Skip to main content

Research Repository

Advanced Search

Outputs (9)

Fatherhood, egalitarianism, and child health in two small-scale societies in the Republic of the Congo (2019)
Journal Article
Boyette, A. H., Lew-Levy, S., Sarma, M. S., Valchy, M., & Gettler, L. T. (2020). Fatherhood, egalitarianism, and child health in two small-scale societies in the Republic of the Congo. American Journal of Human Biology, 32(4), Article e23342. https://doi.org/10.1002/ajhb.23342

Objectives The study goals were to (a) characterize the cultural model of fatherhood among the BaYaka, a community of egalitarian foragers in the Republic of the Congo; (b) test if BaYaka fathers' quality in relation to the cultural model predicts t... Read More about Fatherhood, egalitarianism, and child health in two small-scale societies in the Republic of the Congo.

Epigenetic aging in children from a small-scale farming society in The Congo Basin: Associations with child growth and family conflict (2019)
Journal Article
Gettler, L. T., Lin, D. T. S., Miegakanda, V., Lew-Levy, S., Eick, G. N., Snodgrass, J. J., …Boyette, A. H. (2020). Epigenetic aging in children from a small-scale farming society in The Congo Basin: Associations with child growth and family conflict. Developmental Psychobiology, 62(2), 138-153. https://doi.org/10.1002/dev.21935

Developmental environments influence individuals' long-term health trajectories, and there is increasing emphasis on understanding the biological pathways through which this occurs. Epigenetic aging evaluates DNA methylation at a suite of distinct Cp... Read More about Epigenetic aging in children from a small-scale farming society in The Congo Basin: Associations with child growth and family conflict.

Gender-Typed and Gender-Segregated Play Among Tanzanian Hadza and Congolese BaYaka Hunter-Gatherer Children and Adolescents (2019)
Journal Article
Lew-Levy, S., Boyette, A. H., Crittenden, A. N., Hewlett, B. S., & Lamb, M. (2020). Gender-Typed and Gender-Segregated Play Among Tanzanian Hadza and Congolese BaYaka Hunter-Gatherer Children and Adolescents. Child Development, 91(4), 1284-1301. https://doi.org/10.1111/cdev.13306

Few data exist on gender-typed and gender-segregated play in hunter-gatherer societies, despite their unique demographic and cultural features which may influence children’s gendered play. Using naturalistic observations of Hadza (N = 46, 41% female)... Read More about Gender-Typed and Gender-Segregated Play Among Tanzanian Hadza and Congolese BaYaka Hunter-Gatherer Children and Adolescents.

Universal norm psychology leads to societal diversity in prosocial behaviour and development (2019)
Journal Article
House, B. R., Kanngiesser, P., Barrett, H. C., Broesch, T., Cebioglu, S., Crittenden, A. N., …Silk, J. B. (2020). Universal norm psychology leads to societal diversity in prosocial behaviour and development. Nature Human Behaviour, 4, 36-44. https://doi.org/10.1038/s41562-019-0734-z

Recent studies have proposed that social norms play a key role in motivating human cooperation and in explaining the unique scale and cultural diversity of our prosociality. However, there have been few studies that directly link social norms to the... Read More about Universal norm psychology leads to societal diversity in prosocial behaviour and development.

Inter-and intra-cultural variation in learning-through-participation among Hadza and BaYaka forager children and adolescents from Tanzania and Congo (2019)
Journal Article
Lew-Levy, S., Crittenden, A. N., Boyette, A. H., Mabulla, I. A., Hewlett, B. S., & Lamb, M. E. (2019). Inter-and intra-cultural variation in learning-through-participation among Hadza and BaYaka forager children and adolescents from Tanzania and Congo. Journal of Psychology in Africa, 29(4), 309-318. https://doi.org/10.1080/14330237.2019.1647957

We examined cross-cultural variation in children’s learning-through-participation in economic work in two forager societies; the Hadza of Tanzania and the BaYaka of the Republic of Congo. We used observational data from 46 Hadza (41% female) and 65 B... Read More about Inter-and intra-cultural variation in learning-through-participation among Hadza and BaYaka forager children and adolescents from Tanzania and Congo.

Mothers' and fathers' joint profiles for testosterone and oxytocin in a small-scale fishing-farming community: Variation based on marital conflict and paternal contributions (2019)
Journal Article
Gettler, L. T., Sarma, M. S., Lew-Levy, S., Bond, A., Trumble, B. C., & Boyette, A. H. (2019). Mothers' and fathers' joint profiles for testosterone and oxytocin in a small-scale fishing-farming community: Variation based on marital conflict and paternal contributions. Brain and Behavior, 9, https://doi.org/10.1002/brb3.1367

Who teaches children to forage? Exploring the primacy of child-to-child teaching among Hadza and BaYaka Hunter-Gatherers of Tanzania and Congo (2019)
Journal Article
Lew-Levy, S., Kissler, S. M., Boyette, A. H., Crittenden, A. N., Mabulla, I. A., & Hewlett, B. S. (2020). Who teaches children to forage? Exploring the primacy of child-to-child teaching among Hadza and BaYaka Hunter-Gatherers of Tanzania and Congo. Evolution and Human Behavior, 40(1), 12-22. https://doi.org/10.1016/j.evolhumbehav.2019.07.003

Teaching is cross-culturally widespread but few studies have considered children as teachers as well as learners. This is surprising, since forager children spend much of their time playing and foraging in child-only groups, and thus, have access to... Read More about Who teaches children to forage? Exploring the primacy of child-to-child teaching among Hadza and BaYaka Hunter-Gatherers of Tanzania and Congo.