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All (156)

All (156) (60 to 70 of 156 results)

  • Articles and reports: 12-001-X201300111824
    Description:

    In most surveys all sample units receive the same treatment and the same design features apply to all selected people and households. In this paper, it is explained how survey designs may be tailored to optimize quality given constraints on costs. Such designs are called adaptive survey designs. The basic ingredients of such designs are introduced, discussed and illustrated with various examples.

    Release date: 2013-06-28

  • Articles and reports: 12-001-X201300111825
    Description:

    A considerable limitation of current methods for automatic data editing is that they treat all edits as hard constraints. That is to say, an edit failure is always attributed to an error in the data. In manual editing, however, subject-matter specialists also make extensive use of soft edits, i.e., constraints that identify (combinations of) values that are suspicious but not necessarily incorrect. The inability of automatic editing methods to handle soft edits partly explains why in practice many differences are found between manually edited and automatically edited data. The object of this article is to present a new formulation of the error localisation problem which can distinguish between hard and soft edits. Moreover, it is shown how this problem may be solved by an extension of the error localisation algorithm of De Waal and Quere (2003).

    Release date: 2013-06-28

  • Articles and reports: 12-001-X201300111826
    Description:

    It is routine practice for survey organizations to provide replication weights as part of survey data files. These replication weights are meant to produce valid and efficient variance estimates for a variety of estimators in a simple and systematic manner. Most existing methods for constructing replication weights, however, are only valid for specific sampling designs and typically require a very large number of replicates. In this paper we first show how to produce replication weights based on the method outlined in Fay (1984) such that the resulting replication variance estimator is algebraically equivalent to the fully efficient linearization variance estimator for any given sampling design. We then propose a novel weight-calibration method to simultaneously achieve efficiency and sparsity in the sense that a small number of sets of replication weights can produce valid and efficient replication variance estimators for key population parameters. Our proposed method can be used in conjunction with existing resampling techniques for large-scale complex surveys. Validity of the proposed methods and extensions to some balanced sampling designs are also discussed. Simulation results showed that our proposed variance estimators perform very well in tracking coverage probabilities of confidence intervals. Our proposed strategies will likely have impact on how public-use survey data files are produced and how these data sets are analyzed.

    Release date: 2013-06-28

  • Articles and reports: 12-001-X201300111827
    Description:

    SILC (Statistics on Income and Living Conditions) is an annual European survey that measures the population's income distribution, poverty and living conditions. It has been conducted in Switzerland since 2007, based on a four-panel rotation scheme that yields both cross-sectional and longitudinal estimates. This article examines the problem of estimating the variance of the cross-sectional poverty and social exclusion indicators selected by Eurostat. Our calculations take into account the non-linearity of the estimators, total non-response at different survey stages, indirect sampling and calibration. We adapt the method proposed by Lavallée (2002) for estimating variance in cases of non-response after weight sharing, and we obtain a variance estimator that is asymptotically unbiased and very easy to program.

    Release date: 2013-06-28

  • Articles and reports: 12-001-X201300111828
    Description:

    A question that commonly arises in longitudinal surveys is the issue of how to combine differing cohorts of the survey. In this paper we present a novel method for combining different cohorts, and using all available data, in a longitudinal survey to estimate parameters of a semiparametric model, which relates the response variable to a set of covariates. The procedure builds upon the Weighted Generalized Estimation Equation method for handling missing waves in longitudinal studies. Our method is set up under a joint-randomization framework for estimation of model parameters, which takes into account the superpopulation model as well as the survey design randomization. We also propose a design-based, and a joint-randomization, variance estimation method. To illustrate the methodology we apply it to the Survey of Doctorate Recipients, conducted by the U.S. National Science Foundation.

