Understanding Factors of Attraction in Relationships

In the context of attraction and relationships, social psychologists have identified several key factors that influence interpersonal attraction. One such factor is the concept of similarity, which suggests that people are often drawn to others who share similar attributes, interests, or backgrounds. Research indicates that this similarity can enhance feelings of attraction and compatibility between individuals.

Given this information, consider the following scenario: Sarah and Tom, who have been friends since childhood, develop romantic feelings for each other as they discover shared interests in hobbies and career aspirations. This shared background contributes significantly to their relationship development.

Based on the principles of attraction detailed above, which factor is most likely to have played a crucial role in Sarah and Tom's relationship?