A phrase eldest daughters often say well into adulthood is “I can handle it on my own,” which displays a fierce sense of ...

In 1964, Alfred Adler developed a theory on the importance of birth order on personality development. In his theory, he claims that although children may be born into the same household ...

Early in the 20th century, the Austrian psychiatrist Alfred Adler introduced the idea that birth order could impact development and personality. Adler, the founder of individual psychology, was ...