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All (28)
All (28) (0 to 10 of 28 results)
- 1. International surveys: Motives and methodologies ArchivedArticles and reports: 12-001-X200800210754Description:
The context of the discussion is the increasing incidence of international surveys, of which one is the International Tobacco Control (ITC) Policy Evaluation Project, which began in 2002. The ITC country surveys are longitudinal, and their aim is to evaluate the effects of policy measures being introduced in various countries under the WHO Framework Convention on Tobacco Control. The challenges of organization, data collection and analysis in international surveys are reviewed and illustrated. Analysis is an increasingly important part of the motivation for large scale cross-cultural surveys. The fundamental challenge for analysis is to discern the real response (or lack of response) to policy change, separating it from the effects of data collection mode, differential non-response, external events, time-in-sample, culture, and language. Two problems relevant to statistical analysis are discussed. The first problem is the question of when and how to analyze pooled data from several countries, in order to strengthen conclusions which might be generally valid. While in some cases this seems to be straightforward, there are differing opinions on the extent to which pooling is possible and reasonable. It is suggested that for formal comparisons, random effects models are of conceptual use. The second problem is to find models of measurement across cultures and data collection modes which will enable calibration of continuous, binary and ordinal responses, and produce comparisons from which extraneous effects have been removed. It is noted that hierarchical models provide a natural way of relaxing requirements of model invariance across groups.
Release date: 2008-12-23 - 2. Variance estimation of changes in repeated surveys and its application to the Swiss survey of value added ArchivedArticles and reports: 12-001-X200800210758Description:
We propose a method for estimating the variance of estimators of changes over time, a method that takes account of all the components of these estimators: the sampling design, treatment of non-response, treatment of large companies, correlation of non-response from one wave to another, the effect of using a panel, robustification, and calibration using a ratio estimator. This method, which serves to determine the confidence intervals of changes over time, is then applied to the Swiss survey of value added.
Release date: 2008-12-23 - Articles and reports: 12-001-X200800210764Description:
This paper considers situations where the target response value is either zero or an observation from a continuous distribution. A typical example analyzed in the paper is the assessment of literacy proficiency with the possible outcome being either zero, indicating illiteracy, or a positive score measuring the level of literacy. Our interest is in how to obtain valid estimates of the average response, or the proportion of positive responses in small areas, for which only small samples or no samples are available. As in other small area estimation problems, the small sample sizes in at least some of the sampled areas and/or the existence of nonsampled areas requires the use of model based methods. Available methods, however, are not suitable for this kind of data because of the mixed distribution of the responses, having a large peak at zero, juxtaposed to a continuous distribution for the rest of the responses. We develop, therefore, a suitable two-part random effects model and show how to fit the model and assess its goodness of fit, and how to compute the small area estimators of interest and measure their precision. The proposed method is illustrated using simulated data and data obtained from a literacy survey conducted in Cambodia.
Release date: 2008-12-23 - Stats in brief: 89-637-X2008004Geography: CanadaDescription:
This is one of three fact sheets in the series using information from the 2006 Aboriginal Peoples Survey (APS) and 2006 Census. The purpose of this fact sheet is to provide information on the topics of access to health professionals, chronic conditions, smoking rates, dental care, barriers to school completion, food insecurity, harvesting country food and country food consumption and sharing. Results are presented for Inuit children aged six to 14 and Inuit aged 15 and over. Findings are for Inuit at the national level, for those in each of the four Inuit regions (Nunatsiavut, Nunavik, Nunavut and the Inuvialuit region) and in some cases, for those outside the Inuit regions.
Release date: 2008-12-19 - 5. Sexual Assault in Canada ArchivedArticles and reports: 85F0033M2008019Geography: CanadaDescription:
Since only a small proportion of sexual offences are formally documented, the prevalence of sexual assault in Canada has been difficult to quantify. Using data from the 1999 and 2004 General Social Surveys (GSS) on victimization and police-reported data derived from the aggregate Uniform Crime Reporting Survey (UCR) and the incident-based Uniform Crime Reporting Survey (UCR2), the prevalence and nature of sexual assault in Canada is examined. Specifically, this report examines rates of sexual victimization; characteristics of victims and offenders; rates of police reporting; reasons for not reporting to police; the emotional effects of sexual victimization; as well as fear of crime and the use of precautionary measures by victims of sexual assault.
Release date: 2008-12-09 - 6. Inuit Health and Social Conditions ArchivedArticles and reports: 89-637-X2008001Geography: CanadaDescription:
This report presents some initial findings from the 2006 Aboriginal Peoples Survey for Inuit adults (aged 15 and over) and children (aged 6-14). A determinant of health framework is used. Information on health status is provided through data on self-reported health and chronic conditions. Other factors such as access to health care, smoking, formal education experiences, housing, participation in harvesting activities and country food consumption are examined. Data are shown for Inuit nationally, for each of the four Inuit regions across Inuit Nunaat (the Inuit homeland), and for Inuit living in southern Canada. Some comparisons are made with the total Canadian population and, on occasion, changes since 2001 are examined.
