Due to the increasingly heterogeneous trajectories of aging, gerontology requires theoretical models and empirical methods that can meaningfully, reliably, and precisely describe, explain, and predict causes and effects within the aging process, considering particular contexts and situations. Human behavior occurs in contexts; nevertheless, situational changes are often neglected in context-based behavior research. This article follows the tradition of environmental gerontology research based on Lawton’s Person-Environment-Interaction model and the theoretical developments of recent years. The authors discuss that, despite an explicit time (...) component, current P-E models could be strengthened by focusing on detecting P-E interactions in various everyday situations. Enhancing Lawton’s original formula via a situationally based component not only changes the theoretical perspectives on the interplay between person and environment but also demands new data collection approaches in empirical environmental research. Those approaches are discussed through the example of collecting mobile data with smartphones. Future research should include the situational dimension to investigate the complex nature of person environment interactions. (shrink)

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Durch die Struktur des modernen technischen Handels ist ein ständiger ingenieurwissenschaftlicher Fortschritt vorgezeichnet: Wechselseitige Ergänzung von theoretischer Forschung und praktischer Anwendung; Selektion der effizientesten Verfahrensweise; Akkumulation des bisherigen Wissens und Könnens; Zusammenhang der technischen Teilbereiche; systematische Detailverbesserungen. Diese Prinzipien haben jedoch nur instrumenteilen Charakter. Deshalb ist es immer möglich, daß durch veränderte Prioritäten auch außertechnische Gesichtspunkte stärker zur Geltung gebracht werden.

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