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  • 1. Toward a system of integrated statistical data on education and training Archived
    Articles and reports: 11-522-X202200100009
    Description: Education and training is acknowledged as fundamental for the development of a society. It is a complex multidimensional phenomenon, which determinants are ascribable to several interrelated familiar and socio-economic conditions. To respond to the demand of supporting statistical information for policymaking and its monitoring and evaluation process, the Italian National Statistical Institute (Istat) is renewing the education and training statistical production system, implementing a new thematic statistical register. It will be part of the Istat Integrated System of Registers, thus allowing relating the education and training phenomenon to other relevant phenomena, e.g. transition to work.
    Release date: 2024-03-25
  • 2. Children born into vulnerability: Challenges encountered in a Quebec longitudinal survey Archived
    Articles and reports: 11-522-X202200100010
    Description: Growing Up in Québec is a longitudinal population survey that began in the spring of 2021 at the Institut de la statistique du Québec. Among the children targeted by this longitudinal follow-up, some will experience developmental difficulties at some point in their lives. Those same children often have characteristics associated with higher sample attrition (low-income family, parents with a low level of education). This article describes the two main challenges we encountered when trying to ensure sufficient representativeness of these children, in both the overall results and the subpopulation analyses.
    Release date: 2024-03-25
  • 3. Longitudinal Immigration Database (IMDB) Technical Report, 2022
    Articles and reports: 11-633-X2024001
    Description: The Longitudinal Immigration Database (IMDB) is a comprehensive source of data that plays a key role in the understanding of the economic behaviour of immigrants. It is the only annual Canadian dataset that allows users to study the characteristics of immigrants to Canada at the time of admission and their economic outcomes and regional (inter-provincial) mobility over a time span of more than 35 years.
    Release date: 2024-01-22
  • 4. Longitudinal Immigration Database (IMDB) Technical Report, 2021
    Articles and reports: 11-633-X2022009
    Description:

    The Longitudinal Immigration Database (IMDB) is a comprehensive source of data that plays a key role in the understanding of the economic behaviour of immigrants. It is the only annual Canadian dataset that allows users to study the characteristics of immigrants to Canada at the time of admission and their economic outcomes and regional (inter-provincial) mobility over a time span of more than 35 years.

    This report will discuss the IMDB data sources, concepts and variables, record linkage, data processing, dissemination, data evaluation and quality indicators, comparability with other immigration datasets, and the analyses possible with the IMDB.

    Release date: 2022-12-05
  • 5. Attrition in the Longitudinal and International Study of Adults, Wave 1 (2012) to Wave 4 (2018)
    Articles and reports: 89-648-X2022001
    Description:

    This report explores the size and nature of the attrition challenges faced by the Longitudinal and International Study of Adults (LISA) survey, as well as the use of a non-response weight adjustment and calibration strategy to mitigate the effects of attrition on the LISA estimates. The study focuses on data from waves 1 (2012) to 4 (2018) and uses practical examples based on selected demographic variables, to illustrate how attrition be assessed and treated.

    Release date: 2022-11-14
  • 6. Longitudinal Immigration Database (IMDB) Technical Report, 2020
    Articles and reports: 11-633-X2021008
    Description:

    The Longitudinal Immigration Database (IMDB) is a comprehensive source of data that plays a key role in the understanding of the economic behaviour of immigrants. It is the only annual Canadian dataset that allows users to study the characteristics of immigrants to Canada at the time of admission and their economic outcomes and regional (inter-provincial) mobility over a time span of more than 35 years. The IMDB includes Immigration, Refugees and Citizenship Canada (IRCC) administrative records which contain exhaustive information about immigrants who were admitted to Canada since 1952. It also includes data about non-permanent residents who have been issued temporary resident permits since 1980. This report will discuss the IMDB data sources, concepts and variables, record linkage, data processing, dissemination, data evaluation and quality indicators, comparability with other immigration datasets, and the analyses possible with the IMDB.

    Release date: 2021-12-06
  • 7. Validation of the Food Security Module in the 2018 Longitudinal and International Study of Adults
    Articles and reports: 89-648-X2020004
    Description:

    This technical report is intended to validate the Longitudinal and International Study of Adults (LISA) Wave 4 (2018) Food Security (FSC) module and provide recommendations for analytical use. Section 2 of this report provides an overview of the LISA data. Section 3 provides some background information of food security measures in national surveys and why it is significant in today's literature. Section 4 analyzes FSC data by presenting key descriptive statistics and logic checks using LISA methodology as well as outside researcher information. In section 5, certification validation was done by comparing other Canadian national surveys that have used the FSC module to the one used by LISA. Finally in section 6, key findings and their implications with regard to LISA are outlined.

