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- Articles and reports: 12-001-X201800254957Description:
When a linear imputation method is used to correct non-response based on certain assumptions, total variance can be assigned to non-responding units. Linear imputation is not as limited as it seems, given that the most common methods – ratio, donor, mean and auxiliary value imputation – are all linear imputation methods. We will discuss the inference framework and the unit-level decomposition of variance due to non-response. Simulation results will also be presented. This decomposition can be used to prioritize non-response follow-up or manual corrections, or simply to guide data analysis.
Release date: 2018-12-20 - Articles and reports: 75-006-X201800154979Description:
In anticipation of legislation (Bill C-45) legalizing cannabis for non medical use coming into force, Statistics Canada has undertaken a thorough review of its capability to evaluate the bill’s impact. This document focuses on the agency’s social statistics system—specifically, surveys and administrative databases designed to collect information related to health and health care; law enforcement; the justice system and community safety and well-being; education; and labour.
Release date: 2018-10-12 - 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 - 4. Introducing Adaptive Design Elements in the Panel Study “Labour Market and Social Security” (PASS) ArchivedArticles and reports: 11-522-X201300014277Description:
This article gives an overview of adaptive design elements introduced to the PASS panel survey in waves four to seven. The main focus is on experimental interventions in later phases of the fieldwork. These interventions aim at balancing the sample by prioritizing low-propensity sample members. In wave 7, interviewers received a double premium for completion of interviews with low-propensity cases in the final phase of the fieldwork. This premium was restricted to a random half of the cases with low estimated response propensity and no final status after four months of prior fieldwork. This incentive was effective in increasing interviewer effort, however, led to no significant increase in response rates.
Release date: 2014-10-31 - 5. The influence of sampling method and interviewers on sample realization in the European Social Survey ArchivedArticles and reports: 12-001-X201400114001Description:
This article addresses the impact of different sampling procedures on realised sample quality in the case of probability samples. This impact was expected to result from varying degrees of freedom on the part of interviewers to interview easily available or cooperative individuals (thus producing substitutions). The analysis was conducted in a cross-cultural context using data from the first four rounds of the European Social Survey (ESS). Substitutions are measured as deviations from a 50/50 gender ratio in subsamples with heterosexual couples. Significant deviations were found in numerous countries of the ESS. They were also found to be lowest in cases of samples with official registers of residents as sample frame (individual person register samples) if one partner was more difficult to contact than the other. This scope of substitutions did not differ across the ESS rounds and it was weakly correlated with payment and control procedures. It can be concluded from the results that individual person register samples are associated with higher sample quality.
Release date: 2014-06-27 - 6. Does the first impression count? Examining the effect of the welcome screen design on the response rate ArchivedArticles and reports: 12-001-X201300211885Description:
Web surveys are generally connected with low response rates. Common suggestions in textbooks on Web survey research highlight the importance of the welcome screen in encouraging respondents to take part. The importance of this screen has been empirically proven in research, showing that most respondents breakoff at the welcome screen. However, there has been little research on the effect of the design of this screen on the level of the breakoff rate. In a study conducted at the University of Konstanz, three experimental treatments were added to a survey of the first-year student population (2,629 students) to assess the impact of different design features of this screen on the breakoff rates. The methodological experiments included varying the background color of the welcome screen, varying the promised task duration on this first screen, and varying the length of the information provided on the welcome screen explaining the privacy rights of the respondents. The analyses show that the longer stated length and the more attention given to explaining privacy rights on the welcome screen, the fewer respondents started and completed the survey. However, the use of a different background color does not result in the expected significant difference.
Release date: 2014-01-15 - Articles and reports: 82-003-X201100211437Geography: CanadaDescription:
This article examines the internal consistency of the English and French versions of the Medical Outcomes Study social support scale for a sample of older adults. The second objective is to conduct a confirmatory factor analysis to assess the factor structure of the English and French versions of the scale. A third purpose is to determine if the items comprising the scale operate in the same way for English- and French-speaking respondents.
