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Statistics Canada - Government of Canada
Table D-5
Language and communication skill – Means and standard errors (SE) for communication skill score by child and family characteristics at age 5
  Communication skill score
Mean score
Standard error (SE)
Total (n=3,863)
10.4
0.04
Sex of child (n=3,863)
Female
10.61
0.04
Male
10.2
0.05
Household income level (n=3,863)
Below low income cut-off (LICO) (level 1)
9.92
0.09
LICO to less than 2 times LICO (level 2)
10.32
0.06
Two times LICO to less than 3 times LICO (level 3)
10.6
0.06
Three times LICO or above (level 4)
10.7
0.06
Parent education level (n=3,803)
High school or less
10.11
0.06
More than high school
10.6
0.04
Family structure (n=3,863)
One-parent family
10.1
0.09
Two-parent family
10.5
0.04
Country of birth of parent (n=3,785)
Parent born outside Canada
10.2
0.08
Parent born in Canada
10.5
0.04
Kindergarten attendance (n=3,789)
Not in kindergarten
10.4
0.10
In kindergarten
10.4
0.04
Community size (n=3,863)
Rural (level 1)
10.4
0.07
Under 30,000 (level 2)
10.6
0.08
30,000 to under 100,000 (level 3)
10.4
0.08
100,000 to under 500,000 (level 4)
10.4
0.10
500,000 and over (level 5)
10.3
0.05
Province of residence (n=3,863)
Newfoundland and Labrador
10.6
0.08
Prince Edward Island
10.6
0.12
Nova Scotia
10.5
0.13
New Brunswick
10.4
0.14
Quebec
10.3
0.07
Ontario
10.5
0.06
Manitoba
10.4
0.11
Saskatchewan
10.2
0.12
Alberta
10.2
0.13
British Columbia
10.4
0.10
1. Statistically significant and substantive difference between levels.
2. Statistically significant and substantive differences between level 1 and levels 3, 4; and between level 2 and level 4.
Notes
Statistical significance: p<0.01 for differences between 2 levels of sex of child and parent education level; p<0.008 for differences among 4 levels of household income level (nominal significance level of p<0.05 adjusted for multiple comparisons).
Substantive differences are defined as mean differences of 0.25 of a standard deviation (0.25 SD) or more, as follows: for communication skill score at age 5, 0.25 SD=0.41.
Numbers vary due to missing data for some child and family characteristics.
LICO refers to the low income cut-off.
Data source: Statistics Canada, National Longitudinal Survey of Children and Youth, 2002/2003.
Table source: Statistics Canada, 2006, Readiness to Learn at School Among Five-year-old Children in Canada, Number 4 in the Children and Youth Research Paper Series, catalogue number 89-599-XWE2006004.