Evidence for an altered sex ratio in clinic-referred adolescents with gender dysphoria.
Sociological and sociocultural explanations are offered to account for this recent inversion in the sex ratio of adolescents with gender dysphoria.
Male Sexual Orientation in Independent Samoa: Evidence for Fraternal Birth Order and Maternal Fecundity Effects
This study employed a larger, independent replication sample of fa’afafine and gynephilic males from Independent Samoa to suggest that fraternal birth order and maternal fecundity effects both exist in Samoa.
Poor peer relations predict parent- and self-reported behavioral and emotional problems of adolescents with gender dysphoria: a cross-national, cross-clinic comparative analysis
- A. D. de Vries, T. Steensma, P. Cohen-Kettenis, D. Vanderlaan, K. Zucker
- PsychologyEuropean Child and Adolescent Psychiatry
- 15 September 2015
A measure of poor peer relations was the strongest predictor of CBCL and YSR behavioral and emotional problems in gender dysphoric adolescents.
Self-Harm and Suicidality in Children Referred for Gender Dysphoria.
Birth order and male androphilia in Samoan fa'afafine
Results indicate that relative to gynephilic males, fa'afafine tend to have more siblings and are generally later born when birth order is quantified using Slater, fraternal and sororal indices.
Targets and Tactics of Play Fighting: Competitive versus Cooperative Styles of Play in Japanese and Tonkean Macaques
A detailed analysis of videotaped sequences of juvenile play fighting in Tonkean and Japanese macaques suggested that differences in styles of attack anddefense in play fighting may be influenced by differences in the species' social systems.
Behavioral and Emotional Problems on the Teacher’s Report Form: A Cross-National, Cross-Clinic Comparative Analysis of Gender Dysphoric Children and Adolescents
- T. Steensma, K. Zucker, P. Cohen-Kettenis
- PsychologyJournal of Abnormal Child Psychology
- 30 April 2014
This first cross-national investigation that assessed behavior and emotional problems and the quality of peer relations, both measured by the Teacher’s Report Form (TRF), in a sample of gender dysphoric patients, showed the same pattern of emotional and behavioral problems in both countries.
Kin selection and male androphilia in Samoan fa'afafine
Mate Retention Behavior of Men and Women in Heterosexual and Homosexual Relationships
Examining one aspect of mating psychology, mate retention behavior, and testing whether homosexual men and women were sex-typical or sex-atypical for those mate retention tactics where heterosexual men and men differed, indicates that, aside from sexual partner preference, the mating psychology of homosexual men is sex-Typical whereas that of homosexual women tends to be more sex- atypical.
Autism Spectrum Disorder Risk Factors and Autistic Traits in Gender Dysphoric Children
- D. Vanderlaan, J. Leef, Hayley Wood, S. K. Hughes, K. Zucker
- PsychologyJournal of Autism and Developmental Disorders
- 1 June 2015
High birth weight was associated with both high gender nonconformity and autistic traits among GD children, and developmental processes associated with high birth weight are likely to underlie the GD–ASD link either directly or indirectly.