Answer:
It uses both qualitative and quantitative data
Explanation:
Daniel Levinson's theory attempts to understand adulthood based on seasons. These seasons are analyzed trough quantitative elements such as age period and the number of people in that group, but especially in qualitative elements. This means that in order to understand these seasons, Levinson argues that people's choices, leisure, friendship, and his point of view about the world are also important to understand the season of life he or she is living in.