Table 3.

Characteristics of psychometric assessments

	N	%
Whether the study had an explicit aim to assess psychometric performance
Yes: Direct assessment study evidence	1253	58.2
No: Indirect assessment study evidence	900	41.8
Total	2153	100.0
Childhood population type
General/healthy	391	18.2
Clinical	1194	55.5
General/healthy and clinical	568	26.4
Total	2153	100.0
Target childhood age group
(1) Infants and preschool children aged <5 years	66	3.1
(2) Pre-adolescents aged 5–11 years	340	15.8
(3) Adolescents aged 12–18 years	441	20.5
(1) and (2)	29	1.3
(2) and (3)	1006	46.7
(1), (2), and (3)	251	11.7
Unclear	20	0.9
Total	2153	100.0
Respondent type
Involved child self-report	1258	58.4
Proxy report only	858	39.9
Unclear	37	1.7
Total	2153	100.0
Administration mode
Self-administered by child or proxy	1367	63.5
Interviewer-administered	509	23.6
Mix of self- and interviewer-administered	82	3.8
Unclear	195	9.1
Total	2153	100.0