    Release date: 2013-06-28

  • Articles and reports: 12-001-X201300111829
    Description:

    Indirect Sampling is used when the sampling frame is not the same as the target population, but related to the latter. The estimation process for Indirect Sampling is carried out using the Generalised Weight Share Method (GWSM), which is an unbiased procedure (see Lavallée 2002, 2007). For business surveys, Indirect Sampling is applied as follows: the sampling frame is one of establishments, while the target population is one of enterprises. Enterprises are selected through their establishments. This allows stratifying according to the establishment characteristics, rather than those associated with enterprises. Because the variables of interest of establishments are generally highly skewed (a small portion of the establishments covers the major portion of the economy), the GWSM results in unbiased estimates, but their variance can be large. The purpose of this paper is to suggest some adjustments to the weights to reduce the variance of the estimates in the context of skewed populations, while keeping the method unbiased. After a brief overview of Indirect Sampling and the GWSM, we describe the required adjustments to the GWSM. The estimates produced with these adjustments are compared to those from the original GWSM, via a small numerical example, and using real data originating from the Statistics Canada's Business Register.

    Release date: 2013-06-28

  • Articles and reports: 12-001-X201300111830
    Description:

    We consider two different self-benchmarking methods for the estimation of small area means based on the Fay-Herriot (FH) area level model: the method of You and Rao (2002) applied to the FH model and the method of Wang, Fuller and Qu (2008) based on augmented models. We derive an estimator of the mean squared prediction error (MSPE) of the You-Rao (YR) estimator of a small area mean that, under the true model, is correct to second-order terms. We report the results of a simulation study on the relative bias of the MSPE estimator of the YR estimator and the MSPE estimator of the Wang, Fuller and Qu (WFQ) estimator obtained under an augmented model. We also study the MSPE and the estimators of MSPE for the YR and WFQ estimators obtained under a misspecified model.

    Release date: 2013-06-28

  • Articles and reports: 12-001-X201300111831
    Description:

    We consider conservative variance estimation for the Horvitz-Thompson estimator of a population total in sampling designs with zero pairwise inclusion probabilities, known as "non-measurable" designs. We decompose the standard Horvitz-Thompson variance estimator under such designs and characterize the bias precisely. We develop a bias correction that is guaranteed to be weakly conservative (nonnegatively biased) regardless of the nature of the non-measurability. The analysis sheds light on conditions under which the standard Horvitz-Thompson variance estimator performs well despite non-measurability and where the conservative bias correction may outperform commonly-used approximations.

    Release date: 2013-06-28

  • Articles and reports: 11-626-X2013027
    Geography: Canada
    Description: This article in the Economic Insights series looks at the increase in food prices that has taken place worldwide since 2007. It answers the following questions: How have food prices evolved in Canada and in the rest of the world since 2007? How do the recent trends in Canada compare to previous episodes of rising food prices?
    Release date: 2013-06-27

  • Articles and reports: 75F0002M2013002
    Description:

    In order to provide a holographic or complete picture of low income, Statistics Canada uses three complementary low income lines: the Low Income Cut-offs (LICOs), the Low Income Measures (LIMs) and the Market Basket Measure (MBM). While the first two lines were developed by Statistics Canada, the MBM is based on concepts developed by Human Resources and Skill Development Canada. Though these measures differ from one another, they give a generally consistent picture of low income status over time. None of these measures is the best. Each contributes its own perspective and its own strengths to the study of low income, so that cumulatively, the three provide a better understanding of the phenomenon of low income as a whole. These measures are not measures of poverty, but strictly measures of low income.

    Release date: 2013-06-27
Stats in brief (46)

Stats in brief (46) (10 to 20 of 46 results)

  • Stats in brief: 91-209-X201300111784
    Geography: Canada
    Description: This article examines fertility in Canada with a focus on the years 2009 to 2011. In addition to the number of births, indicators including the total fertility rate, average age of mother, parity and completed fertility are analyzed. Historical trends, as well as provincial and territorial patterns will also be examined where appropriate.
    Release date: 2013-07-09

  • Stats in brief: 91-209-X201300111785
    Geography: Canada
    Description: This article examines mortality in Canada primarily for the year 2008 and 2009 including infant mortality, the probability of dying and life expectancy for males and females.
    Release date: 2013-07-09

  • Stats in brief: 99-012-X201100311849
    Description:

    This NHS in Brief focuses on educational attainment (highest certificate, diploma or degree) among First Nations people, Métis and Inuit in Canada in 2011.

