Harold Kelley and John W. Thibaut. "Group problem solving." The handbook of social psychology 4 (1969): 1-101; p. 69-70
“Solutions require thinking through a series of interrelated steps or stages, analyzing a number of rules at each point, and always keeping in mind conclusions reached at earlier points.”
Harold Kelley and John W. Thibaut. "Group problem solving." The handbook of social psychology 4 (1969): 1-101; p. 69-70
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John Thibaut 13
American social psychologist 1917–1986Related quotes

Helen Keller: Her Socialist Years (1967)
Context: Some people do not like to think. If one thinks, one must reach conclusions; and conclusions are not always pleasant. They are a thorn in the spirit. But I consider it a priceless gift and a deep responsibility to think.

Source: The Moral Judgment of the Child (1932), Ch. 1 : The Rules of the Game
Context: From the point of view of the practice or application of rules four successive stages can be distinguished.
A first stage of a purely motor and individual character, during which the child handles the marbles at the dictation of his desires and motor habits. This leads to the formation of more or less ritualized schemas, but since play is still purely individual, one can only talk of motor rules and not of truly collective rules.
The second may be called egocentric for the following reasons. This stage begins at the moment when the child receives from outside the example of codified rules, that is to say, some time between the ages of two and five. But though the child imitates this example, he continues to play either by himself without bothering to find play-fellows, or with others, but without trying to win, and therefore without attempting to unify the different ways of playing. In other words, children of this stage, even when they are playing together, play each one "on his own " (everyone can win at once) and without regard for any codification of rules. This dual character, combining imitation of others with a purely individual use of the examples received, we have designated by the term Egocentrism.
A third stage appears between 7 and 8, which we shall call the stage of incipient cooperation. Each player now tries to win, and all, therefore, begin to concern themselves with the question of mutual control and of unification of the rules. But while a certain agreement may be reached in the course of one game, ideas about the rules in general are still rather vague. In other words, children of 7-8, who belong to the same class at school and are therefore constantly playing with each other, give, when they are questioned separately, disparate and often entirely contradictory accounts of the rules observed in playing marbles.
Finally, between the years of 11 and 12, appears a fourth stage, which is that of the codification of rules. Not only is every detail of procedure in the game fixed, but the actual code of rules to be observed is known to the whole society. There is remarkable concordance in the information given by children of 10-12 belonging to the same class at school, when they are questioned on the rules of the game and their possible variations.

Qu'eu cut c'atretan grans sens
Es, qui sap razo gardar,
Com los motz entrebeschar.
"A penas sai comensar", line 19; translation from Alan R. Press Anthology of Troubadour Lyric Poetry (1971) p. 129.
Source: The Ideological Origins of the American Revolution (1967), Chapter V, TRANSFORMATION, p. 173.
Source: Mathematical Thought from Ancient to Modern Times (1972), p. 192.

Statement by Matisse to Tériade; as quoted by Tériade in 'Constance de Fauvisme', in 'Minotaure' (15 October 1936), translated by Jack Flam in Matisse on Art (1995)
1930s

Helen Keller: Her Socialist Years (1967)