Table 2.

Information on selective attrition in the study sample (scores on child- and parent-reported negative parenting composite scale)

	Mean (raw) score at age 9		df	t	p
	Data available at ages 9 & 14	Data unavailable at age 14
Child	6.334	6.488	5409.5	−2.005	0.045
Parent	5.102	5.237	5674.1	−2.109	0.035