“…The measures for our study included baseline variables (i.e., measured just after the child's birth and typically time invariant), change over Year 1 variables (i.e., change scores formed from Year 1 value – baseline value), and time‐varying variables over Years 1–5. Many of our measures were commonly used scales that were formed from subsets of questions within the Fragile Families Questionnaire (see, e.g., Bronte‐Tinkew et al, ; Knoester et al, ; McLanahan & Carlson, ; Nomaguchi & Johnson, ; Reichman et al, ). Indeed, the FFCW expressly sought to achieve high levels of reliability and validity in its measures by drawing from well‐established questions that were also used in other surveys (e.g., Early Head Start, Early Childhood Longitudinal Study—Birth Cohort).…”