Background: Researchers combined both versions of the original Utrecht Gender Dysphoria Scale (UGDS) to create a single gender spectrum version (UGDS-GS) which measures dissatisfaction with gender identity and expression over time as well as comfort with affirmed gender identity. Aim: This study examined the construct validity of the newly revised, UGDS-GS. Method: Tests of measurement invariance were conducted in stages to assess measurement invariance of the UGDS-GS across three groups: cisgender, binary transgender, and nonbinary/genderqueer. Results: Findings indicate that the UGDS-GS functions acceptably in all three gender groups (configural and metric invariance). Also, across binary transgender and nonbinary/genderqueer groups, the measure functions very similarly with all four types of invariance. Item level findings highlight the specificity of the measure to distinguish experiences of binary transgender and nonbinary/genderqueer persons differently from cisgender LGBQ individuals. Conclusions: The UGDS-GS demonstrates a large degree of invariance across binary transgender, nonbinary/genderqueer, and cisgender LGBQ subgroups; and therefore, findings indicate this revision to be a substantial improvement. This 18-item self-report, Likert-type scale measure is a) inclusive of all gender identities and expressions (e.g., transfeminine spectrum, transmasculine spectrum, genderqueer, nonbinary, cisgender); b) appropriate for use longitudinally from adolescence to adulthood; and c) administered at any point in the social or medical transition process, if applicable, or in community-based research focused on gender dysphoria that examines cisgender and transgender persons.
Background: Researchers combined both versions of the original Utrecht Gender Dysphoria Scale (UGDS) to create a single gender spectrum version (UGDS-GS) which measures dissatisfaction with gender identity and expression over time as well as comfort with affirmed gender identity. Aim: This study examined the construct validity of the newly revised, UGDS-GS. Method: Tests of measurement invariance were conducted in stages to assess measurement invariance of the UGDS-GS across three groups: cisgender, binary transgender, and nonbinary/genderqueer. Results: Findings indicate that the UGDS-GS functions acceptably in all three gender groups (configural and metric invariance). Also, across binary transgender and nonbinary/genderqueer groups, the measure functions very similarly with all four types of invariance. Item level findings highlight the specificity of the measure to distinguish experiences of binary transgender and nonbinary/genderqueer persons differently from cisgender LGBQ individuals. Conclusions: The UGDS-GS demonstrates a large degree of invariance across binary transgender, nonbinary/genderqueer, and cisgender LGBQ subgroups; and therefore, findings indicate this revision to be a substantial improvement. This 18-item self-report, Likert-type scale measure is a) inclusive of all gender identities and expressions (e.g., transfeminine spectrum, transmasculine spectrum, genderqueer, nonbinary, cisgender); b) appropriate for use longitudinally from adolescence to adulthood; and c) administered at any point in the social or medical transition process, if applicable, or in community-based research focused on gender dysphoria that examines cisgender and transgender persons.
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