Table 2.

Results of statistical analyses used in Experiment 2, which tested behaviour in diads of male B. splendens held in bare or enriched aquaria of various sizes

	GLMM				ANOVA
	Bouts		Time budget		Bouts		Time budget
Approaches	F	P	F	P	F	P	F	P
Corrected model	2.748	<0.001	1.915	0.008	–	–	–	–
Aquarium size	0.787	0.002	0.310	0.579	5.825	0.002	1.917	0.137
Enrichment	0.021	0.886	0.346	0.558	0.120	0.730	0.277	0.601
Aquarium size × Enrichment	0.624	0.432	0.012	0.914	0.383	0.766	0.054	0.983
Focal fish	3.582	<0.001	2.203	0.011	–	–	–	–
Opponent fish	0.904	0.562	1.618	0.083	–	–	–	–

GLMM corrected model d.f. = 33, 94; individual fish (focal or opponent) d.f. = 15, 94; each additional factor or interaction d.f. = 1, 94. ANOVA aquarium size d.f. = 3, 90; enrichment d.f. = 1, 90; interaction d.f. = 3, 90. P-values < 0.05 are highlighted in bold font.

^*The repeated values here are not a mistake. It’s a coincidence.