| Chess players, 8990, 98 n
|
| Children
|
| aggression and high-testosterone, 103
|
| boy-girl difference in relationship styles and adult morality, 183184
|
| delinquency, 85, 130131, 212
|
| dominance in, 6263
|
| early sexual activity and criminality, 103
|
| geography, superiority of boys, 52
|
| Headstart program, socializing benefits of, 211
|
| learning disabilities and behavior problems, testosterone levels and, 8687
|
| parenting and, 211212
|
| play area, boys versus girls, 52
|
| "toy truck gene," 57
|
|