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  • Surveys and statistical programs – Documentation: 12-539-X
    Description:

    This document brings together guidelines and checklists on many issues that need to be considered in the pursuit of quality objectives in the execution of statistical activities. Its focus is on how to assure quality through effective and appropriate design or redesign of a statistical project or program from inception through to data evaluation, dissemination and documentation. These guidelines draw on the collective knowledge and experience of many Statistics Canada employees. It is expected that Quality Guidelines will be useful to staff engaged in the planning and design of surveys and other statistical projects, as well as to those who evaluate and analyze the outputs of these projects.

    Release date: 2019-12-04

  • Stats in brief: 11-629-X2019004
    Description:

    This video explains the Necessity and Proportionality Framework, which assesses data sensitivity and gathering in a more integrated way while ensuring the data needs of Canadians are met.

    Release date: 2019-11-26

  • 13C0015
    Description:

    This annual product characterizes the Canadian population by income and demographics. Data may be requested by gender for marital status, age groups, counts by single year of age, sources of income, income distribution by age group, taxes paid, selected deductions and benefits, median employment income, median total income and median after-tax income, plus national and provincial indices of median total income. The statistics are derived primarily from the annual tax file provided by the Canada Revenue Agency.

    Data for some geographic areas are available starting from 1986. The latest data (2017) can be requested for Canada, provinces and territories, federal electoral districts, economic regions, census divisions, census metropolitan areas, census agglomerations, census tracts and certain postal geographies.

    Release date: 2017-07-12

  • 17C0011
    Description:

    Annual information is available on the RRSP contribution limit (RRSP room) available to Canadians for a particular tax year. Data may be requested for people with room by new room, unused room and total room. Information is available for the number of taxfilers with new room, their average age, their median earned income, the average dollar amount of new room and the percentage of new room greater than several predetermined dollar levels.

    Data for some geographic areas are available since 1993. The latest data (2017 Room) can be requested for selected levels of postal and census geographies. The statistics are derived from a preliminary version of the annual taxfile provided by the Canada Revenue Agency.

    Release date: 2017-02-24

  • 13C0014
    Description:

    Annual data provide an overview of individuals who reported donations to registered charitable organizations on line 340 of their tax return. Data include the total number of donors, their average age, their total and median donations, their median total income, the average donation by age group and the percentage of donors by sex, age group or income group.

    Data for some geographic areas are available since 1990. The latest data (2017) can be requested for selected levels of postal and census geographies. The statistics are derived from a preliminary version of the annual taxfile provided by the Canada Revenue Agency.

    Release date: 2017-02-22

  • 71C0018
    Description:

    The Labour Income Profile shows the number of men and women with labour income and the total amount of each income type, including wages, salaries and commissions, self-employment income and Employment Insurance (EI) benefits.

    Median dollar figures are provided for total income and employment income. Medians are also expressed as a percentage of the figure for the province/territory and for Canada. The statistics are derived primarily from the annual tax file provided by the Canada Revenue Agency.

    Data for some geographic areas are available since 1986. The latest data (2014) can be requested for Canada, provinces and territories, federal electoral districts, economic regions, census divisions, census metropolitan areas, census agglomerations, census tracts and certain postal geographies.

    Release date: 2016-07-14

  • Public use microdata: 81M0011X
    Description:

    This survey was designed to determine such factors as: the extent to which graduates of postsecondary programs had been successful in obtaining employment since graduation; the relationship between the graduates' programs of study and the employment subsequently obtained; the graduates' job and career satisfaction; the rates of under-employment and unemployment; the type of employment obtained related to career expectations and qualification requirements; and the influence of postsecondary education on occupational achievement. The information is directed towards policy makers, researchers, educators, employers and young adults-interested in postsecondary education and the transition from school to work of trade/vocational, college and university graduates.

    Release date: 2015-01-12

  • Articles and reports: 12-001-X201200211752
    Description:

    Coca is a native bush from the Amazon rainforest from which cocaine, an illegal alkaloid, is extracted. Asking farmers about the extent of their coca cultivation areas is considered a sensitive question in remote coca growing regions in Peru. As a consequence, farmers tend not to participate in surveys, do not respond to the sensitive question(s), or underreport their individual coca cultivation areas. There is a political and policy concern in accurately and reliably measuring coca growing areas, therefore survey methodologists need to determine how to encourage response and truthful reporting of sensitive questions related to coca growing. Specific survey strategies applied in our case study included establishment of trust with farmers, confidentiality assurance, matching interviewer-respondent characteristics, changing the format of the sensitive question(s), and non enforcement of absolute isolation of respondents during the survey. The survey results were validated using satellite data. They suggest that farmers tend to underreport their coca areas to 35 to 40% of their true extent.