    Release date: 2013-06-26

  • 14. Commuting to work Archived
    Stats in brief: 99-012-X201100311850
    Geography: Census metropolitan area
    Description:

    This National Household Survey in brief presents key findings emerging from the analysis of data on place of work and journey to work in Canada in 2011. It provides information on workers' mode of transportation, their place of work and their commuting time. The analysis focuses on various levels of geography, including Canada and census metropolitan areas (CMAs).

    Release date: 2013-06-26

  • Stats in brief: 99-012-X201100311851
    Description:

    This National Household Survey in brief presents key findings emerging from the analysis of data on languages of work in Canada in 2011. It provides information on the use of English, French and other languages at work. The analysis focuses on various levels of geography, including Canada, Quebec and the rest of Canada, and selected census metropolitan areas (CMAs).

    Release date: 2013-06-26

  • 16. Education Archived
    Stats in brief: 11-629-X2015017
    Description:

    Sarah Jane Ferguson, Analyst, presents a brief portrait of education in Canada, 2011 National Household Survey.

    Release date: 2013-06-26

  • 17. Labour Archived
    Stats in brief: 11-629-X2015018
    Description:

    Vincent Ferrao, Analyst, presents a brief overview of labour in Canada, 2011 National Household Survey.

    Release date: 2013-06-26

  • Stats in brief: 99-012-X2011003
    Description:

    The National Household Survey in Brief (NHS in Brief) series documents complement the National Household Survey analytical documents by focusing on specific topics of interest.

    Release date: 2013-06-26

  • Stats in brief: 82-625-X201300111845
    Geography: Canada
    Description:

    This will feature a selection of health indicators for the 34 census metropolitan areas (CMA) in Canada. Data at the provincial and national level will be presented and compared with the data for the CMA.

    Release date: 2013-06-21

  • Stats in brief: 82-625-X201300111832
    Geography: Canada
    Description:

    This is a Health fact sheet about having a regular medical doctor among Canadians. The results shown are based on data from the Canadian Community Health Survey.

    Release date: 2013-06-17
Articles and reports (107)

Articles and reports (107) (100 to 110 of 107 results)

  • Articles and reports: 11F0027M2013083
    Geography: Canada
    Description:

    This paper examines why rates of homeownership have been increasing amongst young higher-income households, but declining among young lower-income households. For the period from 1981 to 2006, household data from the Census of Population, supplemented with information from the Survey of Financial Security, are employed to model the decision to own across the income distribution. The model assesses whether housing market conditions (e.g., the cost of renting versus owning), the financial condition of households (e.g., whether the household has sufficient wealth to make a standard down payment), and demographic factors (e.g., changing family composition) account for these diverging trends in housing demand.

    Release date: 2013-01-29

  • Articles and reports: 89-648-X2013001
    Geography: Canada
    Description:

    In the fall of 2008, Statistics Canada, in partnership with Human Resources and Social Development Canada (HRSDC) and the Canadian academic community, put into the field the Canadian Household Panel Survey Pilot (CHPS-Pilot). This paper describes the background of the project, the steps taken in the development of the pilot survey, and the results of a series of explorations of the data collected.

    Release date: 2013-01-24

  • Articles and reports: 89-648-X2013002
    Geography: Canada
    Description:

    Data matching is a common practice used to reduce the response burden of respondents and to improve the quality of the information collected from respondents when the linkage method does not introduce bias. However, historical linkage, which consists in linking external records from previous years to the year of the initial wave of a survey, is relatively rare and, until now, had not been used at Statistics Canada. The present paper describes the method used to link the records from the Living in Canada Survey pilot to historical tax data on income and labour (T1 and T4 files). It presents the evolution of the linkage rate going back over time and compares earnings data collected from personal income tax returns with those collected from employers file. To illustrate the new possibilities of analysis offered by this type of linkage, the study concludes with an earnings profile by age and sex for different cohorts based on year of birth.

