Birth Order and Psychological Needs

The Only-son, eldest-son, second-son, and youngest-son groups were, using z-score method, compared each other on EPPS needs. Each group, consisting of 32 university students, was similar with other three group on age, family socioeconomic status, father's education and the degree of urborization of domicile. The result of comparisons rendered mild support to the findings of the present author's previous study, contradicted and supported respectively the findings obtained in the United States about the eldest-son and the only son.