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- Articles and reports: 12-001-X201000211381Description:
Taylor linearization methods are often used to obtain variance estimators for calibration estimators of totals and nonlinear finite population (or census) parameters, such as ratios, regression and correlation coefficients, which can be expressed as smooth functions of totals. Taylor linearization is generally applicable to any sampling design, but it can lead to multiple variance estimators that are asymptotically design unbiased under repeated sampling. The choice among the variance estimators requires other considerations such as (i) approximate unbiasedness for the model variance of the estimator under an assumed model, and (ii) validity under a conditional repeated sampling framework. Demnati and Rao (2004) proposed a unified approach to deriving Taylor linearization variance estimators that leads directly to a unique variance estimator that satisfies the above considerations for general designs. When analyzing survey data, finite populations are often assumed to be generated from super-population models, and analytical inferences on model parameters are of interest. If the sampling fractions are small, then the sampling variance captures almost the entire variation generated by the design and model random processes. However, when the sampling fractions are not negligible, the model variance should be taken into account in order to construct valid inferences on model parameters under the combined process of generating the finite population from the assumed super-population model and the selection of the sample according to the specified sampling design. In this paper, we obtain an estimator of the total variance, using the Demnati-Rao approach, when the characteristics of interest are assumed to be random variables generated from a super-population model. We illustrate the method using ratio estimators and estimators defined as solutions to calibration weighted estimating equations. Simulation results on the performance of the proposed variance estimator for model parameters are also presented.
Release date: 2010-12-21 - 2. Chronic pain at ages 12 to 44 ArchivedArticles and reports: 82-003-X201000411389Geography: CanadaDescription:
This population-based analysis uses data from the 2007/2008 Canadian Community Health Survey to provide estimates of the prevalence of chronic pain by socio-demographic characteristics for a sample of respondents aged 12 to 44.
Release date: 2010-12-15 - 3. Trends in long-term care staffing by facility ownership in British Columbia, 1996 to 2006 ArchivedArticles and reports: 82-003-X201000411390Geography: Province or territoryDescription:
This article uses data from the Residential Care Facilities Survey to examine changes in staffing levels over the past decade in nursing homes in British Columbia, by facility ownership.
Release date: 2010-12-15 - Articles and reports: 15-206-X2010028Description:
This study uses new GDP estimates for the unincorporated sector in order to examine labour productivity in the unincorporated sector and to compare it to that in the corporate sector over the period 1987 to 2005. The level of nominal GDP per hour worked is significantly lower for unincorporated enterprises ($23.20 in 2005) than it is for corporations ($43.40 in 2005). In 2005, GDP per hour worked in the unincorporated sector was just 53% of GDP per hour worked in the corporate sector.
Release date: 2010-10-18 - Articles and reports: 82-003-X201000311325Geography: CanadaDescription:
This article reports the results of a 14-year longitudinal analysis of the relationship between T2D incidence and household income and individual educational attainment. It also examines demographic and behavioural factors that may mediate this relationship.
Release date: 2010-08-18 - Articles and reports: 82-003-X201000311289Geography: CanadaDescription:
Based on data from the 2009 Canadian Community Health Survey-Healthy Aging, this study provides up-to-date estimates of the prevalence of good health, chronic conditions and health-promoting factors among seniors and adults aged 45 to 64.
Release date: 2010-07-21 - Articles and reports: 12-001-X201000111243Description:
The 2003 National Assessment of Adult Literacy (NAAL) and the international Adult Literacy and Lifeskills (ALL) surveys each involved stratified multi-stage area sample designs. During the last stage, a household roster was constructed, the eligibility status of each individual was determined, and the selection procedure was invoked to randomly select one or two eligible persons within the household. The objective of this paper is to evaluate the within-household selection rules under a multi-stage design while improving the procedure in future literacy surveys. The analysis is based on the current US household size distribution and intracluster correlation coefficients using the adult literacy data. In our evaluation, several feasible household selection rules are studied, considering effects from clustering, differential sampling rates, cost per interview, and household burden. In doing so, an evaluation of within-household sampling under a two-stage design is extended to a four-stage design and some generalizations are made to multi-stage samples with different cost ratios.
Release date: 2010-06-29 - Articles and reports: 12-001-X201000111244Description:
This paper considers the problem of selecting nonparametric models for small area estimation, which recently have received much attention. We develop a procedure based on the idea of fence method (Jiang, Rao, Gu and Nguyen 2008) for selecting the mean function for the small areas from a class of approximating splines. Simulation results show impressive performance of the new procedure even when the number of small areas is fairly small. The method is applied to a hospital graft failure dataset for selecting a nonparametric Fay-Herriot type model.
Release date: 2010-06-29 - 9. Maintenance enforcement by neighbourhood income in seven reporting census metropolitan areas ArchivedArticles and reports: 85-002-X201000111116Geography: Census metropolitan areaDescription:
This study looks at child and spousal support, and government enforcement of that support, in different neighbourhoods (Census Tracts, CTs) in the census metropolitan areas from reporting jurisdictions (Halifax, Saint John, Moncton, Regina, Saskatoon, Calgary and Edmonton). CTs are grouped into income quintiles; comparisons are made between lower and higher income CTs on a variety of indicators.
Release date: 2010-03-25 - 10. The financial impact of student loans ArchivedArticles and reports: 75-001-X201010113242Geography: CanadaDescription:
The student borrowing rate among postsecondary graduates increased between 1995 and 2005, with borrowers differing little from non-borrowers in terms of employment rates and total personal income. However, borrowers were less likely to have savings or investments, or own their own homes. Total debt for borrower and non-borrower graduates age 20 to 29 was similar, while borrowers had lower assets and net worth than non-borrowers.
