First, to predict a person’s response to a given situation – even a person whom one knows very well and has been able to observe in a wide variety of previous situations – one usually must know or correctly infer the details of that situation, in particular, those features of the context that help determine the relative attractiveness of the available response alternatives. Second, beyond knowing such objective features of the situation, one must discern the meaning of the situation from the private perspective of the actor.
