Marital satisfaction was assessed using the Marital Adjustment Test (MAT; Locke & Wallace, 1959). The MAT is a widely used measure of marital satisfaction. It has been found to discriminate distressed from non-distressed marriages in numerous studies and has well-established concurrent and predictive validities (O'Leary & Turkewitz, 1978). Scores on the MAT for all three assessments for the entire sample ranged from 7–149 (mothers: M=100.87, SD=26.44 at 12 months; M=99.58, SD=28.93 at 24 months; M=99.56, SD=30.07 at 36 months; fathers: M=102.33, SD=24.08 at 12 months; M=103.56, SD=25.84 at 24 months; M=103.25, SD=27.96 at 36 months). Internal consistency (Cronbach's alpha) in the present study was .77 for mothers and .72 for fathers.
