Table 4. Two-way ANOVA. Main effects of DRD2, DAT1, and COMT genes and effects of interactions between them on physical aggression, anger and hostility in Datoga males.

AQ Scale	Source	DF	SS	MS	F	P
PhA	DAT1	1	1.589	1.589	0.058	0.8101
	DRD2	1	7.252	7.252	0.265	0.6079
	DAT1 × DRD2	1	36.422	36.422	1.330	0.2515
	Error	99	2710.475	27.379
	DAT1	1	64.30	64.30	2.444	0.1215
	COMT	1	0.55	0.55	0.021	0.8853
	DAT1 × COMT	1	1.40	1.40	0.053	0.8182
	Error	90	2368.26	26.31
	DRD2	1	18.25	18.25	0.678	0.4125
	COMT	1	3.70	3.70	0.137	0.7117
	DRD2 × COMT	1	3.10	3.10	0.115	0.7352
	Error	90	2423.40	26.93
Ang	DAT1	1	63.645	63.645	3.8444	0.0528
	DRD2	1	134.045	134.045	8.0969	0.0054
	DAT1 × DRD2	1	6.876	6.876	0.4153	0.5208
	Error	96	1589.284	16.555
	DAT1	1	41.85	41.85	2.312	0.1320
	COMT	1	42.10	42.10	2.326	0.1309
	DAT1 × COMT	1	138.50	138.50	7.651	0.0069
	Error	87	1574.94	18.10
	DRD2	1	179.80	179.80	10.195	0.0020
	COMT	1	10.85	10.85	0.615	0.4349
	DRD2 × COMT	1	4.38	4.38	0.248	0.6197
	Error	87	1534.35	17.64
Hostil	DAT1	1	176.260	176.260	6.856	0.0102
	DRD2	1	221.310	221.310	8.609	0.0042
	DAT1 × DRD2	1	90.753	90.753	3.530	0.0632
	Error	98	2519.379	25.708
	DAT1	1	3.50	3.50	0.136	0.7129
	COMT	1	117.70	117.70	4.584	0.0350
	DAT1 × COMT	1	157.73	157.73	6.143	0.0151
	Error	89	2285.36	25.68
	DRD2	1	158.38	158.38	6.100	0.0154
	COMT	1	12.05	12.05	0.464	0.4975
	DRD2 × COMT	1	4.21	4.21	0.162	0.6881
	Error	89	2310.91	25.97

PhA – physical aggression, Ang – anger, Hostil – hostility, DF – degrees of freedom, SS – sum of squares, MS – mean square, F – F-test, P – probability.