Answer:
Dispositions and situations.
Step-by-step explanation:
The most notable contribution that Fritz Heider made to social psychology was his book The Psychology of Interpersonal Relations (1958), in which, among other ideas and concepts, he explained the "Attribution theory". This theory aimed to describe how people interpret or make attribution about the behavior of others and themselves. According to Heider, people tend to attribute others' behavior either to their disposition (their personality traits, motives, attitudes, level of intelligence) or to their situations (external pressures, social norms, peer pressure, accidents of the environment, random chance, the weather, etc.).