Release date: 2008-12-03 - Articles and reports: 88-003-X200800210740Geography: CanadaDescription:
This article highlights expenditures and personnel devoted annually to scientific research and development (R&D) by Canadian private non-profit (PNP) organizations. These organizations play an important role in the Canadian R&D landscape: providing financial support to researchers in universities and other laboratories and performing their own research.
Release date: 2008-11-21 - 8. Canadian Agriculture in 2007: Better Farm Prices and Incomes as World Demand for Food Increases ArchivedArticles and reports: 21-004-X200800210669Geography: CanadaDescription:
The objective of this article is a comprehensive statistical review of Canadian agriculture in 2007, a compilation of key statistical information along with the analysis and interpretations of Statistics Canada's commodity specialists.
Release date: 2008-10-02 - 9. The feasibility of establishing correction factors to adjust self-reported estimates of obesity ArchivedArticles and reports: 82-003-X200800310680Geography: CanadaDescription:
This study examines the feasibility of developing correction factors to adjust self-reported measures of body mass index to more closely approximate measured values. Data are from the 2005 Canadian Community Health Survey, in which respondents were asked to report their height and weight, and were subsequently measured.
Release date: 2008-09-17 - Articles and reports: 82-003-X200800310681Geography: CanadaDescription:
This article describes the methods used to link census data from the long-form questionnaire to mortality data, and reports simple findings for the major groups, defined by income, education, occupation, language and ethnicity, Aboriginal or visible minority status, and disability status.
Release date: 2008-09-17
Stats in brief (2)
Stats in brief (2) ((2 results))
- Stats in brief: 89-637-X2008004Geography: CanadaDescription:
This is one of three fact sheets in the series using information from the 2006 Aboriginal Peoples Survey (APS) and 2006 Census. The purpose of this fact sheet is to provide information on the topics of access to health professionals, chronic conditions, smoking rates, dental care, barriers to school completion, food insecurity, harvesting country food and country food consumption and sharing. Results are presented for Inuit children aged six to 14 and Inuit aged 15 and over. Findings are for Inuit at the national level, for those in each of the four Inuit regions (Nunatsiavut, Nunavik, Nunavut and the Inuvialuit region) and in some cases, for those outside the Inuit regions.
Release date: 2008-12-19 - Stats in brief: 13-604-M2008059Description:
This paper reports on the update to 2006 of the Human Resource Module (HRM) of the Tourism Satellite Account developed by Statistics Canada. The HRM provides detailed information on employment related to tourism. Information on wages and salaries, number of jobs and hours worked by occupation are included. The data are also disaggregated by age, gender and immigration status. This study provides a resource for training and planning for tourism.
Release date: 2008-04-21
Articles and reports (26)
Articles and reports (26) (0 to 10 of 26 results)
- 1. International surveys: Motives and methodologies ArchivedArticles and reports: 12-001-X200800210754Description:
The context of the discussion is the increasing incidence of international surveys, of which one is the International Tobacco Control (ITC) Policy Evaluation Project, which began in 2002. The ITC country surveys are longitudinal, and their aim is to evaluate the effects of policy measures being introduced in various countries under the WHO Framework Convention on Tobacco Control. The challenges of organization, data collection and analysis in international surveys are reviewed and illustrated. Analysis is an increasingly important part of the motivation for large scale cross-cultural surveys. The fundamental challenge for analysis is to discern the real response (or lack of response) to policy change, separating it from the effects of data collection mode, differential non-response, external events, time-in-sample, culture, and language. Two problems relevant to statistical analysis are discussed. The first problem is the question of when and how to analyze pooled data from several countries, in order to strengthen conclusions which might be generally valid. While in some cases this seems to be straightforward, there are differing opinions on the extent to which pooling is possible and reasonable. It is suggested that for formal comparisons, random effects models are of conceptual use. The second problem is to find models of measurement across cultures and data collection modes which will enable calibration of continuous, binary and ordinal responses, and produce comparisons from which extraneous effects have been removed. It is noted that hierarchical models provide a natural way of relaxing requirements of model invariance across groups.
Release date: 2008-12-23 - 2. Variance estimation of changes in repeated surveys and its application to the Swiss survey of value added ArchivedArticles and reports: 12-001-X200800210758Description:
We propose a method for estimating the variance of estimators of changes over time, a method that takes account of all the components of these estimators: the sampling design, treatment of non-response, treatment of large companies, correlation of non-response from one wave to another, the effect of using a panel, robustification, and calibration using a ratio estimator. This method, which serves to determine the confidence intervals of changes over time, is then applied to the Swiss survey of value added.
