Answer:
the halo effect.
Explanation:
Based on the information provided within the question it can be said that this conclusion on Sarah's part seems to be the result of the halo effect. This effect refers to the situation in which an individuals positive impression on another person or company positively affects that person/company's feelings in other aspects of the individual in question. Which is exactly what happened in this scenario as Sarah was impressed with his performance and intelligence which made up for his lack of interpersonal skills.