Celeste Kidd studied the role of environmental reliability in children’s delayed-gratification decisions. Experimenter reliability was manipulated before the marshmallow task, allowing waiting behavior to be compared after different expectations had been established. Waiting time therefore need not be treated as a context-free measure of a child’s self-control. [ref]
Rational snacking by Celeste Kidd and others. 2013, reliable/unreliable experimenter conditions
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