Attendance at school could have been either full time or part time.

Note: Data quality - Attendance at school

A new version of the school attendance question was used in the 2006 Census. Studies on data certification showed important variations with previous censuses and with the Labour Force Survey. It appears that the 2006 Census could have overestimated the school attendance for the population aged 45 years or over.

We recommend users of the attendance at school variable interpret the 2006 Census results with caution.

For more information on factors that may explain such variances in census data, such as response errors and processing errors, please refer to the 2006 Census Dictionary, Appendix B: Data quality, sampling and weighting, confidentiality and random rounding.

More information is available in the Education Reference Guide, 2006 Census, catalogue number 97-560-GWE2006003.

'Highest certificate, diploma or degree' refers to the highest certificate, diploma or degree completed based on a hierarchy which is generally related to the amount of time spent 'in-class'. For postsecondary completers, a university education is considered to be a higher level of schooling than a college education, while a college education is considered to be a higher level of education than in the trades. Although some trades requirements may take as long or longer to complete than a given college or university program, the majority of time is spent in on-the-job paid training and less time is spent in the classroom.

Census questions relating to education changed substantially between 2001 and 2006, principally to reflect developments in Canada's education system. These changes improved the quality of data and provided more precise information on the level of educational attainment as well as fields of study.

However, users should be aware that changes to the education portion of the 2006 Census questionnaire have affected the comparability of some 2006 Census data with data from previous censuses. More information on the historical comparability of specific categories of 'Highest certificate, diploma or degree' is available in the Education Reference Guide, 2006 Census, catalogue number 97-560-GWE2006003.

'High school certificate or equivalent' includes persons who have graduated from a secondary school or equivalent. Excludes persons with a postsecondary certificate, diploma or degree. Examples of postsecondary institutions include community colleges, institutes of technology, CEGEPs, private trade schools, private business colleges, schools of nursing and universities.

'College, CEGEP or other non-university certificate or diploma' replaces the category 'Other non university certificate or diploma' in previous censuses. This category includes accreditation by non degree-granting institutions such as community colleges, CEGEPs, private business colleges and technical institutes.

The overall quality of the 'Highest certificate, diploma or degree' variable from the 2006 Census is acceptable. However, users of the 'University certificate or diploma below the bachelor level' category should know that an unexpected growth in this category was noted compared to the 2001 Census.

In fact, in the 2001 Census, 2.5% of respondents aged 15 years or over declared such a diploma, compared to 4.4% in 2006, representing 89% growth. This phenomenon was not found in other sources like the Labour Force Survey.

We recommend users interpret the 2006 Census results for this category with caution.

For more information on factors that may explain such variances in census data, such as response errors and processing errors, please refer to the 2006 Census Dictionary, Appendix B: Data quality, sampling and weighting, confidentiality and random rounding.

More information is available in the Education Reference Guide, 2006 Census, catalogue number 97-560-GWE2006003.

Questions pertaining to university degrees attained in 2006 (for example bachelor's degrees or master's degrees) were similar to those asked in 2001. Data for the university categories (bachelor's degree through to earned doctorate) are comparable over time.