The study used data from a longitudinal study known the Sussex Journey to Parenthood Study
(UK), which studied the transition to parenthood from pregnancy to postpartum. Assessments were used three separate times to measure factors such as the infant’s cognitive, language and motor development and any indicators of physical and psychological problems. Parents also came in for a verbal interview when infants were 5 months old. The design was great, it involved physical examination, assessments and parental interviews making it very well rounded.
