SCIENTIFIC interest in the effects of birth order on later development,
The birth order effect is relatively steady for the first 4-8 years of age gap at about 70% respondents being the firstborn vs secondborn. For larger ...
Larger age gaps associated with negative personality traits. Similar to birth order, birth spacing, i.e., the difference in age between siblings, also ...
Age differences. Birth order effects are strongest when siblings are two to four years apart. With large age gaps, siblings might act more like ...
... that the larger the age gap, the more the younger child is like an only child. If you're an only child, you grow up without birth order effects, so if ...
One starting point might be to see how age gaps affect birth order effects.
Birth order has a great influence on child development.
Birth order reflects disparities in age, size, and power and should
This is important because previous theory (1) suggested that large age gaps make the effects disappear because there is no sibling competition ...
birth order, age-spacing, IQ differences be- tween sibs, and family relations. The data were gathered as part of a larger project on sibling interaction (Pfouts ...