Table 3.

Predictors of discontinuity in categorical and perspectivist thinking.

	Step
	1			2
	F	p	ηp2	F	p	ηp2
Categorical thinking at 5 months
Age (birth vs. 5 months)	11.83	<0.001	0.114	0.15	0.705	0.002
Birth status (preterm vs. term)	0.32	0.573	0.003	0.44	0.510	0.005
Age × birth status	3.77	0.055	0.039	3.46	0.066	0.037
Apgar at 5 min				1.07	0.303	0.012
Number of siblings				1.86	0.177	0.020
Mother living with partner				0.86	0.357	0.010
Perspectivist thinking at 5 months
Age (birth vs. 5 months)	16.20	<0.001	0.210	2.83	0.098	0.046
Birth status (preterm vs. term)	2.19	0.144	0.035	0.10	0.752	0.002
Age × birth status	0.84	0.364	0.014	0.94	0.338	0.016
Highest maternal qualification				1.57	0.215	0.026
Antenatal class attendance				1.27	0.265	0.021
Breastfeeding at birth				2.85	0.097	0.047

Note. Data were missing for 11 dyads for Apgar scores at 5 min so there was a final sample of 39 preterm and 55 term infants for the categorical thinking analyses. Therefore, degrees of freedom for step 1 were (1, 92) and for step 2 were (1, 89). Data were missing for 1 dyad for highest maternal qualification, 1 for antenatal class attendance and 1 for breastfeeding at birth so there was a final sample of 40 preterm and 62 term infants for the perspectivist thinking analyses. Therefore, degrees of freedom for step 1 were (1, 100) and for step 2 were (1, 97).