"The results represent 88 per cent of the population of 5-17 year olds in the participating provinces and territories, which represents approximately 40 per cent of 5–17 year olds in Canada," the email said. "From a statistical perspective, this is considered representative."
"By comparison, while research from the United States has been considered among the most comprehensive, the most cited U.S. data capture 8.5 per cent of American eight year olds from 11 participating sites."