    Release date: 2012-12-19

  • Public use microdata: 56M0003X
    Description:

    The Canadian Internet Use Survey (CIUS) measures the extent and scope to which individual Canadians use the Internet. Survey content includes the location of use (e.g., at home, at work), the frequency and intensity of use, the specific uses of the Internet from the home, the purchase of products and services (electronic commerce), and other issues related to Internet use (such as concerns over privacy). This content is supplemented by information on individual and household characteristics (e.g., age, income, education, family type) and some geographic detail (e.g. province, urban/rural, and Census Metropolitan Area).

    Release date: 2012-11-23

  • Public use microdata: 89M0017X
    Description:

    The public use microdata file from the 2010 Canada Survey of Giving, Volunteering and Participating is now available. This file contains information collected from nearly 15,000 respondents aged 15 and over residing in private households in the provinces.The public use microdata file provides provincial-level information about the ways in which Canadians donate money and in-kind gifts to charitable and nonprofit organizations; volunteer their time to these organizations; provide help directly to others. Socio-demographic, income and labour force data are also included on the file.

    Release date: 2012-05-04
Data (10)

Data (10) ((10 results))

  • Public use microdata: 81M0011X
    Description:

    This survey was designed to determine such factors as: the extent to which graduates of postsecondary programs had been successful in obtaining employment since graduation; the relationship between the graduates' programs of study and the employment subsequently obtained; the graduates' job and career satisfaction; the rates of under-employment and unemployment; the type of employment obtained related to career expectations and qualification requirements; and the influence of postsecondary education on occupational achievement. The information is directed towards policy makers, researchers, educators, employers and young adults-interested in postsecondary education and the transition from school to work of trade/vocational, college and university graduates.

    Release date: 2015-01-12

  • Public use microdata: 56M0003X
    Description:

    The Canadian Internet Use Survey (CIUS) measures the extent and scope to which individual Canadians use the Internet. Survey content includes the location of use (e.g., at home, at work), the frequency and intensity of use, the specific uses of the Internet from the home, the purchase of products and services (electronic commerce), and other issues related to Internet use (such as concerns over privacy). This content is supplemented by information on individual and household characteristics (e.g., age, income, education, family type) and some geographic detail (e.g. province, urban/rural, and Census Metropolitan Area).

    Release date: 2012-11-23

  • Public use microdata: 89M0017X
    Description:

    The public use microdata file from the 2010 Canada Survey of Giving, Volunteering and Participating is now available. This file contains information collected from nearly 15,000 respondents aged 15 and over residing in private households in the provinces.The public use microdata file provides provincial-level information about the ways in which Canadians donate money and in-kind gifts to charitable and nonprofit organizations; volunteer their time to these organizations; provide help directly to others. Socio-demographic, income and labour force data are also included on the file.

    Release date: 2012-05-04

  • Public use microdata: 82M0011X
    Description:

    The main objective of the 2002 Youth Smoking Survey (YSS) is to provide current information on the smoking behaviour of students in grades 5 to 9 (in Quebec primary school grades 5 and 6 and secondary school grades 1 to 3), and to measure changes that occurred since the last time the survey was conducted in 1994. Additionally, the 2002 survey collected basic data on alcohol and drug use by students in grades 7 to 9 (in Quebec secondary 1 to 3). Results of the Youth Smoking Survey will help with the evaluation of anti-smoking and anti-drug use programs, as well as with the development of new programs.

    Release date: 2004-07-14

  • Public use microdata: 81M0013X
    Description:

    The Adult Education and Training Survey (AETS) is Canada's most comprehensive source of data on individual participation in formal adult education and training. It is the only Canadian survey to collect detailed information about the skill development efforts of the entire adult Canadian population. The AETS provides information about the main subject of training activities, their provider, duration and the sources and types of support for training. Furthermore, the AETS allows for the examination of the socio-economic and demographic profiles of both training participants and non-participants. This survey also identifies barriers faced by individuals who wish to take some form of training but cannot. The AETS was administered three times during the 1990s, in 1992, 1994 and 1998, as a supplement to the Labour Force Survey (LFS).