    Release date: 2013-01-24

  • Articles and reports: 82-003-X201300111764
    Geography: Province or territory
    Description:

    This study compares two sources of information about prescription drug use by people aged 65 or older in Ontario - the Canadian Community Health Survey and the drug claimsdatabase of the Ontario Drug Benefit Program. The analysis pertains to cardiovascular and diabetes drugs because they are commonly used, and almost all are prescribed on a regular basis.

    Release date: 2013-01-16

  • Articles and reports: 82-003-X201300111765
    Geography: Canada
    Description:

    This study describes how items collected from parents/guardians for a nationally representative sample of Aboriginal children (off reserve) as part of the 2006 Aboriginal Children's Survey could be used as language indicators.

    Release date: 2013-01-16

  • Articles and reports: 82-624-X201300111727
    Geography: Canada
    Description:

    This article investigates vitamin D, featuring the Canadian Health Measures Survey from Cycle 2 (collected from August, 2009 to November, 2011). The focus is on how vitamin D levels differ depending on one's age, sex, supplement use, milk consumption, season of sun exposure, and body mass index (BMI).

    Release date: 2013-01-10

  • Articles and reports: 85-002-X201300111739
    Geography: Province or territory, Census metropolitan area
    Description:

    This Juristat article presents data on police-reported impaired driving. It examines trends in impaired driving in Canada, the provinces and territories, and census metropolitan areas. Characteristics of impaired driving, such as age and sex of accused persons and time of the day and time of year when those incidents occur, are also examined. The analysis is also supported by self-reported data on impaired driving from the Canadian community health survey. This report also presents data on impaired driving cases completed by adult criminal courts as well as on admissions to sentenced custody for impaired driving.

    Release date: 2013-01-10
Journals and periodicals (3)

Journals and periodicals (3) ((3 results))

  • Journals and periodicals: 89-555-X
    Description:

    The Programme for the International Assessment of Adult Competencies (PIAAC), an initiative of OECD, provides internationally comparable measures of three skills that are essential to processing information: literacy, numeracy, and problem-solving in technology-rich environments (referred to as PS-TRE). Canada is one of 24 countries and sub-national regions participating in this initiative. This study aims to provide a picture of the competencies of the Canadian population aged 16 to 65 in all three skill domains.

    Release date: 2013-10-18

  • Journals and periodicals: 89-637-X
    Geography: Canada
    Description:

    The Aboriginal Peoples Survey is a national survey of Aboriginal peoples (First Nations people living off-reserve, Métis and Inuit) living in urban, rural and northern locations throughout Canada. The survey provides valuable data on the social and economic conditions of Aboriginal children and youth (6-14 years) and Aboriginal people (15 years and over). It was conducted previously in 1991 and in 2001. The survey was designed and implemented in partnership with national Aboriginal organizations. The purpose of the Aboriginal Peoples Survey was to provide data on the social and economic conditions of Aboriginal people in Canada. More specifically, its purpose was to identify the needs of Aboriginal people and focus on issues such as health, language, employment, income, schooling, housing, and mobility. More detailed information about the survey is available in the APS 2006 Concepts and Methods Guide.

    Release date: 2013-03-27

  • Journals and periodicals: 11-526-X
    Description:

    Statistics Canada periodically conducts the Household and the Environment Survey to measure household actions that have, or are perceived to have, positive or negative impacts on the environment. The survey provides baseline information to use in measuring progress towards sound environmental practices at the household level. The subjects examined include consumption and conservation of energy, consumption and conservation of water, indoor environment, use of pesticides and fertilizers, outdoor air quality and consumer decisions.

    Release date: 2013-03-18
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