Table 1.

Descriptive statistics

	Mothers				Fathers
	Mean	SD	Range	Alpha	Mean	SD	Range	Alpha	T-test
PDH at 36 months	47.42	14.679	69	0.905	44.64	12.310	58	0.877	1.945†
PDH at 48 months	50.21	14.458	65	0.907	43.41	12.796	64	0.877	3.366**
PDH at 60 months	49.87	13.999	70	0.880	45.05	13.655	55	0.908	3.462**
SCL at 36 months	24.31	18.461	92	0.839	17.15	15.876	85	0.854	3.381**
DAS at 36 months	107.26	24.162	118	0.9	110.25	19.377	99	0.822	−1.047
P–C pleasure at 36 months	1.55	0.648	3.50	–	1.62	0.681	3.17	–	−0.432
Education	14.34	2.402	10	–	13.97	2.725	14	–	1.577

PDH, parenting daily hassles; SCL, Symptom Checklist; DAS, Dyadic Adjustment Scale.

^†Note: P < 0.07,

^*P < 0.05,

^**P < 0.001.