    The content of the AETS was revised to take into account recommendations coming from consultation exercises. As a result, more than half of the 2003 survey is made up of new questions and the target population has been modified.

    The main objectives are:1) To measure the incidence and intensity of adults' participation in job-related formal training.2) To profile employer support to job-related formal training.3) To analyze the aspects of job-related training activities such as: training provider, expenses, financial support, motivations, outcomes and difficulties experienced while training.4) To identify the barriers preventing individuals from participating in the job-related formal training they want or need to take.5) To identify reasons explaining adults' lack of participation and of interest in job-related formal training.6) To relate adults' current participation patterns to their past involvement in and plans about future participation in job-related training.7) To measure the incidence and frequency of adults' participation in job-related informal training.8) To examine the interactions between participation in formal and informal job-related training.

    The population covered by the AETS consists of Canadians 25 years of age and older. This is a change from the population previously targeted by the AETS, which consisted of Canadians aged 17 years of age and older. A primary consideration for this change was the practical difficulties in applying the definition of adult education to individuals in the 17 to 24 years of age group. By definition, adult education excludes students who are still involved in their first or initial stage of schooling. As previous AETS did not precisely identify students still in their initial stage of schooling, analyses using these data had to rely on an ad hoc definition of adult learners. According to this definition, individuals aged 17 to 24 who were not in one of the following situations were excluded from the analysis: full-time students subsidized by an employer and full-time students over 19 enrolled in elementary or secondary programs.

    Release date: 2004-05-27

  • Public use microdata: 89M0015X
    Description:

    The National Longitudinal Survey of Children and Youth (NLSCY), developed jointly by Human Resources Development Canada and Statistics Canada, is a comprehensive survey which follows the development of children in Canada and paints a picture of their lives. The survey monitors children's development and measures the incidence of various factors that influence their development, both positively and negatively.

    Release date: 2001-05-30

  • Table: 61F0090X
    Description:

    The Survey of Usage by Businesses of the Social Insurance Number was conducted during June and July 2000 on behalf of Human Resources Development Canada. The survey asked companies with two or more employees how they used the Social Insurance Number of their employees, contract workers and clients, and how they used the SIN card. This electronic publication presents 7 selected detailed tables in support of The daily (cat. no. 11-001-XIE) release February 15, along with methods and concepts pertaining to the release.

    Release date: 2001-02-15

  • Public use microdata: 82M0010X
    Description:

    The National Population Health Survey (NPHS) program is designed to collect information related to the health of the Canadian population. The first cycle of data collection began in 1994. The institutional component includes long-term residents (expected to stay longer than six months) in health care facilities with four or more beds in Canada with the principal exclusion of the Yukon and the Northwest Teritories. The document has been produced to facilitate the manipulation of the 1996-1997 microdata file containing survey results. The main variables include: demography, health status, chronic conditions, restriction of activity, socio-demographic, and others.

    Release date: 2000-08-02

  • Public use microdata: 82F0001X
    Description:

    The National Population Health Survey (NPHS) uses the Labour Force Survey sampling frame to draw a sample of approximately 22,000 households. The sample is distributed over four quarterly collection periods. In each household, some limited information is collected from all household members and one person, aged 12 years and over, in each household is randomly selected for a more in-depth interview.

    The questionnaire includes content related to health status, use of health services, determinants of health and a range of demographic and economic information. For example, the health status information includes self-perception of health, a health status index, chronic conditions, and activity restrictions. The use of health services is probed through visits to health care providers, both traditional and non-traditional, and the use of drugs and other medications. Health determinants include smoking, alcohol use, physical activity and in the first survey, emphasis has been placed on the collection of selected psycho-social factors that may influence health, such as stress, self-esteem and social support. The demographic and economic information includes age, sex, education, ethnicity, household income and labour force status.

    Release date: 1995-11-21

  • Public use microdata: 82M0008X
    Description:

    The survey, begun in February 1994, monitors the smoking patterns of Canadians over a 12 month period and to measure any changes in smoking resulting from the decrease in taxes in cigarettes which took place in February 1994 in some provinces. It is related to MDF 82M0006. Updates are included in the microdata file price. A guide for this microdata file is available.

    Release date: 1995-06-08
Analysis (45)

Analysis (45) (0 to 10 of 45 results)

  • Stats in brief: 11-629-X2019004
    Description:

    This video explains the Necessity and Proportionality Framework, which assesses data sensitivity and gathering in a more integrated way while ensuring the data needs of Canadians are met.

