Validation of Brazilian Version of the Sexual Desire Inventory 2 (SDI-2).

Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia Pub Date : 2024-10-23 eCollection Date: 2024-01-01 DOI:10.61622/rbgo/2024rbgo78

Denisse Cartagena-Ramos, Miguel Fuentealba-Torres, Flávio Rebustini, Josilene Alves, Alessandro Scholze, Lúcia Alves da Silva Lara, Ricardo Arcêncio, Lucila Castanheira Nascimento

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Abstract

Objective: To traslate and validate of the Brazilian version of the SDI-2.

Methods: This was a cross-sectional study. The cultural adaptation considered the stages of initial translation, synthesis of translations, evaluation by a committee of experts from different regions of Brazil, back-translation, and pre-test. The content validity and psychometric proprieties was assessed.

Results: Ten specialists participated in the cultural adaptation of the SDI-2. The content validity showed a Content Validity Ratio (CVR) ≥ 0.75 (p = 0.05). A total of 674 subjects participated in the field study. The Exploratory Factorial Analysis (EFA) presented factor loads ≥ 0.445, and commonalities ≥ 0.40; and two dimensions represented 77% of the total variance explained. The Confirmatory Factorial Analysis CFA presented X ²/df = 4.265; the Root Mean Square Error of Approximation RMSEA = 0.110; the Non-Normed Fit Index NNFI = 0.946; the Comparative Fit Index (CFI) = 0.963; the Goodness of Fit Index GFI = 0.986; and the Adjusted Goodness of Fit Index AGFI = 0.979 for a two-factor model. The coefficient values for the total SDI-2 score were 0.91 for Cronbach's alpha, 0.91 for McDonald's Omega, and 0.97 for the Greatest Lower Bound GLB coefficients. The invariance between sexes was 0.01 for the ΔCFI and ΔRMSEA, showing model stability for these two populations.

Conclusion: The Brazilian version of the SDI-2 is self-report, valid, reliable and invariant across sex.

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验证巴西版性欲量表 2 (SDI-2)。

目的方法：这是一项横断面研究：这是一项横断面研究。文化适应包括初译、译文合成、巴西不同地区专家委员会评估、回译和预测试等阶段。对内容有效性和心理测量学特性进行了评估：结果：十位专家参与了 SDI-2 的文化改编工作。内容效度显示内容效度比（CVR）≥ 0.75（p = 0.05）。共有 674 名受试者参加了实地研究。探索性因子分析（EFA）显示因子载荷≥ 0.445，共性≥ 0.40；两个维度占解释总方差的 77%。对于双因素模型，确证因子分析（CFA）显示 X 2/df = 4.265；近似均方根误差 RMSEA = 0.110；非标准化拟合指数 NNFI = 0.946；比较拟合指数（CFI） = 0.963；拟合优度指数 GFI = 0.986；调整后拟合优度指数 AGFI = 0.979。SDI-2 总分的 Cronbach's alpha 系数值为 0.91，McDonald's Omega 系数值为 0.91，Greatest Lower Bound GLB 系数值为 0.97。性别间的ΔCFI和ΔRMSEA不变性为0.01，表明这两种人群的模型具有稳定性：结论：巴西版 SDI-2 是自我报告式的，有效、可靠，且不分性别。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia

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