Psychology

Bridget, 15, cannot go near her own parents because she fears they are somehow “contaminated.” Rocco, 9, dissolves into tears whenever he tries to leave for school—consumed by anxiety over what could happen once he steps outside. Michelle, 13, spends hours in the shower. These children, along with about one million others, have OCD. This edition of Primetime tracks the treatment of Bridget, Rocco, and Michelle as they attempt to reclaim their lives and overcome the stigma associated with the disorder. Can they subdue a condition that consumes their every waking moment and utterly disrupts their families? Original ABC News broadcast title: Kids Battle Obsessive-Compulsive Disorder. (38 minutes)

Most cases of late-life depression are diagnosed by the patient's own doctor. Doctors are being asked to develop screenings for depression and incorporate these into regular exams.

In this segment, Winifred Gallagher, a science writer and the author of I.D.: How Heredity and Experience Make You Who You Are, contends that the nature and nurture debate is over because nature and nurture work together in creating who we are and who we become.

What we now call an IQ test was originally developed by Alfred Binet at the start of the 20th century as a way to measure developmental delays in schoolchildren. But with the eugenics craze at its peak, Binet's concept was soon appropriated and exploited by those who wished to guarantee the ethnic purity of their society. This program looks at the history of IQ assessment, from Ellis Island evaluations to William Shockley's racist declarations in the 1970s, and reveals how social policies were influenced by the idea that intelligence is set at birth. In addition, Charles Murray, co-author of The Bell Curve: Intelligence and Class Structure in American Life, defends his views.