    Release date: 2019-11-26

  • Articles and reports: 12-001-X201200211752
    Description:

    Coca is a native bush from the Amazon rainforest from which cocaine, an illegal alkaloid, is extracted. Asking farmers about the extent of their coca cultivation areas is considered a sensitive question in remote coca growing regions in Peru. As a consequence, farmers tend not to participate in surveys, do not respond to the sensitive question(s), or underreport their individual coca cultivation areas. There is a political and policy concern in accurately and reliably measuring coca growing areas, therefore survey methodologists need to determine how to encourage response and truthful reporting of sensitive questions related to coca growing. Specific survey strategies applied in our case study included establishment of trust with farmers, confidentiality assurance, matching interviewer-respondent characteristics, changing the format of the sensitive question(s), and non enforcement of absolute isolation of respondents during the survey. The survey results were validated using satellite data. They suggest that farmers tend to underreport their coca areas to 35 to 40% of their true extent.

    Release date: 2012-12-19

  • Articles and reports: 11-522-X200800010958
    Description:

    Telephone Data Entry (TDE) is a system by which survey respondents can return their data to the Office for National Statistics (ONS) using the keypad on their telephone and currently accounts for approximately 12% of total responses to ONS business surveys. ONS is currently increasing the number of surveys which use TDE as the primary mode of response and this paper gives an overview of the redevelopment project covering; the redevelopment of the paper questionnaire, enhancements made to the TDE system and the results from piloting these changes. Improvements to the quality of the data received and increased response via TDE as a result of these developments suggest that data quality improvements and cost savings are possible as a result of promoting TDE as the primary mode of response to short term surveys.

    Release date: 2009-12-03

  • Articles and reports: 11-522-X200800010963
    Description:

    BackgroundThere has been a reluctance to conduct child related research studies with, rather than on children in the African continent. Several studies have embarked on this method, however, ethical and privacy challenges still prevail. The Amajuba Child Health and Wellbeing Research Project is a longitudinal study that was conducted with 725 children aged between 9 and 15 years old in KwaZulu Natal in South Africa and also faced the same challenges.

    MethodsFocus group discussions and self administered questionnaires were used as data collection techniques for ACHWRP. One of ACHWRP's objectives is to document the consequences of parental or caregiver death on health and well-being of orphans in Amajuba District of KwaZulu Natal. Ethical clearance was received from two ethical review boards.

    Lessons learnedEthical challenges included problems of coercion for participation, gatekeeper's and partner's roles, getting consent and assent, recruitment and referral system.Privacy challenges included data collection techniques, curiosity and destruction by members of the family during an interview, the setting where interviews are conducted, logistical issues and the method of recruitment's potential to compromise confidentiality.Resolutions: Detailed consent and assent forms with all relevant information are necessary. Careful selection of partnerships is crucial. Use of a venue that is far from the community is necessary, but in the process making sure that the participants are covered with regards to the expenses of travelling to the venue.

    ConclusionConducting research with children entails investing more time and attention to the planning stage of the study.

    Release date: 2009-12-03

  • Articles and reports: 75F0002M1992009
    Description:

    There are many issues to consider when developing and conducting a survey. Length, complexity and timing of the survey are all factors that may influence potential respondents' likelihood to participate in a survey. One important issue that affects this decision is the extent to which a questionnaire appears to be an invasion of privacy. Information on income and finances is one type of information that many people are reluctant to share but that is important for policy and research purposes.

    Collecting such information for the Survey of Consumer Finances (SCF) has proven difficult, and has resulted in higher than average non-response rate for a supplemental survey to the Labour Force Survey. Given the similarity between the SCF and an upcoming survey, the Survey of Labour and Income Dynamics (SLID), it is important to examine the reasons behind the SCF's higher non-response rate and obtain suggestions for increasing response rate and gaining commitment from respondents to the 6-year SLID.

    Statistics Canada asked Price Waterhouse to conduct focus groups and in-depth interviews with respondents and non-respondents to the SCF. The objectives of these focus groups and in-depth interviews were to explore reasons for response and non-response, issues of privacy and confidentiality and understanding of the terms used in the survey, and to test reactions to the appearance of a draft SLID package.

