Measuring Early Life Adversity across the Lifespan
Exposure to adversity in childhood is associated with elevations in numerous physical and mental health outcomes across the life-course. The biological embedding of early experience during periods of developmental plasticity is one pathway that contributes to these associations. While a rich literature documents associations between early adversity and key outcomes in childhood and early adulthood, little research investigates the impact of adversity on processes of health and wellbeing in later life. This lack of research impairs progress as the strong theoretical prediction of early embedding models is that the impact of early adversity will be observed throughout the lifespan, even into late life. Recently articulated dimensional models (e.g., McLaughlin et al., 2021) specify mechanistic pathways linking different dimensions of adversity to health and wellbeing outcomes later in life. While findings from existing studies testing these dimensions have provided promising preliminary support for these models, less agreement exists about how to measure the experiences that comprise each dimension. Here we review existing approaches to measuring two dimensions of adversity: threat and deprivation. We recommend specific measures for measuring these constructs and, when possible, document when the same measure can be used by different reporters and across the lifespan to maximize the utility with which these recommendations can be applied. Through this approach we hope to stimulate progress in understanding how particular dimensions of early adversity exposure contribute to outcomes in late life.