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All (16) (0 to 10 of 16 results)
- Articles and reports: 12-001-X201500214238Description:
Félix-Medina and Thompson (2004) proposed a variant of link-tracing sampling to sample hidden and/or hard-to-detect human populations such as drug users and sex workers. In their variant, an initial sample of venues is selected and the people found in the sampled venues are asked to name other members of the population to be included in the sample. Those authors derived maximum likelihood estimators of the population size under the assumption that the probability that a person is named by another in a sampled venue (link-probability) does not depend on the named person (homogeneity assumption). In this work we extend their research to the case of heterogeneous link-probabilities and derive unconditional and conditional maximum likelihood estimators of the population size. We also propose profile likelihood and bootstrap confidence intervals for the size of the population. The results of simulations studies carried out by us show that in presence of heterogeneous link-probabilities the proposed estimators perform reasonably well provided that relatively large sampling fractions, say larger than 0.5, be used, whereas the estimators derived under the homogeneity assumption perform badly. The outcomes also show that the proposed confidence intervals are not very robust to deviations from the assumed models.
Release date: 2015-12-17 - Stats in brief: 89-654-X2015003Description:
The Canadian Survey on Disability (CSD) is a national survey of Canadians aged 15 and over whose everyday activities are limited because of a long-term condition or health-related problem. The exception to this is that people with developmental disabilities must have been diagnosed by a health practitioner. Their disability did not need to limit their daily activities.
Release date: 2015-12-03 - Articles and reports: 11-626-X2015051Description:
This article presents information about the receipt of social assistance by refugee claimants who initiated their claim for protection during the 1999-to-2010 period. Until now, no data source has been able to supply information on social assistance receipt among the refugee claimant population. A longer, more detailed study is also available.
Release date: 2015-10-15 - 4. Social Assistance Receipt Among Refugee Claimants in Canada: Evidence from Linked Administrative Data Files ArchivedArticles and reports: 11F0019M2015369Description:
Refugee claimants are an important part of the non-permanent resident population of Canada. Canada granted permanent residency to approximately 12,000 to 16,000 refugees every year during the latter part of the 2000s, and approximately 115,000 to 130,000 refugee claimants were residing in Canada at some point every year over that period. Despite the volume of refugee claimants, very little information on their economic characteristics has been available to date. This report draws on new linked administrative data files to provide information on the receipt of social assistance (SA) among this population. The study was successful in linking approximately three-quarters of all refugee claimants to administrative files containing information on the annual receipt of SA.
Release date: 2015-10-15 - Articles and reports: 11-626-X2015050Description:
This Economic Insights article documents the evolution of real annual wages and salaries and employment patterns of young postsecondary graduates by field of study from 2005 to 2012. Results are shown for Canadian-born individuals aged 25 to 34 who are college graduates or hold a bachelor's degree. The data are drawn from the linked 2006 Census–2011 National Household Survey–T1 Personal Master File. Fields of study are defined according to the Classification of Instructional Programs.
Release date: 2015-09-17 - Articles and reports: 75-006-X201500114221Description:
This article examines the differences in the location of study of immigrant adults aged 25 to 64 with a university education (i.e., with at least a bachelor’s degree). It provides results by period of immigration (pre-1990, the 1990s, and the 2000s) and provides a more in-depth analysis of factors that are linked to the location of study for the most recent cohort of immigrants (i.e., those who immigrated in 2000 or later).
Release date: 2015-09-15 - Articles and reports: 82-003-X201500814215Description:
The data are from the first two cycles (2007 to 2009 and 2009 to 2011) of the Canadian Health Measures Survey, which collected biomonitoring indicators via spot blood and urine samples. Behavioural outcomes—hyperactivity/inattention, emotional symptoms, conduct problems, peer problems, and prosocial behaviour—were assessed with Goodman’s Strengths and Difficulties Questionnaire. Geometric mean urinary Bisphenol A (BPA) concentration was examined overall and by demographic and socioeconomic correlates. Six multiple logistic regression analyses were conducted to investigate associations between childhood BPA concentrations and risk status for each outcome.