    Release date: 2008-10-21

  • Articles and reports: 11-522-X200600110433
    Description:

    The process of public-use micro-data files creation involves a number of components. One of its key elements is RTI International's innovative MASSC methodology. However, there are other major components in this process such as treatment of non-core identifying variables and extreme outcomes for extra protection. The statistical disclosure limitation is designed to counter both inside and outside intrusion. The components of the process are accordingly designed.

    Release date: 2008-03-17

  • Articles and reports: 11-522-X200600110434
    Description:

    Protecting respondents from disclosure of their identity in publicly released survey data is of practical concern to many government agencies. Methods for doing so include suppression of cluster and stratum identifiers and altering or swapping record values between respondents. Unfortunately, stratum and cluster identifiers are usually needed for variance estimation using linearization and for replication methods as resampling is typically done on first-stage sampling units within strata. One might feel that releasing a set of replicate weights that also have stratum and cluster identifiers suppressed might circumvent this problem to some extent, especially using some random resampling such as the bootstrap. In this article, we first demonstrate that by viewing the replicate weights as observations in a high dimensional space one can easily use clustering algorithms to reconstruct the cluster identifiers irrespective of the resampling method even if the resampling weights are randomly altered. We then propose a fast algorithm for swapping cluster and strata identifiers of ultimate units before creating replicate weights without significantly impacting resulting variance estimates of characteristics of interest. The methods are illustrated by application to publicly released data from the National Health and Nutrition Examination Surveys, where such disclosure issues are extremely important..

    Release date: 2008-03-17

  • Articles and reports: 11-522-X200600110435
    Description:

    In 1999, the first nationally representative survey of the mental health of children and young people aged 5-15 was carried out in Great Britain. A second survey was carried out in 2004. The aim of these surveys was threefold: to estimate the prevalence of mental disorders among young people, to look at their use of health, social and educational services, and to investigate risk factors associated with mental disorders. The achieved number of interviews was 10,500 and 8,000 respectively. Some key questions had to be addressed on a large number of methodological issues and the factors taken into account to reach decisions on all these issues are discussed.

    Release date: 2008-03-17

  • Articles and reports: 82-003-S200700010364
    Description:

    This article describes how the Canadian Health Measures Survey has addressed the ethical, legal and social issues (ELSI) arising from the survey. The development of appropriate procedures and the rationale behind them are discussed in detail for some specific ELSI.

    Release date: 2007-12-05

  • Articles and reports: 11-522-X20050019435
    Description:

    Data swapping introduces noise in a dataset to improve the protection of statistical confidentiality. We demonstrate in this article that this technique introduces a bias in the estimates.

    Release date: 2007-03-02
Reference (14)

Reference (14) (0 to 10 of 14 results)

  • Surveys and statistical programs – Documentation: 12-539-X
    Description:

    This document brings together guidelines and checklists on many issues that need to be considered in the pursuit of quality objectives in the execution of statistical activities. Its focus is on how to assure quality through effective and appropriate design or redesign of a statistical project or program from inception through to data evaluation, dissemination and documentation. These guidelines draw on the collective knowledge and experience of many Statistics Canada employees. It is expected that Quality Guidelines will be useful to staff engaged in the planning and design of surveys and other statistical projects, as well as to those who evaluate and analyze the outputs of these projects.

    Release date: 2019-12-04

  • Surveys and statistical programs – Documentation: 12-001-X200900211037
    Description:

    Randomized response strategies, which have originally been developed as statistical methods to reduce nonresponse as well as untruthful answering, can also be applied in the field of statistical disclosure control for public use microdata files. In this paper a standardization of randomized response techniques for the estimation of proportions of identifying or sensitive attributes is presented. The statistical properties of the standardized estimator are derived for general probability sampling. In order to analyse the effect of different choices of the method's implicit "design parameters" on the performance of the estimator we have to include measures of privacy protection in our considerations. These yield variance-optimum design parameters given a certain level of privacy protection. To this end the variables have to be classified into different categories of sensitivity. A real-data example applies the technique in a survey on academic cheating behaviour.

    Release date: 2009-12-23

  • Surveys and statistical programs – Documentation: 92-379-X
    Description:

    The 2001 Census Handbook is a reference tool covering every aspect of the 2001 Census of Population and Census of Agriculture. It provides an overview of every phase of the census, from content determination to data dissemination. It traces the history of the census from the early days of New France to the present. It also contains information about the protection of confidential information in census questions and variables, along with information about data quality and the possible uses of census data. Also covered are census geography and the range of products and services available from the 2001 Census database.

