Table 1.

Comparison of Depressive Symptoms and Peer Victimization Rates for Full Sample versus the Genetic Sub-Sample, by Grade Level

	Depressive Symptoms -- M (SD)			Peer Victimization -- Proportion
Grade	Full Sample	Genetic Sub- Sample	p-valuea	Full Sample	Genetic Sub- Sample	p-valueb
8	1.41 (1.22)	1.51 (1.22)	.95	.27	.33	<.01
8.5	1.44 (1.23)	1.48 (1.28)	.74	.26	.29	.09
9	1.41 (1.18)	1.45 (1.20)	.82	.17	.22	<.001
9.5	1.47 (1.22)	1.55 (1.29)	.89	.20	.23	.08
10	1.42 (1.15)	1.44 (1.17)	.71	.17	.19	.04
10.5	1.47 (1.17)	1.54 (1.18)	.86	.20	.22	.18
11	1.35 (1.13)	1.39 (1.15)	.82	.13	.15	.06

Note. Genetic sub-sample N=1,475; Full sample N=3,979. Depressive symptoms represent the average level of endorsement of symptoms, on a scale from 0 to 4.

^aResults of t-tests comparing mean level of depressive symptoms for the full sample and the genetic sample are reported for each grade level.

^bResults of z-tests for proportions comparing rates of victimization in the full sample and in the genetic sample are reported for each grade level.