The trait of Conscientiousness is one of the traits most consistently linked to important life events and outcomes, like health, wealth, and relationship successes. Conscientiousness refers to a broad number of constructs that describe individual differences in the propensity to be self-controlled, responsible to others, hard-working, organized, and rule-abiding.

The lab is currently working on creating new measures of Conscientiousness that better assess the subcomponents that make up Conscientiousness, in order to track changes in Conscientiousness and improve the predictive validity of life outcomes.

The PMaD lab uses the Promoting Character Development (PCD) study to Conscientiousness development from multiple perspectives. PCD is a multi-method longitudinal study that examines how best to measure the development of personality during adolescence. The study focuses on the development of conscientiousness, a key component related to school and occupational success, relationship quality, and physical health. The participants of the PCD study are students enrolled at KIPP Academy in St. Louis. These fifth to eighth graders are being assessed in six different waves throughout each academic year. The main aim of the PCD study is identify whether different assessments of personality (self, peer, teacher, daily diary and EAR) provide similar estimates of personality change. Additional questions include: Do school experiences impact development? Are certain assessment techniques better at predicting academic outcomes? Do transition periods promote greater personality development?