Release date: 2010-03-23
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Articles and reports (11)
Articles and reports (11) (0 to 10 of 11 results)
- Articles and reports: 12-001-X201000211381Description:
Taylor linearization methods are often used to obtain variance estimators for calibration estimators of totals and nonlinear finite population (or census) parameters, such as ratios, regression and correlation coefficients, which can be expressed as smooth functions of totals. Taylor linearization is generally applicable to any sampling design, but it can lead to multiple variance estimators that are asymptotically design unbiased under repeated sampling. The choice among the variance estimators requires other considerations such as (i) approximate unbiasedness for the model variance of the estimator under an assumed model, and (ii) validity under a conditional repeated sampling framework. Demnati and Rao (2004) proposed a unified approach to deriving Taylor linearization variance estimators that leads directly to a unique variance estimator that satisfies the above considerations for general designs. When analyzing survey data, finite populations are often assumed to be generated from super-population models, and analytical inferences on model parameters are of interest. If the sampling fractions are small, then the sampling variance captures almost the entire variation generated by the design and model random processes. However, when the sampling fractions are not negligible, the model variance should be taken into account in order to construct valid inferences on model parameters under the combined process of generating the finite population from the assumed super-population model and the selection of the sample according to the specified sampling design. In this paper, we obtain an estimator of the total variance, using the Demnati-Rao approach, when the characteristics of interest are assumed to be random variables generated from a super-population model. We illustrate the method using ratio estimators and estimators defined as solutions to calibration weighted estimating equations. Simulation results on the performance of the proposed variance estimator for model parameters are also presented.
Release date: 2010-12-21 - 2. Chronic pain at ages 12 to 44 ArchivedArticles and reports: 82-003-X201000411389Geography: CanadaDescription:
This population-based analysis uses data from the 2007/2008 Canadian Community Health Survey to provide estimates of the prevalence of chronic pain by socio-demographic characteristics for a sample of respondents aged 12 to 44.
Release date: 2010-12-15 - 3. Trends in long-term care staffing by facility ownership in British Columbia, 1996 to 2006 ArchivedArticles and reports: 82-003-X201000411390Geography: Province or territoryDescription:
This article uses data from the Residential Care Facilities Survey to examine changes in staffing levels over the past decade in nursing homes in British Columbia, by facility ownership.
Release date: 2010-12-15 - Articles and reports: 15-206-X2010028Description:
This study uses new GDP estimates for the unincorporated sector in order to examine labour productivity in the unincorporated sector and to compare it to that in the corporate sector over the period 1987 to 2005. The level of nominal GDP per hour worked is significantly lower for unincorporated enterprises ($23.20 in 2005) than it is for corporations ($43.40 in 2005). In 2005, GDP per hour worked in the unincorporated sector was just 53% of GDP per hour worked in the corporate sector.
Release date: 2010-10-18 - Articles and reports: 82-003-X201000311325Geography: CanadaDescription:
This article reports the results of a 14-year longitudinal analysis of the relationship between T2D incidence and household income and individual educational attainment. It also examines demographic and behavioural factors that may mediate this relationship.
Release date: 2010-08-18 - Articles and reports: 82-003-X201000311289Geography: CanadaDescription:
Based on data from the 2009 Canadian Community Health Survey-Healthy Aging, this study provides up-to-date estimates of the prevalence of good health, chronic conditions and health-promoting factors among seniors and adults aged 45 to 64.
Release date: 2010-07-21 - Articles and reports: 12-001-X201000111243Description:
The 2003 National Assessment of Adult Literacy (NAAL) and the international Adult Literacy and Lifeskills (ALL) surveys each involved stratified multi-stage area sample designs. During the last stage, a household roster was constructed, the eligibility status of each individual was determined, and the selection procedure was invoked to randomly select one or two eligible persons within the household. The objective of this paper is to evaluate the within-household selection rules under a multi-stage design while improving the procedure in future literacy surveys. The analysis is based on the current US household size distribution and intracluster correlation coefficients using the adult literacy data. In our evaluation, several feasible household selection rules are studied, considering effects from clustering, differential sampling rates, cost per interview, and household burden. In doing so, an evaluation of within-household sampling under a two-stage design is extended to a four-stage design and some generalizations are made to multi-stage samples with different cost ratios.
Release date: 2010-06-29 - Articles and reports: 12-001-X201000111244Description:
This paper considers the problem of selecting nonparametric models for small area estimation, which recently have received much attention. We develop a procedure based on the idea of fence method (Jiang, Rao, Gu and Nguyen 2008) for selecting the mean function for the small areas from a class of approximating splines. Simulation results show impressive performance of the new procedure even when the number of small areas is fairly small. The method is applied to a hospital graft failure dataset for selecting a nonparametric Fay-Herriot type model.
Release date: 2010-06-29 - 9. Maintenance enforcement by neighbourhood income in seven reporting census metropolitan areas ArchivedArticles and reports: 85-002-X201000111116Geography: Census metropolitan areaDescription:
This study looks at child and spousal support, and government enforcement of that support, in different neighbourhoods (Census Tracts, CTs) in the census metropolitan areas from reporting jurisdictions (Halifax, Saint John, Moncton, Regina, Saskatoon, Calgary and Edmonton). CTs are grouped into income quintiles; comparisons are made between lower and higher income CTs on a variety of indicators.
Release date: 2010-03-25 - 10. The financial impact of student loans ArchivedArticles and reports: 75-001-X201010113242Geography: CanadaDescription:
The student borrowing rate among postsecondary graduates increased between 1995 and 2005, with borrowers differing little from non-borrowers in terms of employment rates and total personal income. However, borrowers were less likely to have savings or investments, or own their own homes. Total debt for borrower and non-borrower graduates age 20 to 29 was similar, while borrowers had lower assets and net worth than non-borrowers.
Release date: 2010-03-23
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