Table 1

Fraction of Add Health Sample Reporting Maltreatment

Type of Maltreatment	(1) All	(2) Twin Sample	(3) Fraction of Twin Families with Different Reports	(4) Sibling Sample	(5) Fraction of Sibling Families with Different Reports
Ever left alone	0.397	0.405	0.409	0.394	0.419
Left alone > 10 times	0.082	0.082	0.129	0.071	0.118
Ever basic needs unsatisfied	0.113	0.126	0.161	0.123	0.191
Ever hit, spanked, kicked, etc.	0.292	0.279	0.330	0.292	0.387
Hit, etc. > 10 times	0.063	0.050	0.078	0.056	0.089
Ever sexual abuse	0.048	0.057	0.101	0.051	0.093
Ever any abuse	0.526	0.518	0.412	0.529	0.438
Any abuse using > 10 times cutoffs for physical abuse and being left alone	0.231	0.241	0.272	0.231	0.297
Number of observations	13,509	928		2,216