Found 2366 Hypotheses across 237 Pages (0.006 seconds)
  1. "The average menstrual age is younger in societies where the average height of females is greater" (223)Whiting, John W.M. - Menarcheal age and infant stress in humans, 1965 - 2 Variables

    This study examines the relationship between infant stress and early menarche. Empirical analysis suggests that stress in infancy, such as mother-infant separation and head-shaping, are associated with early menarche.

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  2. Menarcheal age was negatively related to infant cold stress and infant internal stress (227)Whiting, John W.M. - Menarcheal age and infant stress in humans, 1965 - 3 Variables

    This study examines the relationship between infant stress and early menarche. Empirical analysis suggests that stress in infancy, such as mother-infant separation and head-shaping, are associated with early menarche.

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  3. "The association between menarcheal age and the Gunders mother separation scores . . . [indicates] that this type of stress also leads to early menarche" (228)Whiting, John W.M. - Menarcheal age and infant stress in humans, 1965 - 2 Variables

    This study examines the relationship between infant stress and early menarche. Empirical analysis suggests that stress in infancy, such as mother-infant separation and head-shaping, are associated with early menarche.

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  4. Infant stress (physical or separation) will be correlated with age at menarche (366).Landauer, Thomas K. - Correlates and consequences of stress in infancy, 1981 - 2 Variables

    This study is a continuation of previous research on the relationship between stress during infancy and adult height. With a better understanding of the stressors that infants experience and their effects, the authors test whether the relationship between stress and adult height remains significant when accounting for other environmental factors that may influence adult height. Results suggest that the relationship between infant stress and adult height does remain significant. Findings also show a relationship between infant stress and age at menarche.

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  5. The effect of one physical stressor will not differ significantly from the effect of two or more combined stressors (360).Landauer, Thomas K. - Correlates and consequences of stress in infancy, 1981 - 2 Variables

    This study is a continuation of previous research on the relationship between stress during infancy and adult height. With a better understanding of the stressors that infants experience and their effects, the authors test whether the relationship between stress and adult height remains significant when accounting for other environmental factors that may influence adult height. Results suggest that the relationship between infant stress and adult height does remain significant. Findings also show a relationship between infant stress and age at menarche.

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  6. Controlling for genetics, climate, and nutrition, infant stress will be significantly related to adult male height (361).Landauer, Thomas K. - Correlates and consequences of stress in infancy, 1981 - 5 Variables

    This study is a continuation of previous research on the relationship between stress during infancy and adult height. With a better understanding of the stressors that infants experience and their effects, the authors test whether the relationship between stress and adult height remains significant when accounting for other environmental factors that may influence adult height. Results suggest that the relationship between infant stress and adult height does remain significant. Findings also show a relationship between infant stress and age at menarche.

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  7. "In societies where infants' heads/limbs were repeatedly molded or stretched, where ears, noses or lips were pierced, where they were circumcised, vaccinated, innoculated or scarred with tribal marks, mean adult stature was over two inches greater" (1018)Landauer, Thomas K. - Infantile stimulation and adult stature of human males, 1964 - 4 Variables

    In previous studies, researchers have observed an increased growth rate in rats that experienced stimulation during infancy. This study examines the relationship between stressful experiences during infancy and adult male stature in humans cross-culturally. Results suggest a strong positive relationship between infant stress and adult male stature.

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  8. "Four measures of responsibility socialization show positive strong relationships with ceremonial drinking . . . and with general consumption of alcohol" (42)Bacon, Margaret K. - A cross-cultural study of drinking: ii. relations to other features of culture, 1965 - 5 Variables

    This study explores cultural variables associated with frequency of drunkenness and ceremonial drinking. Particular attention was paid to childhood socialization variables, as well as politcal and social organization. Results show a low correlation between frequency of drunkenness and frequency of ceremonial drinking, and various other variables are associated with each.

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  9. Hunter-gatherer children will transition into the multi-age playgroup during middle childhood.Lew-Levy, Sheina - How Do Hunter-Gatherer Children Learn Subsistence Skills?, 2017 - 1 Variables

    To understand transmission of knowledge and its impact on human evolution history, this study explores the research question: "How do hunter-gatherer children learn subsistence skills?". The authors use meta-ethnography methods on 34 cultures from five continents discussing these topics. The results show that the learning process starts early in infancy when their parents take them to the excursions. In middle childhood, they already acquired gathering skills. Only in the start of adolescence, adults begin teaching how to hunt and to produce complex tools. The learning process continues into adulthood.

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  10. Subsistence type is positively correlated with type of land tenure system.Moritz, Mark - Comparative Study of Territoriality across Forager Societies, 2020 - 4 Variables

    Researchers investigated the variation of land tenure systems across forager societies using the economic defensibility model. The study attempted to explain the variation in tenure systems across 30 hunter-gatherer societies. Using data on defense and sharing of resources among groups, and indicators of resource density, resource predictability, and competition for resources, the researchers were unable to explain the variation. This study highlights the vast range of diversity and complexity of foragers subsistence strategies, and proposes that it may be more telling to conceptualize tenure systems among hunter-gatherer societies as assemblages of multiple property regimes. While there was no overall evidence that environmental variables of resource density and predictability explain variation in tenure systems, researchers did find that increasing population density, and greater competition for resources leads to greater territoriality.

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