What is a primary reason Adler's theory suggests middle children tend to be ambitious?

Who is credited with first developing the birth order theory in the 1920s?

A study of 377,000 high school students found that firstborns tended to be more honest and dominant, but had what a potential disadvantage?

What is a key motivator for the youngest child, according to the birth order theory presented?

A study cited in the video found a correlation between birth order and IQ. Which group tended to show higher performance on intelligence tests?

What common difficulty did the video associate with only children?

A major study of 20,000 adults from the US, UK, and Germany found that birth order had no significant effect on which of the following personality traits?

According to Adler's theory, middle children often set unreasonably high goals for themselves. What positive outcome does the video suggest can result from this?

The video concludes by stating that birth order research often has inaccuracies. What does it suggest is a much more important factor in shaping an individual's life?

According to Alfred Adler's original theory, which child is most likely to be conservative, power-oriented, and predisposed to leadership?