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A dyad is composed of two people who relate to each other (e.g., romantic partners, two friends, parent-child, or patient-therapist dyads). Interactions between the dyad’s members and/or their characteristics (e.g., personality traits) are called dyadic. Dyadic interactions follow Koffka’s gestalt principle “the whole is other than the sum of its parts,” since a dyad is not only characterized by its members’ attributes but also possesses unique characteristics on the basis of how they interact. Dyad members relate to each other; they show interdependence based on mechanisms such as assortative mating or sharing a common social environment (e.g., Weidmann et al. 2016). However, there are differences between dyads (e.g., in members’ agreement or similarity) and the study of dyadic effects analyses whether such differences contribute to explaining external outcomes. For example,...
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References
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Brauer, K., Proyer, R.T. (2019). Dyadic Effects. In: Zeigler-Hill, V., Shackelford, T. (eds) Encyclopedia of Personality and Individual Differences. Springer, Cham. https://doi.org/10.1007/978-3-319-28099-8_656-1
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DOI: https://doi.org/10.1007/978-3-319-28099-8_656-1
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