Longscan: A consortium for longitudinal studies of maltreatment and the life course of children

The National Research Council (1993) has issued an urgent call for theory-based, longitudinal research to examine the antecedents and consequences of child maltreatment. Many of the concerns raised by the National Research Council are addressed by LONGSCAN (LONGitudinal Studies of Child Abuse and Neglect), a consortium including a coordinating center and five independent prospective longitudinal investigations sharing common protocols for data collection, entry, and management. The children in the five investigations vary by their level of risk, ranging from a community sample with no identified risk beyond low income status, to children placed in foster care. The longitudinal study has been designed with six age-specific data collection points extending from 4 through 20 years of age. The conceptual model, organization, and analytic strategy for LONGSCAN are described.