Table 1.

Frequencies of demographic variables by grade, sex, and type of school.

Grade	Sex	Type of School
		Grammar Schools		Non-Academic-Track Secondary School		Schools for Children with Special Needs		Total
		n	%	n	%	n	%	n	%
6th grade	Boys	230	25.4	312	30.1	33	26.8	575	27.8
	Girls	250	27.7	215	20.6	37	30.1	502	24.3
8th grade	Boys	194	21.5	258	24.8	33	26.8	485	23.5
	Girls	230	25.4	255	24.5	20	16.2	505	24.4
Total		904	43.7	1040	50.3	123	5.9	2067 *	100

Note. * Four participants did not specify their sex.