    Release date: 2020-11-02
  • 8. Sample selection in tax data sets of intergenerational links: Evidence from the Longitudinal and International Study of Adults
    Articles and reports: 89-648-X2020002
    Description:

    Administrative data sets have become increasingly popular sources of information to study mobility across generations. However, the inclusion of parent-child pairs depends on the primary purpose for which the data was collected. In the case of tax records, both parents and children must have worked and filed their taxes, and the children's labour market entry must have happened before they left the parental home. This paper documents selection in samples of parent-child pairs constructed from personal income tax records from Canada, and discusses implications for intergenerational research. It takes advantage of the fact that Statistics Canada's Longitudinal and International Study of Adults (LISA) includes both survey and administrative data to inform the nature and severity of the resulting sample selection. Results show that respondents who were successfully linked to their parents are more educated, and are more likely to have grown up in better educated, nuclear families. However, correcting for sample selection suggests that there is no bias in unadjusted estimates.

    Release date: 2020-03-17
  • 9. Assessing the suitability of the Longitudinal and International Study of Adults for the estimation of intergenerational income mobility
    Articles and reports: 89-648-X2020003
    Description:

    This study investigates the suitability of Canada's Longitudinal and International Study of Adults (LISA) for research on intergenerational income mobility. The LISA combines survey data, collected biennially since 2012, and the personal income tax records of both respondents and their past and present family members. In comparison, existing work on intergenerational mobility in Canada has often used the Intergenerational Income Database (IID), a purely administrative dataset based on the universe of tax filers. The IID's size has allowed researchers to describe the experience of mobility of narrowly defined geographic units and cohorts. However, its potential to investigate the mechanisms underlying these patterns is limited, given the small set of variables it informs. As such, the LISA is a promising candidate to further our understanding of the drivers of mobility. This study reproduces the analysis from four key papers that have documented the intergenerational transmission of income in Canada using the IID. Despite having a much smaller sample size and a different approach to the establishment of parent-child links, it finds that the LISA produces results that are consistent with the existing literature. This study also explores the sensitivity of rank-rank estimates to the choice of different specification and present results that will guide the methodological choices to be made by users of the LISA intergenerational family files in combination with LISA variables from the survey data.

    Release date: 2020-03-17
  • 10. Imputing Postal Codes to Analyze Ecological Variables in Longitudinal Cohorts: Exposure to Particulate Matter in the Canadian Census Health and Environment Cohort Database Archived
    Articles and reports: 11-633-X2017006
    Description:

    This paper describes a method of imputing missing postal codes in a longitudinal database. The 1991 Canadian Census Health and Environment Cohort (CanCHEC), which contains information on individuals from the 1991 Census long-form questionnaire linked with T1 tax return files for the 1984-to-2011 period, is used to illustrate and validate the method. The cohort contains up to 28 consecutive fields for postal code of residence, but because of frequent gaps in postal code history, missing postal codes must be imputed. To validate the imputation method, two experiments were devised where 5% and 10% of all postal codes from a subset with full history were randomly removed and imputed.

    Release date: 2017-03-13
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Analysis (87)

Analysis (87) (60 to 70 of 87 results)

  • 61. Producing efficient data files using Stat/Transfer Archived
    Articles and reports: 12-002-X20040016905
    Description:

    Large data sets present several challenges to researchers, particularly to less experienced researchers. One of the most time-consuming and frustrating activities for beginning researchers, who do not have experience with large datasets, can be pruning or parsing the data set to only the variables and sample of interest. The production of an 'efficient' data file can assist in the increased performance of hardware and software as well as reducing frustration for the researcher. One way of producing a parsed efficient data file using a program called Stat/Transfer is presented.

    Release date: 2004-04-15
  • 62. Estimation using the generalised weight share method: The case of record linkage Archived
    Articles and reports: 12-001-X20010026092
    Description:

    To augment the amount of available information, data from different sources are increasingly being combined. These databases are often combined using record linkage methods. When there is no unique identifier, a probabilistic linkage is used. In that case, a record on a first file is associated with a probability that is linked to a record on a second file, and then a decision is taken on whether a possible link is a true link or not. This usually requires a non-negligible amount of manual resolution. It might then be legitimate to evaluate if manual resolution can be reduced or even eliminated. This issue is addressed in this paper where one tries to produce an estimate of a total (or a mean) of one population, when using a sample selected from another population linked somehow to the first population. In other words, having two populations linked through probabilistic record linkage, we try to avoid any decision concerning the validity of links and still be able to produce an unbiased estimate for a total of the one of two populations. To achieve this goal, we suggest the use of the Generalised Weight Share Method (GWSM) described by Lavallée (1995).

