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Does the Fraternal Birth Order Effect Influence Handedness?
The fraternal birth order effect (FBOE) is the phenomenon whereby the probability that a man has a same-sex sexual orientation in adulthood increases...
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Examining the Fraternal Birth Order Effect and Sexual Orientation: Insights from an East European Population
The development of human sexual orientation remains a complex and multifaceted subject. It is often studied but its origins continue to elude us. In...
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Testing Fraternal Birth Order Effects and Antagonistic Effects for Homosexual Men: Power Comparison of Various Methods
Research on the biological determinants of male homosexual preference has long realized that the older brother effect (FBOE, i.e., a higher fraternal...
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The Impact of Birth Order on Language Development in Autistic Children from Simplex Families
The current study investigated the impact of birth order on vocabulary and social language development in 1338 first-born and 1049 s-born autistic...
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Sibling relationships of older adults in China: The role of gender composition and birth order
Many older adults in China are facing a severe shortage of social support. Although siblings play a crucial role in providing support for older...
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How birth order moderates the negative effects of insecure attachment on anticipatory anxiety regarding parent care
Caregiving for aging parents can be a stressful process for middle-aged adults. Accordingly, many adult children experience anticipatory anxiety...
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Birth Order and First Sexual Experience: Do Siblings Influence Sexual Debut in Adolescents?
Birth order may foster specific roles for individuals within the family and set in train a dynamic that influences the development of specific...
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Relationship between birth memories and recall and perception of traumatic birth in women in the postpartum one-year period and affecting factors
This study examines the relationship between birth memory and recall and the perception of traumatic birth in women who were a postpartum one-year...
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New Data on Birth Order in Homosexual Men and Women and a Reply to Vilsmeier et al. (2021a, 2021b)
The fraternal birth order effect (FBOE) is the repeated finding that older brothers increase the odds of homosexuality in later-born males. It has...
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The relationship between fear of birth and feelings of security
Fear of childbirth is experienced in the pre-pregnancy period, during pregnancy and in the postpartum period, and the source of fear may vary in each...
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Is it a judgment of representativeness? Re-examining the birth sequence problem
Although all birth orders in the “birth sequence problem” are equiprobable, most participants judge the less representative order as less likely than...
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The Use of Birth Records to Study Child Abuse and Neglect
Vital birth records are underutilized as a data resource for child maltreatment researchers. Birth records have a number of characteristics that...