This study investigates the development and validation of a gender identity screener designed to support early identification of gender-diverse and transgender children in pediatric care. Recognizing that gender identity forms a critical component of child development, the project responds to the current gap in standardized screening tools that enable healthcare providers to recognize and support children experiencing gender dysphoria. Researchers conducted a national online survey of 3,000 parents and 15–20 semi-structured interviews with parents of children ages 3–12 to explore perceptions of proposed gender-related questions. Using qualitative thematic analysis and psychometric methods, including factor analysis and item response theory (IRT), the study examined how diverse parents interpret, value, and respond to screening items. Findings reveal both enthusiasm for inclusive tools and concerns about sensitivity, privacy, and clarity. These insights are guiding refinement of the screener to ensure it is evidence-based, culturally responsive, and accessible. The next phase of research will collaborate with pediatric clinicians to evaluate feasibility and implementation, aiming to create an equitable instrument that promotes early support for all children, including those exploring gender identity.