    Release date: 2002-02-28
  • 63. A better understanding of weight transformation through a measure of change Archived
    Articles and reports: 12-001-X20010015858
    Description:

    The objective of this paper is to study and measure the change (from the initial to the final weight) which results from the procedure used to modify weights. A breakdown of the final weights is proposed in order to evaluate the relative impact of the nonresponse adjustment, the correction for poststratification and the interaction between these two adjustments. This measure of change is used as a tool for comparing the effectiveness of the various methods for adjusting for nonresponse, in particular the methods relying on the formation of Response Homogeneity Groups. The measure of change is examined through a simulation study, which uses data from a Statistics Canada longitudinal survey, the Survey of Labour and Income Dynamics. The measure of change is also applied to data obtained from a second longitudinal survey, the National Longitudinal Survey of Children and Youth.

    Release date: 2001-08-22
  • 64. Proxy reporting in the National Population Health Survey Archived
    Articles and reports: 82-003-X20000015300
    Geography: Canada
    Description:

    This article examines the extent of proxy reporting in the Natiional Population Health (NPHS). It also explores associations between proxy reporting status and the prevalence of selected health problems, and investigates the relationship between changes in proxy reporting status and two-year incidence of health problems.

    Release date: 2000-10-20
  • 65. Longitudinal and Cross-sectional Weighting of the Survey of Labour and Income Dynamics Archived
    Articles and reports: 75F0002M2000004
    Description:

    This paper describes the methodology for the longitudinal and cross-sectional weights produced by the Survey of Labour and Income Dynamics (SLID). It also presents problems the survey has encountered and proposed solutions.

    Release date: 2000-08-31
  • 66. Multilevel modelling of complex survey longitudinal data with time varying random effects Archived
    Articles and reports: 12-001-X20000015178
    Description:

    Longitudinal observations consist of repeated measurements on the same units over a number of occasions, with fixed or varying time spells between the occasions. Each vector observation can be viewed therefore as a time series, usually of short length. Analyzing the measurements for all the units permits the fitting of low-order time series models, despite the short lengths of the individual series.

    Release date: 2000-08-30
  • 67. Project of linkage of the Census and Manitoba's health care records Archived
    Articles and reports: 11-522-X19990015646
    Geography: Canada
    Description:

    The current economic context obliges all partners of health-care systems, whether public or private, to identify those factors that determine the use of health-care services. To increase our understanding of the phenomena that underlie these relationships, Statistics Canada and the Manitoba Centre for Health Policy and Evaluation have established a new database. For a representative sample of the province of Manitoba, cross-sectional micro-data on the level of health of individuals and on their socioeconomic characteristics, and detailed longitudinal data on the use of health-care services have been linked. In this presentation, we will discuss the general context of the linkage of records from various organizations, the protection of privacy and confidentiality. We will also present results of studies which should not have been performed in the absence of the linked database.

    Release date: 2000-03-02
  • 68. Some issues in the estimation of income dynamics Archived
    Articles and reports: 12-001-X19990014716
    Description:

    Two design-based estimators of gross flows and transition rates are considered. One makes use of the cross-sectional samples for the estimation of the income class boundaries at each time period and the longitudinal sample for the estimation of counts of units in the longitudinal population (longitudinal counts); this is the mixed estimator. The other one is entirely based on the longitudinal sample, both for the estimation of the class boundaries and the longitudinal counts; this is the longitudinal estimator. We compare the two estimators in the presence of large attrition rates, by means of a simulation. We find that under a less than perfect model of compensation for attrition, the mixed estimator is usually more sensitive to model bias than the longitudinal estimator. Furthermore, we find that for the mixed estimator, the magnitude of this bias overshadows the small gain in precision when compared to the longitudinal estimator. The results are illustrated with data from the Survey of Labour and Income Dynamics and the Longitudinal Administrative Database of Statistics Canada.

    Release date: 1999-10-08
  • 69. Utilising longitudinally linked data from the British Labour Force Survey Archived
    Articles and reports: 12-001-X19990014717
    Description:

    The British Labour Froce Survey (LFS) uses a rotating sample design, with each sample household retained for five consecutive quarters. Linking together the information on the same persons across quarters produces a potentially very rich source of longitudinal data. There are however serious risks of distortion in the results from such longitudinal linking, mainly arising from sample attrition, and from response errors, which can produce spurious flows between economic activity states. This paper describes the initial results of investigations by the Office for National Statistics (ONS) into the nature and extent of the problems.

    Release date: 1999-10-08
  • 70. The National Population Health Survey - its longitudinal nature Archived
    Articles and reports: 82-003-X19980044511
    Geography: Canada
    Description:

    This article discusses some of the benefits and challenges of data from a longitudinal panel as exemplified by the National Population Health Survey (NPHS). An overview of content and collection methods, sample design, response rates, and some of the special methodological and operational approaches for this longitudinal survey.

    Release date: 1999-04-29
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