Release date: 2011-05-18 - 8. Opening remarks of the Symposium 2008: Data Collection: Challenges, Achievements and New Directions ArchivedArticles and reports: 11-522-X200800010920Description:
On behalf of Statistics Canada, I would like to welcome you all, friends and colleagues, to Symposium 2008. This the 24th International Symposium organized by Statistics Canada on survey methodology.
Release date: 2009-12-03 - Articles and reports: 11-522-X200800010946Description:
In the mid 1990s the first question testing unit was set-up in the UK Office for National Statistics (ONS). The key objective of the unit was to develop and test the questions and questionnaire for the 2001 Census. Since the establishment of this unit the area has been expanded into a Data Collection Methodology (DCM) Centre of Expertise which now sits in the Methodology Directorate. The DCM centre has three branches which support DCM work for social surveys, business surveys, the Census and external organisations.
In the past ten years DCM has achieved a variety of things. For example, introduced survey methodology involvement in the development and testing of business survey question(naire)s; introduced a mix-method approach to the development of questions and questionnaires; developed and implemented standards e.g. for the 2011 census questionnaire & showcards; and developed and delivered DCM training events.
This paper will provide an overview of data collection methodology at the ONS from the perspective of achievements and challenges. It will cover areas such as methods, staff (e.g. recruitment, development and field security), and integration with the survey process.
Release date: 2009-12-03 - Articles and reports: 11-522-X200800010956Description:
The use of Computer Audio-Recorded Interviewing (CARI) as a tool to identify interview falsification is quickly growing in survey research (Biemer, 2000, 2003; Thissen, 2007). Similarly, survey researchers are starting to expand the usefulness of CARI by combining recordings with coding to address data quality (Herget, 2001; Hansen, 2005; McGee, 2007). This paper presents results from a study included as part of the establishment-based National Center for Health Statistics' National Home and Hospice Care Survey (NHHCS) which used CARI behavior coding and CARI-specific paradata to: 1) identify and correct problematic interviewer behavior or question issues early in the data collection period before either negatively impact data quality, and; 2) identify ways to diminish measurement error in future implementations of the NHHCS. During the first 9 weeks of the 30-week field period, CARI recorded a subset of questions from the NHHCS application for all interviewers. Recordings were linked with the interview application and output and then coded in one of two modes: Code by Interviewer or Code by Question. The Code by Interviewer method provided visibility into problems specific to an interviewer as well as more generalized problems potentially applicable to all interviewers. The Code by Question method yielded data that spoke to understandability of the questions and other response problems. In this mode, coders coded multiple implementations of the same question across multiple interviewers. Using the Code by Question approach, researchers identified issues with three key survey questions in the first few weeks of data collection and provided guidance to interviewers in how to handle those questions as data collection continued. Results from coding the audio recordings (which were linked with the survey application and output) will inform question wording and interviewer training in the next implementation of the NHHCS, and guide future enhancement of CARI and the coding system.
Release date: 2009-12-03
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Analysis (41) (0 to 10 of 41 results)
- Articles and reports: 12-001-X201800254957Description:
When a linear imputation method is used to correct non-response based on certain assumptions, total variance can be assigned to non-responding units. Linear imputation is not as limited as it seems, given that the most common methods – ratio, donor, mean and auxiliary value imputation – are all linear imputation methods. We will discuss the inference framework and the unit-level decomposition of variance due to non-response. Simulation results will also be presented. This decomposition can be used to prioritize non-response follow-up or manual corrections, or simply to guide data analysis.
Release date: 2018-12-20 - Articles and reports: 75-006-X201800154979Description:
In anticipation of legislation (Bill C-45) legalizing cannabis for non medical use coming into force, Statistics Canada has undertaken a thorough review of its capability to evaluate the bill’s impact. This document focuses on the agency’s social statistics system—specifically, surveys and administrative databases designed to collect information related to health and health care; law enforcement; the justice system and community safety and well-being; education; and labour.