Release date: 2015-08-19 - Stats in brief: 89-654-X2015002Description:
This document contains survey results on the number of persons with memory disabilities, prevalence of disability, memory disabilities by age, co-occuring disabilities, educational attainment and experiences as well as employment, memory disabilities in the work place, job modifications, hours worked, not in the labour force, job search barriers, help with everyday activities and income, for Canada.
Release date: 2015-07-27 - Articles and reports: 82-003-X201500714206Description:
The 2012/2013 Canadian Health Measures Survey collected audiometric and self-reported data to estimate the prevalence of hearing loss and limitations in a population-based sample of Canadians. This study presents an analysis of CHMS audiometric and self-reported hearing data for adults aged 20 to 79.
Release date: 2015-07-15 - Articles and reports: 12-001-X201500114149Description:
This paper introduces a general framework for deriving the optimal inclusion probabilities for a variety of survey contexts in which disseminating survey estimates of pre-established accuracy for a multiplicity of both variables and domains of interest is required. The framework can define either standard stratified or incomplete stratified sampling designs. The optimal inclusion probabilities are obtained by minimizing costs through an algorithm that guarantees the bounding of sampling errors at the domains level, assuming that the domain membership variables are available in the sampling frame. The target variables are unknown, but can be predicted with suitable super-population models. The algorithm takes properly into account this model uncertainty. Some experiments based on real data show the empirical properties of the algorithm.
Release date: 2015-06-29
Stats in brief (2)
Stats in brief (2) ((2 results))
- Stats in brief: 89-654-X2015003Description:
The Canadian Survey on Disability (CSD) is a national survey of Canadians aged 15 and over whose everyday activities are limited because of a long-term condition or health-related problem. The exception to this is that people with developmental disabilities must have been diagnosed by a health practitioner. Their disability did not need to limit their daily activities.
Release date: 2015-12-03 - Stats in brief: 89-654-X2015002Description:
This document contains survey results on the number of persons with memory disabilities, prevalence of disability, memory disabilities by age, co-occuring disabilities, educational attainment and experiences as well as employment, memory disabilities in the work place, job modifications, hours worked, not in the labour force, job search barriers, help with everyday activities and income, for Canada.
Release date: 2015-07-27
Articles and reports (14)
Articles and reports (14) (0 to 10 of 14 results)
- Articles and reports: 12-001-X201500214238Description:
Félix-Medina and Thompson (2004) proposed a variant of link-tracing sampling to sample hidden and/or hard-to-detect human populations such as drug users and sex workers. In their variant, an initial sample of venues is selected and the people found in the sampled venues are asked to name other members of the population to be included in the sample. Those authors derived maximum likelihood estimators of the population size under the assumption that the probability that a person is named by another in a sampled venue (link-probability) does not depend on the named person (homogeneity assumption). In this work we extend their research to the case of heterogeneous link-probabilities and derive unconditional and conditional maximum likelihood estimators of the population size. We also propose profile likelihood and bootstrap confidence intervals for the size of the population. The results of simulations studies carried out by us show that in presence of heterogeneous link-probabilities the proposed estimators perform reasonably well provided that relatively large sampling fractions, say larger than 0.5, be used, whereas the estimators derived under the homogeneity assumption perform badly. The outcomes also show that the proposed confidence intervals are not very robust to deviations from the assumed models.
Release date: 2015-12-17 - Articles and reports: 11-626-X2015051Description:
This article presents information about the receipt of social assistance by refugee claimants who initiated their claim for protection during the 1999-to-2010 period. Until now, no data source has been able to supply information on social assistance receipt among the refugee claimant population. A longer, more detailed study is also available.
Release date: 2015-10-15 - 3. Social Assistance Receipt Among Refugee Claimants in Canada: Evidence from Linked Administrative Data Files ArchivedArticles and reports: 11F0019M2015369Description:
Refugee claimants are an important part of the non-permanent resident population of Canada. Canada granted permanent residency to approximately 12,000 to 16,000 refugees every year during the latter part of the 2000s, and approximately 115,000 to 130,000 refugee claimants were residing in Canada at some point every year over that period. Despite the volume of refugee claimants, very little information on their economic characteristics has been available to date. This report draws on new linked administrative data files to provide information on the receipt of social assistance (SA) among this population. The study was successful in linking approximately three-quarters of all refugee claimants to administrative files containing information on the annual receipt of SA.
