Variables used in the multilevel analyses (Section V)
Number of siblings — variable representing the number of siblings at home as reported by student
Single parent family — dummy variable representing students from single parent families
Nuclear family — dummy variable representing students from nuclear families
Mixed family — dummy variable representing students from mixed families
Other family type — dummy representing students from other family types not covered by the other three categories
Boys — dummy variable representing male students
School SES — variable representing mean SES of the school, measured by parental education
Atlantic — dummy variable representing provinces of Newfoundland and Labrador, Prince Edward Island, Nova Scotia and New Brunswick
Quebec — dummy variable representing the province of Quebec
Ontario — dummy variable representing the province of Ontario
Prairies — dummy variable representing provinces of Manitoba, Saskatchewan and Alberta
British Columbia — dummy variable representing the province of British Columbia