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Violence, Teenage Pregnancy, and Life History

Ecological Factors and Their Impact on Strategy-Driven Behavior

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Abstract

Guided by principles of life history strategy development, this study tested the hypothesis that sexual precocity and violence are influenced by sensitivities to local environmental conditions. Two models of strategy development were compared: The first is based on indirect perception of ecological cues through family disruption and the second is based on both direct and indirect perception of ecological stressors. Results showed a moderate correlation between rates of violence and sexual precocity (r = 0.59). Although a model incorporating direct and indirect effects provided a better fit than one based on family mediation alone, significant improvements were made by linking some ecological factors directly to behavior independently of strategy development. The models support the contention that violence and teenage pregnancy are part of an ecologically determined pattern of strategy development and suggest that while the family unit is critical in affecting behavior, individuals’ direct experiences of the environment are also important.

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Notes

  1. 13 of 352 authorities were not included owing to differences in their administration.

  2. We note however that this measure may include households where the father visits, the mother cohabits with a male partner, and/or the children experience stable, mother-only environments.

  3. Teenage conception rates cover ages 15 to 17. Data on pregnancies at earlier ages are confidential and not recorded by local authorities. The actual number of teenage pregnancies in each local authority is therefore likely to be higher than recorded here.

  4. Homicide data were not obtainable at local authority level, so the Victimful Criminality score does not include homicide. Future works should attempt to integrate these figures if they become accessible.

  5. Results of statistical analyses available on request.

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Table 4 Standardized regression weights for the modified model over three samples

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Copping, L.T., Campbell, A. & Muncer, S. Violence, Teenage Pregnancy, and Life History. Hum Nat 24, 137–157 (2013). https://doi.org/10.1007/s12110-013-9163-2

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