Table 1.

Baseline measures for population characteristics.

Measures	Measuring	Age group	Answer options	Reference
STEPa	Standardized professional’s rating of child's functioning, experienced problems, quality of environment, and needed care	0-16	5-point scale	[23]
CGASb	Professional's rating of child's functioning	0-16	Continuous scale	[13,24]
PEDSc	Parents’ questions and concerns about child's development	0-6	3-point scale and open ended	[25]
SDQd	Parents’ and adolescents’ perspective on psychological attributes	3-16	3-point scale	[26,27]
NOSIKe	Parents’ perspective on parenting stressf	2-13	6-point scale	[28]

^aSTEP: Standaard Taxatie Ernst Problematiek (only available in Dutch).

^bCGAS: Children's Global Assessment Scale.

^cPEDS: Parents’ Evaluation of Developmental Status.

^dSDS: Strengths and Difficulties Questionnaire.

^eNOSIK: Nijmeegse Ouderlijke Stress Index-Korte versie.

^fAs derived from the Parenting Stress Index-Short Form