    This series includes six general reference products: Preview of Products and Services, Census Dictionary, Catalogue, Standard Products Stubsets, Census Handbook and Technical Reports.

    Release date: 2002-08-06

  • Surveys and statistical programs – Documentation: 62F0026M2001003
    Description:

    This document provides a detailed description of the methodology of the Survey of Household Spending. Topics covered include: target population; sample design; data collection; data processing; weighting and estimation; estimation of sampling error; and data suppression and confidentiality.

    Release date: 2001-10-15

  • Surveys and statistical programs – Documentation: 11-008-X20000045556
    Geography: Canada
    Description:

    This article provides information about the census and how the data gathered are used.

    Release date: 2001-03-12

  • Surveys and statistical programs – Documentation: 85-602-X
    Description:

    The purpose of this report is to provide an overview of existing methods and techniques making use of personal identifiers to support record linkage. Record linkage can be loosely defined as a methodology for manipulating and / or transforming personal identifiers from individual data records from one or more operational databases and subsequently attempting to match these personal identifiers to create a composite record about an individual. Record linkage is not intended to uniquely identify individuals for operational purposes; however, it does provide probabilistic matches of varying degrees of reliability for use in statistical reporting. Techniques employed in record linkage may also be of use for investigative purposes to help narrow the field of search against existing databases when some form of personal identification information exists.

    Release date: 2000-12-05

  • Surveys and statistical programs – Documentation: 11-522-X19990015662
    Description:

    As the availability of both health utilization and outcome information becomes increasingly important to health care researchers and policy makers, the ability to link person-specific health data becomes a critical objective. This type of linkage of population-based administrative health databases has been realized in British Columbia. The database was created by constructing an historical file of all persons registered with the health care system, and then by probabilistically linking various program files to this 'coordinating' file. The first phase of development included the linkage of hospital discharge data, physician billing data, continuing care data, data about drug costs for the elderly, births data and deaths data. The second phase of development has seen the addition data sources external to the Ministry of Health including cancer incidence data, workers' compensation data, and income assistance data.

    Release date: 2000-03-02

  • Surveys and statistical programs – Documentation: 11-522-X19990015688
    Description:

    The geographical and temporal relationship between outdoor air pollution and asthma was examined by linking together data from multiple sources. These included the administrative records of 59 general practices widely dispersed across England and Wales for half a million patients and all their consultations for asthma, supplemented by a socio-economic interview survey. Postcode enabled linkage with: (i) computed local road density; (ii) emission estimates of sulphur dioxide and nitrogen dioxides, (iii) measured/interpolated concentration of black smoke, sulphur dioxide, nitrogen dioxide and other pollutants at practice level. Parallel Poisson time series analysis took into account between-practice variations to examine daily correlations in practices close to air quality monitoring stations. Preliminary analyses show small and generally non-significant geographical associations between consultation rates and pollution markers. The methodological issues relevant to combining such data, and the interpretation of these results will be discussed.

    Release date: 2000-03-02

  • Surveys and statistical programs – Documentation: 12-001-X19990024879
    Description:

    Godambe and Thompson consider the problem of confidence intervals in survey sampling. They first review the use of estimating functions to obtain model robust pivotal quantities and associated confidence intervals, and then discuss the adaptation of this approach to the survey sampling context. Details are worked out for some more specific types of models, and an empirical comparison of this approach with more conventional methods is presented.

    Release date: 2000-03-01

  • Notices and consultations: 11-522-X19980015010
    Description:

    In 1994, Statistics Canada introduced a new longitudinal social survey that collects information from about 23,000 children spread over 13,500 households. The objective of the National Longitudinal Survey of Children and Youth is to measure the development and well being of children until they reach adulthood. To this end, the survey gathers together information about the child, parents, neighbourhood as well as family and school environment. As a consequence, the data collected for each child, is provided by several respondents, from parents to teachers, a situation which contributes to an increased disclosure risk. In order to reach a balance between confidentiality and the analytical value of released data, the survey produces three different microdata files with more or less information. The master file that contains all the information is only available by means of remote access. Hence, researchers do not have direct access to the data, but send their request in the form of software programs that are submitted by Statistics Canada staff. The results are then vetted for confidentiality and sent back to the researchers. The presentation will be devoted to the various disclosure risks of such a survey and to the tools used to reduce those risks.

    Release date: 1999-10-22
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