BACKGROUND Sexual fantasies are described as thoughts or mental images with sexual content. The Hurlbert Index of Sexual Fantasy (HISF) evaluates the positive attitude towards sexual fantasies. The objective of this study was to provide validity evidence of the Spanish version of the HISF and to present its standard scores. METHOD The sample was composed of 3,458 adults from the general Spanish population (1,641 men; 1,817 women), distributed across age groups (18-34, 35-49, and over 50 years old). RESULTS The unifactorial structure of the Spanish version of the HISF showed strict measurement invariance across sex, age range, and education level. Positive attitudes towards sexual fantasies significantly correlated with erotophilia, sexual assertiveness, sexual desire, and sexual functioning. Also, the scale was useful for differentiating between individuals with sexual functioning difficulties and individuals with no difficulties. Finally, the standard scores were obtained based on sex and age range. CONCLUSIONS The Spanish version of the HISF is a reliable, valid, and invariant scale for assessing a positive attitude towards sexual fantasies in people with different sociodemographic characteristics.

中文翻译：

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西班牙版赫伯特性幻想指数的有效性证据和规范。

背景性幻想被描述为具有性内容的思想或心理图像。赫伯特性幻想指数 (HISF) 评估对性幻想的积极态度。本研究的目的是提供西班牙版 HISF 的有效性证据并展示其标准分数。方法 样本由来自西班牙总人口的 3,458 名成年人（1,641 名男性；1,817 名女性）组成，分布在各个年龄组（18-34、35-49 和 50 岁以上）。结果 HISF 西班牙文版的单因素结构显示出跨性别、年龄范围和教育水平的严格测量不变性。对性幻想的积极态度与性欲、性自信、性欲和性功能显着相关。还，该量表有助于区分有性功能障碍的个体和没有性功能障碍的个体。最后，根据性别和年龄范围获得标准分数。结论 HISF 的西班牙语版本是一种可靠、有效和不变的量表，用于评估具有不同社会人口学特征的人对性幻想的积极态度。