Different stability of social-communication problems and negative demanding behaviour from infancy to toddlerhood in a large Dutch population sample

Table 6 Pearson correlation matrix of USQ and SBQ factors ( N = 4,237)

Factors USQ (T1)	Factors SBQ (T2)
Factors USQ (T1)	1 Language problems	2 Negative emotionality	3 ADHD- problems	4 Deviant play behaviour	5 Demanding behaviour	6 Deviant affective behaviour	7 Com. interact. problems	8 Sleep problems
1 Deviant communication	0.35 ^*	0.09^*	0.10^*	0.15^*	0.05	0.17^*	0.25^*	-0.00
2 Negative emotionality	0.07^*	0.44 ^*	0.32 ^*	0.12^*	0.07^*	0.11^*	0.14^*	0.15^*
3 Deviant reactive behaviour	0.00	0.02	-0.01	0.05^*	0.00	0.03	0.02	0.01
4 Deviant play behaviour	0.12^*	0.04	0.08^*	0.11^*	0.04	0.10^*	0.14^*	-0.02
5 Demanding behaviour	0.04	0.10^*	0.10^*	0.03	0.19^*	0.04	0.05^*	0.04
6 Social anxiety/inhibition	0.05^*	0.12^*	0.05^*	0.06^*	0.03	0.05^*	0.04	0.07^*
7 Advanced social interaction problems	0.23^*	0.09^*	0.13^*	0.23^*	0.03	0.19^*	0.34 ^*	0.02
8 Basic social interaction problems	0.14^*	0.19^*	0.20^*	0.15^*	0.06^*	0.13^*	0.22^*	0.09^*
9 Sleep problems	0.06^*	0.17^*	0.12^*	0.09^*	0.06^*	0.09^*	0.13^*	0.31

*Most correlations (r) were small, but significant (p ≤ 0.001). The highest correlations were found between deviant communication (USQ) and language problems (SBQ); negative emotionality (USQ) and negative emotionality / attention-deficit/hyperactivity problems (SBQ); advanced social interaction problems (USQ) and communication and interaction problems (SBQ); sleep problems (USQ) and sleep problems (SBQ).

ISSN: 1753-2000