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	Dyadic Analysis	Structural Balance Theory
Campo	Sociology	Sociology
Famiglia	Regression model	Process / pipeline
Anno di origine	1981	1946 (Heider); 1956 (Cartwright & Harary)
Ideatore	Holland & Leinhardt (p1); Kenny (Social Relations Model)	Fritz Heider; formalized by Dorwin Cartwright & Frank Harary
Tipo	Analysis of the dyad as the unit, decomposing relational effects	Theory and graph-theoretic test for tension in signed relationships
Fonte seminale	Holland, P. W., & Leinhardt, S. (1981). An exponential family of probability distributions for directed graphs. Journal of the American Statistical Association, 76(373), 33–50.	Cartwright, D., & Harary, F. (1956). Structural balance: a generalization of Heider's theory. Psychological Review, 63(5), 277–293.
Alias	dyad analysis, dyadic data analysis, social relations model, dyad census	balance theory, Heider balance, signed network balance, structural balance analysis
Correlati	4	5
Sintesi	Dyadic analysis treats the dyad — the pair of actors and the relation between them — as the unit of analysis, separating the relational outcome into what each actor brings to all their relationships and what is unique to the specific pair. It spans the descriptive dyad census of network analysis and statistical frameworks such as Holland and Leinhardt's p1 model and Kenny's Social Relations Model, all of which respect the structural non-independence inherent in relational data.	Structural balance theory analyzes networks whose ties carry a sign — positive for liking, alliance, or trust, negative for hostility or distrust — and asks which configurations are psychologically and socially stable. Originating in Fritz Heider's cognitive balance principle and given a graph-theoretic form by Dorwin Cartwright and Frank Harary in 1956, it predicts that signed networks evolve toward states free of the tension produced by inconsistent triads such as 'the friend of my enemy'.