Plan of analysis for the study "Maternal Hair Cortisol Concentration Trajectories throughout Pregnancy and Adverse Childhood Experiences"

This document is a preregistered analysis plan for the study “Maternal Hair Cortisol Concentration Trajectories throughout Pregnancy and Adverse Childhood Experiences.” It specifies the research questions, hypotheses, variable definitions, and planned statistical analyses. The plan was made publicly available before the authors received access to the data and before any analyses were conducted, in order to increase transparency.