Table 4.

Pearson chi-square tests for categorical variables of higher level of hierarchical analysis’s clusters 2 d.f., *p ≤ 0.05, **p ≤ 0.01, ***p ≤ 0.001.

	A	B	C	Results (χ2, p value)
Kittens vs. Adults
Kittens				χ2 = 18.647 p ≤ 0.001
Observed (% of group)	25 (30.1%)	11 (18.6%)	2 (2.9%)
Expected	15.0	10.7	12.3
Standardised residual	3.66***	0.13	− 3.95***
Standardised residual—p value	0.0003	0.8972	p ≤ 0.001
Adults
Observed	58 (69.9%)	48 (81.4%)	66 (97.1%)
Expected	68.0	48.3	55.7
Standardised residual	− 3.66***	− 0.13	3.95***
Standardised residual—p value	0.0003	0.8972	p ≤ 0.001
Cats in original dyads vs. Not in dyad
In dyad				χ2 = 19.126 p ≤ 0.001
Observed	72 (86.7%)	32 (54.2%)	44 (64.7%)
Expected	58.5	41.6	47.9
Standardised residual	4.18***	− 3.22**	− 1.27
Standardised residual—p value	p ≤ 0.001	0.0013	0.2046
Not in dyad
Observed	11 (13.3%)	27 (45.8%)	24 (35.3%)
Expected	24.5	17.4	20.1
Standardised residual	− 4.18***	3.22**	1.27
Standardised residual—p value	p ≤ 0.001	0.0013	0.2046
Playful vs. Intermediate vs. Agonistic interaction
Playful				χ2 = 74.561 p ≤ 0.001
Observed	69 (83.1%)	34 (57.6%)	15 (22.1%)
Expected	46.6	33.2	38.2
Standardised residual	6.36***	0.26	− 6.90***
Standardised residual—p value	p ≤ 0.001	0.7931	p ≤ 0.001
Intermediate
Observed	7 (8.4%)	15 (25.4%)	10 (14.7%)
Expected	12.6	9.0	10.4
Standardised residual	− 2.22*	2.57*	− 0.15
Standardised residual—p value	0.0266	0.0103	0.8819
Agonistic
Observed	7 (8.4%)	10 (16.9%)	43 (63.2%)
Expected	23.7	16.9	19.4
Standardised residual	− 5.22***	− 2.33*	7.69***
Standardised residual—p value	p ≤ 0.001	0.0198	p ≤ 0.001
Total (N)	83	59	68

Significant values are in bold.