Life history theory (LHT) is a mid-level theory from evolutionary biology. LHT, adapted to humans, assumes that individuals can be placed along a single continuum of LH strategies referred to as the slow-to-fast LH continuum: faster life history strategists score higher on mating effort and lower on somatic and parental effort. In the present study we examine the hypothesis that worldview and coping strategies are mediators between somatic and parental effort (SPE) and current perceived stress. 226 participants completed a set of instruments: Mini-K, the World Assumptions Scale, Brief COPE, and the Perceived Stress Scale. In order to test the hypotheses about mediators, Structural Equation Modeling (SEM) was used. The results from the current study showed that individuals allocating their own resources to SPE experienced lower current stress, and felt positive about the benevolence and meaningfulness of the world as well as the worthiness of the self. A more complex linkage was also revealed: individuals displaying SPE endorsed stronger beliefs about self-worth, which in turn was associated with a lower tendency to use disengagement coping and which again translated into a lower level of perceived stress. Furthermore, females investing in SPE maintained a higher level of belief in the meaningfulness of the world, which translated into a higher tendency to use external support for coping.

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The authors analyze the satisfaction with life of young people in relation to the perception of the parenting techniques. 524 school and university students from the Podkarpacie region aged 13-22 were surveyed using the Inventory of Parental Discipline Techniques (IPDT) by Gała and the Student's Life Satisfaction Scale (SLSS) by Huebner. The dominant technique used by parents is that of introduction to principles. Fathers use the technique of indifference more often than mothers. Mothers use the technique of power assertion more frequently as their children grow in age. Parenting techniques have a significant relationship with the level of life satisfaction of the adolescents and young adults, but at different stages of development different parental techniques are associated with their life satisfaction.