Release date: 2018-10-12 - 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 - 4. Introducing Adaptive Design Elements in the Panel Study “Labour Market and Social Security” (PASS) ArchivedArticles and reports: 11-522-X201300014277Description:
This article gives an overview of adaptive design elements introduced to the PASS panel survey in waves four to seven. The main focus is on experimental interventions in later phases of the fieldwork. These interventions aim at balancing the sample by prioritizing low-propensity sample members. In wave 7, interviewers received a double premium for completion of interviews with low-propensity cases in the final phase of the fieldwork. This premium was restricted to a random half of the cases with low estimated response propensity and no final status after four months of prior fieldwork. This incentive was effective in increasing interviewer effort, however, led to no significant increase in response rates.
Release date: 2014-10-31 - 5. The influence of sampling method and interviewers on sample realization in the European Social Survey ArchivedArticles and reports: 12-001-X201400114001Description:
This article addresses the impact of different sampling procedures on realised sample quality in the case of probability samples. This impact was expected to result from varying degrees of freedom on the part of interviewers to interview easily available or cooperative individuals (thus producing substitutions). The analysis was conducted in a cross-cultural context using data from the first four rounds of the European Social Survey (ESS). Substitutions are measured as deviations from a 50/50 gender ratio in subsamples with heterosexual couples. Significant deviations were found in numerous countries of the ESS. They were also found to be lowest in cases of samples with official registers of residents as sample frame (individual person register samples) if one partner was more difficult to contact than the other. This scope of substitutions did not differ across the ESS rounds and it was weakly correlated with payment and control procedures. It can be concluded from the results that individual person register samples are associated with higher sample quality.
Release date: 2014-06-27 - 6. Does the first impression count? Examining the effect of the welcome screen design on the response rate ArchivedArticles and reports: 12-001-X201300211885Description:
Web surveys are generally connected with low response rates. Common suggestions in textbooks on Web survey research highlight the importance of the welcome screen in encouraging respondents to take part. The importance of this screen has been empirically proven in research, showing that most respondents breakoff at the welcome screen. However, there has been little research on the effect of the design of this screen on the level of the breakoff rate. In a study conducted at the University of Konstanz, three experimental treatments were added to a survey of the first-year student population (2,629 students) to assess the impact of different design features of this screen on the breakoff rates. The methodological experiments included varying the background color of the welcome screen, varying the promised task duration on this first screen, and varying the length of the information provided on the welcome screen explaining the privacy rights of the respondents. The analyses show that the longer stated length and the more attention given to explaining privacy rights on the welcome screen, the fewer respondents started and completed the survey. However, the use of a different background color does not result in the expected significant difference.
Release date: 2014-01-15 - Articles and reports: 82-003-X201100211437Geography: CanadaDescription:
This article examines the internal consistency of the English and French versions of the Medical Outcomes Study social support scale for a sample of older adults. The second objective is to conduct a confirmatory factor analysis to assess the factor structure of the English and French versions of the scale. A third purpose is to determine if the items comprising the scale operate in the same way for English- and French-speaking respondents.
Release date: 2011-05-18 - 8. Opening remarks of the Symposium 2008: Data Collection: Challenges, Achievements and New Directions ArchivedArticles and reports: 11-522-X200800010920Description:
On behalf of Statistics Canada, I would like to welcome you all, friends and colleagues, to Symposium 2008. This the 24th International Symposium organized by Statistics Canada on survey methodology.
Release date: 2009-12-03 - Articles and reports: 11-522-X200800010946Description:
In the mid 1990s the first question testing unit was set-up in the UK Office for National Statistics (ONS). The key objective of the unit was to develop and test the questions and questionnaire for the 2001 Census. Since the establishment of this unit the area has been expanded into a Data Collection Methodology (DCM) Centre of Expertise which now sits in the Methodology Directorate. The DCM centre has three branches which support DCM work for social surveys, business surveys, the Census and external organisations.
