Final answer:
Martina Horner's research explores the fear of success and how it can impact individuals' personal and professional growth.
Step-by-step explanation:
Martina Horner's research focused on the fear of success. She found that many individuals, especially women, have a fear of achieving success due to various internal and external factors. This fear can stem from beliefs about how success may interfere with personal relationships, societal expectations, and self-doubt. For example, Horner's research suggests that women may fear that their success will threaten men's comfort. The fear of success can limit individuals' pursuit of their goals and hinder their potential for personal and professional growth.