Development and validation of a modified questionnaire for vector assessment of female sexual constitution

Background. The assessment of the sexual constitution is an important stage in the assessment of a woman's psychosexual development. Classical scales developed in the second half of the 20th century require revision and modification due to acceleration, changes in social norms and the emergence of new data on age norms of sexual debut. The modified scale excludes the vector "age of pregnancy" due to its low informative value in modern conditions: it does not correlate with hormonal status and is strongly influenced by social factors (contraception, delayed motherhood). The lack of a modern validated instrument makes it difficult to differentiate between constitutionally determined features and pathology.
Objective. To develop a modified version of the scale for the vector determination of the sexual constitution in women, to carry out its psychometric validation and to prove the diagnostic significance of each of the included vectors in a clinical sample.
Materials and methods. The study included 150 women aged 18-45 years (average age 29.4 ± 6.7 years), divided into two groups: the clinical group (n = 75, complaints of sexual dysfunction) and the control group (n = 75, without complaints). All were evaluated on a modified scale (6 vectors) and evaluated on the classical scale by G. S. Vasilchenko. ROC analysis, calculation of sensitivity and specificity, correlation of Pearson and criterion χ2, and evaluation of internal consistency (Cronbach's law) were performed.
Results. The modified scale demonstrated high internal consistency (Cronbach's α = 0.89). The overall accuracy of the diagnosis of "weak constitution" was 92% (k = 0.88; p < 0.001). A strong correlation was found between a weak constitution and menstrual cycle disorders (p < 0.001). ROC analysis of the "Age of libido arousal" vector (AUC = 0.91) confirmed its high predictive ability in the differential diagnosis of hypolibidemia. The adjustment of the age limits (a shift towards earlier values) made it possible to increase the diagnostic accuracy by 15% compared with the classical scale.
Conclusion. The modified scale for the vector determination of the sexual constitution in women has high validity and reliability. The updated normative values (threshold ages) reflect current population trends and allow for a more accurate differentiation of the constitutional norm from pathology. Each of the six vectors makes an independent and meaningful contribution to the final assessment.

1. Vasilchenko G. S. Sexual pathology: a hand-book. лю.: Medicine. 1990, p. 576. (In Russ.)

2. O'Sullivan L. F., Brotto L. A., Byers E. S., Majerovich J. A., Wuest J. A. Prevalence and characteristics of sexual functioning among sexually experienced middle to late adolescents. J Sex Med. 2014; 11 (3): 630-641. DOI: 10.1111/jsm.12419. Epub 2014 Jan 12. PMID: 24418498.

3. Herbenick D, Fu TJ, Arter J, Sanders SA, Dodge B. Women's Experiences With Genital Touching, Sexual Pleasure, and Orgasm: Results From a U.S. Probability Sample of Women Ages 18 to 94. J Sex Marital Ther. 2018; 44 (2): 201-212. DOI: 10.1080/0092623X.2017.1346530. Epub 2017 Aug 9. PMID: 28678639.

4. Yoldemir T., Erenus M., Durmusoglu F. The impact of serum FSH and estradiol on postmenopausal osteoporosis related to time since menopause. Gynecol Endocrinol. 2012; 28 (11): 884-888. DOI: 10.3109/09513590.2012.683066. Epub 2012 Jun 25. PMID: 22731753.

5. Sanchez-Garrido M. A., Tena-Sempere M. Metabolic control of puberty: roles of leptin and kisspeptins. Horm Behav. 2013; 64 (2): 187-194. DOI: 10.1016/j.yhbeh.2013.01.014. PMID: 23998663.

6. Yagubov M. I., Kan I. Yu., Dobayeva N. V., Ayriyants I. R. A modified method for assessing sexual function in men. Lechaschi Vrach. 2025; 4 (28): 42-48. (In Russ.) https://doi.org/10.51793/OS.2025.28.4.006.