings.

Conclusion: Attuning to sexual acceptability could ultimately help contraceptive clients find methods that better meet their needs and preferences. Sanders JN, Kean J, Zhang C, et al. Measuring the Sexual Acceptability of Contraception: Psychometric Examination and Development of a Valid and Reliable Prospective Instrument. J Sex Med 2022;19:507-520.

Keywords: Contraception; Patient Reported Outcome; Psychometric Instrument Development; Questionnaire; Reliability; Sexual Acceptability; Validation.

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Conflict of interest statement

Conflict of Interest. The lead author (J.S.) works as a scientific advisor for Bayer Pharmaceuticals outside of the submitted work. Medicines360, Merck, and Sebela have contracts with the University of Utah Department of Obstetrics & Gynecology to serve as a clinical research site outside the submitted work (D.K.T.). Sebela Pharmaceuticals contracts with the University of Utah Department of Obstetrics & Gynecology for D.K.T.'s work as a scientific advisor outside the submitted work. The remaining authors report no conflict of interest.

Figures

None
Item-characteristic curves for 10-items included in CSA Scale.
Figure 1.
Figure 1.. Rasch Model Calibrations of the HER Salt Lake contraceptive sexual acceptability items to report measure reliability and separation and amount of variance explained.
Note: The Eigenvalue is a measure of how much of the variance of the observed variables a factor explains. Any factor with an eigenvalue ≥1 explains more variance than a single observed variable.
Figure 2
Figure 2. 10-item contraceptive acceptability scale.
Recommended Prompt: The following questions are about your sexual experiences over the past 4 weeks; these may include a variety of activities and is not limited to just intercourse. *If all questions are complete, use sum score. **If missing use average sum score/ number of completed questions. Clinical Recommendation: We recommend adding an open-ended discussion prompt– Tell me a bit more about how your contraceptive method has impacted your sex life.
See this image and copyright information in PMC

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