TY - JOUR
T1 - Satisfaction with sex life scale
T2 - New psychometric evidence in a Portuguese population
AU - Caycho-Rodríguez, Tomás
AU - Vilca, Lindsey W.
AU - Neto, Felix
AU - Peña-Calero, Brian Norman
AU - Schnettler, Berta
AU - Cadena, Cirilo H.Garcia
AU - Barboza-Palomino, Miguel
AU - Neto, Joana
AU - White, Michael
N1 - Publisher Copyright:
© 2021 by Author/s and Licensed by Modestum.
PY - 2021
Y1 - 2021
N2 - Introduction: In recent years, greater attention has been paid to research on sexual satisfaction because of its association with general well-being and increased interest in sexual and public health issues. Objectives: The objective of this study was to evaluate the psychometric properties of the Satisfaction with Sex Life Scale (SWSLS). Methods: 2,154 Portuguese individuals (M = 34.67 years, SD = 17.18) participated. Confirmatory factor analysis (CFA) and item response theory (IRT) were used. Specifically, the internal structure, reliability and factor invariance of the SWSLS were evaluated by sex and age, as well as the characteristics and performance of the items based on the IRT analysis. Results: The SWSLS Confirmatory Factor Analysis confirmed that a one-dimensional model fit the data well, both for the total sample and for each sex and age group. Furthermore, the SWSLS has adequate reliability for internal consistency. Factor invariance across sex and age was supported by confirmatory multigroup factor analysis. The graduated response model showed a good fit for the one-dimensional model, while the item and test information curves indicated that the SWSLS is more informative to identify high levels of sexual satisfaction. Conclusion: The SWSLS has adequate psychometric properties to measure general sexual satisfaction in the Portuguese population regardless of age and sex.
AB - Introduction: In recent years, greater attention has been paid to research on sexual satisfaction because of its association with general well-being and increased interest in sexual and public health issues. Objectives: The objective of this study was to evaluate the psychometric properties of the Satisfaction with Sex Life Scale (SWSLS). Methods: 2,154 Portuguese individuals (M = 34.67 years, SD = 17.18) participated. Confirmatory factor analysis (CFA) and item response theory (IRT) were used. Specifically, the internal structure, reliability and factor invariance of the SWSLS were evaluated by sex and age, as well as the characteristics and performance of the items based on the IRT analysis. Results: The SWSLS Confirmatory Factor Analysis confirmed that a one-dimensional model fit the data well, both for the total sample and for each sex and age group. Furthermore, the SWSLS has adequate reliability for internal consistency. Factor invariance across sex and age was supported by confirmatory multigroup factor analysis. The graduated response model showed a good fit for the one-dimensional model, while the item and test information curves indicated that the SWSLS is more informative to identify high levels of sexual satisfaction. Conclusion: The SWSLS has adequate psychometric properties to measure general sexual satisfaction in the Portuguese population regardless of age and sex.
KW - Item response theory
KW - Psychometric properties
KW - Satisfaction with sex life scale
KW - Sexual satisfaction
KW - Structural equation model
UR - http://www.scopus.com/inward/record.url?scp=85120321792&partnerID=8YFLogxK
U2 - 10.29333/ejgm/11318
DO - 10.29333/ejgm/11318
M3 - Article
AN - SCOPUS:85120321792
SN - 2516-3507
VL - 18
JO - Electronic Journal of General Medicine
JF - Electronic Journal of General Medicine
IS - 6
M1 - em331
ER -