In the past ten years DCM has achieved a variety of things. For example, introduced survey methodology involvement in the development and testing of business survey question(naire)s; introduced a mix-method approach to the development of questions and questionnaires; developed and implemented standards e.g. for the 2011 census questionnaire & showcards; and developed and delivered DCM training events.
This paper will provide an overview of data collection methodology at the ONS from the perspective of achievements and challenges. It will cover areas such as methods, staff (e.g. recruitment, development and field security), and integration with the survey process.
Release date: 2009-12-03 - Articles and reports: 11-522-X200800010956Description:
The use of Computer Audio-Recorded Interviewing (CARI) as a tool to identify interview falsification is quickly growing in survey research (Biemer, 2000, 2003; Thissen, 2007). Similarly, survey researchers are starting to expand the usefulness of CARI by combining recordings with coding to address data quality (Herget, 2001; Hansen, 2005; McGee, 2007). This paper presents results from a study included as part of the establishment-based National Center for Health Statistics' National Home and Hospice Care Survey (NHHCS) which used CARI behavior coding and CARI-specific paradata to: 1) identify and correct problematic interviewer behavior or question issues early in the data collection period before either negatively impact data quality, and; 2) identify ways to diminish measurement error in future implementations of the NHHCS. During the first 9 weeks of the 30-week field period, CARI recorded a subset of questions from the NHHCS application for all interviewers. Recordings were linked with the interview application and output and then coded in one of two modes: Code by Interviewer or Code by Question. The Code by Interviewer method provided visibility into problems specific to an interviewer as well as more generalized problems potentially applicable to all interviewers. The Code by Question method yielded data that spoke to understandability of the questions and other response problems. In this mode, coders coded multiple implementations of the same question across multiple interviewers. Using the Code by Question approach, researchers identified issues with three key survey questions in the first few weeks of data collection and provided guidance to interviewers in how to handle those questions as data collection continued. Results from coding the audio recordings (which were linked with the survey application and output) will inform question wording and interviewer training in the next implementation of the NHHCS, and guide future enhancement of CARI and the coding system.
Release date: 2009-12-03
Reference (9)
Reference (9) ((9 results))
- Surveys and statistical programs – Documentation: 89-634-X2009008Geography: CanadaDescription:
The Strengths and Difficulties Questionnaire (SDQ) is a parent-reported instrument designed to provide information on children's behaviours and relationships. The SDQ consists of 25 items which are grouped into five subscales: (1) pro-social, (2) inattention-hyperactivity, (3) emotional symptoms, (4) conduct problems, and (5) peer problems. The SDQ was used to provide information on children aged 2 to 5 years in the 2006 Aboriginal Children's Survey (ACS). Though validated on general populations, the constructs of the SDQ have not been validated for off-reserve First Nations, Métis and Inuit children in Canada. The first objective of this evaluation is to examine if the five subscales of the SDQ demonstrate construct validity and reliability for off-reserve First Nations, Métis and Inuit children. The second objective is to examine if an alternative set of subscales, using the 25 SDQ items, may be more valid and reliable for off-reserve First Nations, Métis and Inuit children.
Release date: 2009-11-25 - Surveys and statistical programs – Documentation: 89-552-M2005013Geography: CanadaDescription:
This report documents key aspects of the development of the International Adult Literacy and Life Skills Survey (ALL) - its theoretical roots, the domains selected for possible assessment, the approaches taken to assessment in each domain and the criteria that were employed to decide which domains were to be carried in the final design. As conceived, the ALL survey was meant to build on the success of the International Adult Literacy Survey (IALS) assessments by extending the range of skills assessed and by improving the quality of the assessment methods employed. This report documents several successes including: · the development of a new framework and associated robust measures for problem solving · the development of a powerful numeracy framework and associated robust measures · the specification of frameworks for practical cognition, teamwork and information and communication technology literacy The report also provides insight into those domains where development failed to yield approaches to assessment of sufficient quality, insight that reminds us that scientific advance in this domain is hard won.