Release date: 2015-10-15 - Articles and reports: 11-626-X2015050Description:
This Economic Insights article documents the evolution of real annual wages and salaries and employment patterns of young postsecondary graduates by field of study from 2005 to 2012. Results are shown for Canadian-born individuals aged 25 to 34 who are college graduates or hold a bachelor's degree. The data are drawn from the linked 2006 Census–2011 National Household Survey–T1 Personal Master File. Fields of study are defined according to the Classification of Instructional Programs.
Release date: 2015-09-17 - Articles and reports: 75-006-X201500114221Description:
This article examines the differences in the location of study of immigrant adults aged 25 to 64 with a university education (i.e., with at least a bachelor’s degree). It provides results by period of immigration (pre-1990, the 1990s, and the 2000s) and provides a more in-depth analysis of factors that are linked to the location of study for the most recent cohort of immigrants (i.e., those who immigrated in 2000 or later).
Release date: 2015-09-15 - Articles and reports: 82-003-X201500814215Description:
The data are from the first two cycles (2007 to 2009 and 2009 to 2011) of the Canadian Health Measures Survey, which collected biomonitoring indicators via spot blood and urine samples. Behavioural outcomes—hyperactivity/inattention, emotional symptoms, conduct problems, peer problems, and prosocial behaviour—were assessed with Goodman’s Strengths and Difficulties Questionnaire. Geometric mean urinary Bisphenol A (BPA) concentration was examined overall and by demographic and socioeconomic correlates. Six multiple logistic regression analyses were conducted to investigate associations between childhood BPA concentrations and risk status for each outcome.
Release date: 2015-08-19 - Articles and reports: 82-003-X201500714206Description:
The 2012/2013 Canadian Health Measures Survey collected audiometric and self-reported data to estimate the prevalence of hearing loss and limitations in a population-based sample of Canadians. This study presents an analysis of CHMS audiometric and self-reported hearing data for adults aged 20 to 79.
Release date: 2015-07-15 - Articles and reports: 12-001-X201500114149Description:
This paper introduces a general framework for deriving the optimal inclusion probabilities for a variety of survey contexts in which disseminating survey estimates of pre-established accuracy for a multiplicity of both variables and domains of interest is required. The framework can define either standard stratified or incomplete stratified sampling designs. The optimal inclusion probabilities are obtained by minimizing costs through an algorithm that guarantees the bounding of sampling errors at the domains level, assuming that the domain membership variables are available in the sampling frame. The target variables are unknown, but can be predicted with suitable super-population models. The algorithm takes properly into account this model uncertainty. Some experiments based on real data show the empirical properties of the algorithm.
Release date: 2015-06-29 - 9. A method of determining the winsorization threshold, with an application to domain estimation ArchivedArticles and reports: 12-001-X201500114199Description:
In business surveys, it is not unusual to collect economic variables for which the distribution is highly skewed. In this context, winsorization is often used to treat the problem of influential values. This technique requires the determination of a constant that corresponds to the threshold above which large values are reduced. In this paper, we consider a method of determining the constant which involves minimizing the largest estimated conditional bias in the sample. In the context of domain estimation, we also propose a method of ensuring consistency between the domain-level winsorized estimates and the population-level winsorized estimate. The results of two simulation studies suggest that the proposed methods lead to winsorized estimators that have good bias and relative efficiency properties.
Release date: 2015-06-29 - Articles and reports: 82-003-X201500514169Description:
The Cancer Risk Management Model incorporates the risk of developing cancer, disease screening and clinical management with cost and labour data to assess health outcomes and economic impact. A screening module added to the lung cancer module enables a variety of scenarios to be evaluated for different target populations with varying rates of participation, compliance, and frequency of low-dose computed tomography screening.
Release date: 2015-05-20
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