Who is attributed with developing the Principles of feminine psychology?

The development of the Principles of feminine psychology is attributed to Karen Horney. She was a prominent psychoanalyst in the early to mid-20th century, known for her critiques of traditional Freudian psychology and her contributions toward understanding women's psychological development. Horney argued that societal and cultural factors significantly influence the mental health of women. She emphasized the importance of addressing the disparities in gender experiences and the ways these differences affect identity, relationships, and psychological well-being.

Her work included the idea of "womb envy," a counterpoint to Freud's notion of penis envy, which highlighted that men may experience feelings of inadequacy due to women's ability to bear children. Through her contributions, Horney laid the groundwork for modern feminist psychology, advocating for a psychological approach that takes into account the unique experiences of women in society. This focus on social and cultural context is a hallmark of her principles, distinguishing her work in the field.