Parental socioeconomic status (SES) may affect a child?s educational outcomes through a number of pathways, one of which is the child?s health. This essay asks two questions: What evidence exists about the effect of parental SES on child health? And, what evidence exists about the effect of...

Billions of dollars are spent each year on early diagnosis and intervention programs for autism. However, there is little reliable evidence about the effectiveness of these programs. Few studies that evaluate early interventions for autism use random assignment or quasi-experimental designs, and...