It Takes Nature and Nurture

A third-grade boy comes home and hands his father his report card. His father looks at it and says, “How do you explain these D’s and F’s? The boy looks up at him and says, “You tell me: Is it nature or nurture?” I was once at a lively, noisy science fair with my own third-grade son, and we were touring some of his classmates efforts. Several experiments involved seeds, soil, and growth curves. One memorable little girl took great pains to explain to us that her seeds had started ...

 The Cultural Bias of the "Growth Curve"

A more flexible construct of normality also has practical applications. As all parents in Western culture know, there is a "normal growth curve" against which all infants are compared when they are brought in for visits to the pediatrician. This standard is used to evaluate babies' growth, and if die baby falls drastically below die curve, pediatricians recommend intervention. But pediatrician Glen Flores, who codirects the Pediatric Latino Clinic at the Boston University School of Medicine, ...