Found 821 Documents across 83 Pages (0.008 seconds)
  1. Parental rejection, food deprivation, and personality development: tests of alternative hypothesisRohner, Ronald P. - Ethnology, 1970 - 2 Hypotheses

    This article investigates potential relationships between food deprivation, parental rejection, and personality development. Findings indicate that a series of adult personality characteristics (e.g. self evaluation and emotional responsiveness) are better predicted by parental rejection than by nutritional variables.

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  2. Correlates and consequences of stress in infancyLandauer, Thomas K. - Handbook of Cross-Cultural Human Development, 1981 - 3 Hypotheses

    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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  3. A cross-cultural investigation into the sexual dimorphism of statureWolfe, Linda D. - Sexual Dimorphism in Homo sapiens: A Question of Size, 1982 - 3 Hypotheses

    This article examines height and sexual dimorphism of stature from a sociobiological perspective. Diet, child rearing, and marriage practices are tested as possible factors contributing to height sexual dimorphism of stature. Results provide some support for a nutritional hypotheses, but sexual selection and parental investment are not statistically significant.

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  4. Infantile stimulation and adult stature of human malesLandauer, Thomas K. - American Anthropologist, 1964 - 1 Hypotheses

    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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  5. A Cross-Cultural Nutrition Survey of 118 Societies, Representing the Major Cultural and Geographic Areas of the WorldWhiting, Marjorie Grant - , 1958 - 22 Hypotheses

    Dietary variation has been implicated in population-level heath outcomes such as adult height and infant health. Here the author investigates these relationships in a sample of 118 nonindustrial societies, providing a comparative and quantitative assessment of nutrition and health cross-culturally.

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  6. The effects of mortality, subsistence, and ecology on human adult height and implicationsMigliano, Andrea Bamberg - Current Anthropology, 2012 - 1 Hypotheses

    By better understanding the factors influencing adult height in modern populations, the authors hope to generate a testable hypothesis to determine the factors affecting body size during hominin evolution. The authors employ an exploratory linear regression model to test the effects of mortality, environment, and subsistence strategy on adult height among traditional small scale human societies. They found that mortality rates were the most significant predictor of adult height and that people living in savanna environments are consistently taller.

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  7. Human variation in the shape of the birth canal is significant and geographically structuredBetti, Lia - Proceedings of the Royal Society B, 2018 - 5 Hypotheses

    The 'obstetrical dilemma' postulates that human females evolved a pelvis shape that was a compromise between the needs of bipedal locomotion and the need for a wider pelvic opening. The implication is that the female pelvis should be similar across the world. Researchers examine the size and shape of the birth canal of female individuals in the Goldman and Human Origin datasets. Contrary to the 'obstetrical dilemma,' the findings reveal that there is indeed significant geographical variation in size and shape of the female birth canal. Neutral evolutionary processes, particularly genetic drift, were suggested to be influential in female canal shape whereas the predicted effects of climate on canal diversity were only minimal.

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  8. Menarcheal age and infant stress in humansWhiting, John W.M. - Sex and Behavior, 1965 - 4 Hypotheses

    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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  9. Correlates of monogamy in human groups: tests of some sociobiological hypothesesGray, J. Patrick - Behavior Science Research, 1984 - 7 Hypotheses

    This study re-examines the hypotheses offered by Kleiman (1977) linking monogamy in humans to monogamy in other animals. Of seven hypotheses, only two were weakly supported when using a cross-cultural analysis.

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  10. Premastication: the second arm of infant and young child feeding for health and survival?Pelto, Gretel H. - Maternal and Child Nutrition, 2009 - 1 Hypotheses

    This study asserts that premastication (the pre-chewing of food for infant feeding) has existed as a cross cultural human universal stemming from the post natal immaturity of infant development and their need to have nutritional supplements to breast milk before they develop the molars necessary to consume an adult diet. Hypotheses are informally tested by sampling 119 cultures from the eHRAf database and looking for frequency of premastication occurrence. About one-third with information on infant feeding mention pre-mastication.

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