Home visits occurred weekly from an infant’s birth through four months of age. From five through twelve months of age, PIP alternated biweekly home visits with biweekly group sessions. No information is available on the length of home visits. Group sessions lasted 90 minutes, with a 45-minute developmental play group followed by a 45-minute parent support group. In total, PIP included 32 home visits and 16 group sessions during the year-long intervention. Participants also received monthly calls from the program’s family resource specialist.