Table 1.

Characteristics of the children participating in the validity study in comparison with the Flemish population

	Belgian households with young children (3 - 7 y) (%)†	Families in the study (%) (n = 297)
Highest education of father & mothers*:
Lower secondary education	19.4	11.3
Higher secondary education	42.1	34.9
Higher education (e.g. bachelor)	21.1	32.3
University degree (e.g. master degree)	17.5	21.5
Income status of families:
Two incomes from employment	72.2	70.8
One incomes from employment	12.7	23.5
No income from employment (e.g. only replacement income(s))	15.1	5.8

* Distribution of educational levels of mothers and fathers in the Flemish population 25-34 years old in 2002 (The Flemish Authority, 2007)[16]

† Panel study of Belgian Households - year of observation 2002 was used as a reference (Child and Family, 2003)[15]