Answer:
"he only helped because he wanted to impress susan" is an not example of internal attribution.
Step-by-step explanation:
Internal Attribution is the process of assigning the cause of a given event to some internal or dispositional characteristic, his or another person's, that is to relate to the internal disposition of the individual in question.
In the phrase "he only helped because he wanted to impress susan" does not show a process attributed to an internal characteristic.