Final answer:
Understanding that the behavior of others is goal-directed is tied to social knowledge, which is crucial for interpreting social interactions.
Step-by-step explanation:
Understanding that the behavior of others is purposive and goal-directed is an aspect of social knowledge. Social knowledge encompasses our understanding of social norms, rules, and conventions, and it also involves an awareness of the intentions and goals that underlie the actions of others. This understanding is important as we navigate social interactions and relationships. When we consider that the behavior of others is aimed at achieving certain goals, we engage in a form of social cognition that allows us to interpret and predict the actions of those around us.