Release date: 2005-03-24 - Surveys and statistical programs – Documentation: 75F0002M2002003Description:
This paper presents the questions, possible responses and question flows for the 2001 Survey of Labour and Income Dynamics (SLID) preliminary questionnaire.
Release date: 2002-12-04 - Surveys and statistical programs – Documentation: 11-522-X20010016308Description:
This paper discusses in detail issues dealing with the technical aspects of designing and conducting surveys. It is intended for an audience of survey methodologists.
The Census Bureau uses response error analysis to evaluate the effectiveness of survey questions. For a given survey, questions that are deemed critical to the survey or considered problematic from past examination are selected for analysis. New or revised questions are prime candidates for re-interview. Re-interview is a new interview where a subset of questions from the original interview are re-asked to a sample of the survey respondents. For each re-interview question, the proportion of respondents who give inconsistent responses is evaluated. The "Index of Inconsistency" is used as the measure of response variance. Each question is labelled low, moderate, or high in response variance. In high response variance cases, the questions are put through cognitive testing, and modifications to the question are recommended.
The Schools and Staffing Survey (SASS) sponsored by The National Center for Education Statistics (NCES), is also investigated for response error analysis and the possible relationships between inconsistent responses and characteristics of the schools and teachers in that survey. Results of this analysis can be used to change survey procedures and improve data quality.
Release date: 2002-09-12 - Surveys and statistical programs – Documentation: 13F0026M2001001Description:
This document briefly describes the Survey of Financial Security and presents the questionnaire used for the interview. The Survey of Financial Security (SFS) was conducted during May and June of 1999. The information was collected by personal interview, using a paper questionnaire. Introductory material was sent to the respondent prior to the first contact by the interviewer.
Approximately 23,000 dwellings were selected for the sample, most using the Labour Force Survey frame. The high-income sample was drawn from geographic areas with a larger concentration of high-income households.
The survey collected the following type of information: (1) general demographic information on all members of the family, (2) more detailed information on the education, employment, income, etc., on those family members 15 years of age and older, and, (3) asset and debt information on the family as a whole.
Release date: 2001-01-24 - Surveys and statistical programs – Documentation: 13F0026M1999006Description:
Although income and expenditure data provide an indication of current consumption and ability to purchase goods and services, they provide little information on the long-term ability of families to sustain themselves. The results of this survey will provide information on the net worth (wealth) of Canadian families, that is, the value of their assets less their debts.
This paper examines the objectives of the survey, how the survey has changed since 1984, the types of questions being asked and information that will be provided, as well as other survey background. An accompanying table outlines the content of the questionnaire. The intent of this paper is to describe the work done to date and the next steps for this important subject.
Release date: 1999-09-27 - Surveys and statistical programs – Documentation: 75F0002M1993005Description:
This paper presents general observations from the members of the Survey of Labour and Income Dynamics head office project team, a summary of responses by a subset of interviewers in the test who were asked to complete a debriefing questionnaire after completing the test and detailed comments by the observers from Head Office.
Release date: 1995-12-30 - Surveys and statistical programs – Documentation: 75F0002M1995002Description:
This paper presents the Survey of Labour and Income Dynamics (SLID) coding structure for the major fields of study for postsecondary graduates. It uses data collected in the 1991 Census of Population.
Release date: 1995-12-30 - Surveys and statistical programs – Documentation: 75F0002M1995007Description:
This paper describes the impact of computer-assisted interviewing (CAI) on the quality of the Survey of Labour and Income Dynamics (SLID) data in three content areas: labour force activity, respondent-sensitive sources of income, and household relationships.
Release date: 1995-12-30
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