Release date: 2008-12-23 - Articles and reports: 12-001-X200800210764Description:
This paper considers situations where the target response value is either zero or an observation from a continuous distribution. A typical example analyzed in the paper is the assessment of literacy proficiency with the possible outcome being either zero, indicating illiteracy, or a positive score measuring the level of literacy. Our interest is in how to obtain valid estimates of the average response, or the proportion of positive responses in small areas, for which only small samples or no samples are available. As in other small area estimation problems, the small sample sizes in at least some of the sampled areas and/or the existence of nonsampled areas requires the use of model based methods. Available methods, however, are not suitable for this kind of data because of the mixed distribution of the responses, having a large peak at zero, juxtaposed to a continuous distribution for the rest of the responses. We develop, therefore, a suitable two-part random effects model and show how to fit the model and assess its goodness of fit, and how to compute the small area estimators of interest and measure their precision. The proposed method is illustrated using simulated data and data obtained from a literacy survey conducted in Cambodia.
Release date: 2008-12-23 - 4. Sexual Assault in Canada ArchivedArticles and reports: 85F0033M2008019Geography: CanadaDescription:
Since only a small proportion of sexual offences are formally documented, the prevalence of sexual assault in Canada has been difficult to quantify. Using data from the 1999 and 2004 General Social Surveys (GSS) on victimization and police-reported data derived from the aggregate Uniform Crime Reporting Survey (UCR) and the incident-based Uniform Crime Reporting Survey (UCR2), the prevalence and nature of sexual assault in Canada is examined. Specifically, this report examines rates of sexual victimization; characteristics of victims and offenders; rates of police reporting; reasons for not reporting to police; the emotional effects of sexual victimization; as well as fear of crime and the use of precautionary measures by victims of sexual assault.
Release date: 2008-12-09 - 5. Inuit Health and Social Conditions ArchivedArticles and reports: 89-637-X2008001Geography: CanadaDescription:
This report presents some initial findings from the 2006 Aboriginal Peoples Survey for Inuit adults (aged 15 and over) and children (aged 6-14). A determinant of health framework is used. Information on health status is provided through data on self-reported health and chronic conditions. Other factors such as access to health care, smoking, formal education experiences, housing, participation in harvesting activities and country food consumption are examined. Data are shown for Inuit nationally, for each of the four Inuit regions across Inuit Nunaat (the Inuit homeland), and for Inuit living in southern Canada. Some comparisons are made with the total Canadian population and, on occasion, changes since 2001 are examined.
Release date: 2008-12-03 - Articles and reports: 88-003-X200800210740Geography: CanadaDescription:
This article highlights expenditures and personnel devoted annually to scientific research and development (R&D) by Canadian private non-profit (PNP) organizations. These organizations play an important role in the Canadian R&D landscape: providing financial support to researchers in universities and other laboratories and performing their own research.
Release date: 2008-11-21 - 7. Canadian Agriculture in 2007: Better Farm Prices and Incomes as World Demand for Food Increases ArchivedArticles and reports: 21-004-X200800210669Geography: CanadaDescription:
The objective of this article is a comprehensive statistical review of Canadian agriculture in 2007, a compilation of key statistical information along with the analysis and interpretations of Statistics Canada's commodity specialists.
Release date: 2008-10-02 - 8. The feasibility of establishing correction factors to adjust self-reported estimates of obesity ArchivedArticles and reports: 82-003-X200800310680Geography: CanadaDescription:
This study examines the feasibility of developing correction factors to adjust self-reported measures of body mass index to more closely approximate measured values. Data are from the 2005 Canadian Community Health Survey, in which respondents were asked to report their height and weight, and were subsequently measured.
Release date: 2008-09-17 - Articles and reports: 82-003-X200800310681Geography: CanadaDescription:
This article describes the methods used to link census data from the long-form questionnaire to mortality data, and reports simple findings for the major groups, defined by income, education, occupation, language and ethnicity, Aboriginal or visible minority status, and disability status.
Release date: 2008-09-17 - Articles and reports: 11-522-X200600110424Description:
The International Tobacco Control (ITC) Policy Evaluation China Survey uses a multi-stage unequal probability sampling design with upper level clusters selected by the randomized systematic PPS sampling method. A difficulty arises in the execution of the survey: several selected upper level clusters refuse to participate in the survey and have to be replaced by substitute units, selected from units not included in the initial sample and once again using the randomized systematic PPS sampling method. Under such a scenario the first order inclusion probabilities of the final selected units are very difficult to calculate and the second order inclusion probabilities become virtually intractable. In this paper we develop a simulation-based approach for computing the first and the second order inclusion probabilities when direct calculation is prohibitive or impossible. The efficiency and feasibility of the proposed approach are demonstrated through both theoretical considerations and numerical examples. Several R/S-PLUS functions and codes for the proposed procedure are included. The approach can be extended to handle more complex refusal/substitution scenarios one may encounter in practice.
Release date: 2008-06-26