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Stich, Jennifer; Spörrle, Matthias (July 2008): I want (my) children to sleep in a safe place: Experimental analysis of human sleeping site preferences from an evolutionary point of view. International Congress of Psychology, 20. - 25. July 2008, Berlin, Germany.


Based on evolutionary assumptions of habitat selection and parental investment, we predicted that adults choose sleeping sites (1) in which children have safer bed positions than the adults themselves and (2) in which own children have safer bed positions than genetically unrelated children. Both hypotheses were confirmed in a questionnaire study (N = 220) with floor plans depicting different sleeping arrangements that were varied according to a 3 (number of children: no vs. one vs. two) x 2 (kinship: own vs. unrelated child) factorial between-subjects design.