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All (105)

All (105) (0 to 10 of 105 results)

1. Does the first impression count? Examining the effect of the welcome screen design on the response rate Archived
Articles and reports: 12-001-X201300211885
Description:
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
2. Data collection: Experiences and lessons learned by asking sensitive questions in a remote coca growing region in Peru Archived
Articles and reports: 12-001-X201200211752
Description:
Coca is a native bush from the Amazon rainforest from which cocaine, an illegal alkaloid, is extracted. Asking farmers about the extent of their coca cultivation areas is considered a sensitive question in remote coca growing regions in Peru. As a consequence, farmers tend not to participate in surveys, do not respond to the sensitive question(s), or underreport their individual coca cultivation areas. There is a political and policy concern in accurately and reliably measuring coca growing areas, therefore survey methodologists need to determine how to encourage response and truthful reporting of sensitive questions related to coca growing. Specific survey strategies applied in our case study included establishment of trust with farmers, confidentiality assurance, matching interviewer-respondent characteristics, changing the format of the sensitive question(s), and non enforcement of absolute isolation of respondents during the survey. The survey results were validated using satellite data. They suggest that farmers tend to underreport their coca areas to 35 to 40% of their true extent.
Release date: 2012-12-19
3. Why one should incorporate the design weights when adjusting for unit nonresponse using response homogeneity groups Archived
Articles and reports: 12-001-X201200111689
Description:
When there is unit (whole-element) nonresponse in a survey sample drawn using probability-sampling principles, a common practice is to divide the sample into mutually exclusive groups in such a way that it is reasonable to assume that each sampled element in a group were equally likely to be a survey nonrespondent. In this way, unit response can be treated as an additional phase of probability sampling with the inverse of the estimated probability of unit response within a group serving as an adjustment factor when computing the final weights for the group's respondents. If the goal is to estimate the population mean of a survey variable that roughly behaves as if it were a random variable with a constant mean within each group regardless of the original design weights, then incorporating the design weights into the adjustment factors will usually be more efficient than not incorporating them. In fact, if the survey variable behaved exactly like such a random variable, then the estimated population mean computed with the design-weighted adjustment factors would be nearly unbiased in some sense (i.e., under the combination of the original probability-sampling mechanism and a prediction model) even when the sampled elements within a group are not equally likely to respond.
Release date: 2012-06-27
4. Results from the Canadian Household Panel Survey Pilot Archived
Articles and reports: 89-648-X2011001
Geography: Canada
Description:
In January 2006, a conference on longitudinal surveys hosted by Statistics Canada, the Social and Humanities Research Council of Canada (SSHRC) and the Canadian Institute of Health Research (CIHR) concluded that Canada lacks a longitudinal survey which collects information on multiple subjects such as family, human capital, labour health and follows respondents for a long period of time. Following this conference, funds were received from the Policy Research Data Gaps fund (PRDG) to support a pilot survey for a new Canadian Household Panel Survey (CHPS-Pilot). Consultations on the design and content were held with academic and policy experts in 2007 and 2008, and a pilot survey was conducted in the fall of 2008. The objectives of the pilot survey were to (1) test a questionnaire, evaluate interview length and measure the quality of data collected, (2) evaluate several design features; and (3) test reactions to the survey from respondents and field workers. The pilot survey achieved a response rate of 76%, with a median household interview time of 64 minutes. Several innovative design features were tested, and found to be viable. Response to the survey, whether from respondents or interviewers, was generally positive. This paper highlights these and other results from the CHPS-Pilot.
Release date: 2011-09-14
5. Psychometric properties, factorial structure, and measurement invariance of the English and French versions of the Medical Outcomes Study social support scale Archived
Articles and reports: 82-003-X201100211437
Geography: Canada
Description:
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
6. Collecting data for poverty and vulnerability assessment in remote areas in Sub-Saharan Africa Archived
Articles and reports: 12-001-X201000211383
Description:
Data collection for poverty assessments in Africa is time consuming, expensive and can be subject to numerous constraints. In this paper we present a procedure to collect data from poor households involved in small-scale inland fisheries as well as agricultural activities. A sampling scheme has been developed that captures the heterogeneity in ecological conditions and the seasonality of livelihood options. Sampling includes a three point panel survey of 300 households. The respondents belong to four different ethnic groups randomly chosen from three strata, each representing a different ecological zone. In the first part of the paper some background information is given on the objectives of the research, the study site and survey design, which were guiding the data collection process. The second part of the paper discusses the typical constraints that are hampering empirical work in Sub-Saharan Africa, and shows how different challenges have been resolved. These lessons could guide researchers in designing appropriate socio-economic surveys in comparable settings.
Release date: 2010-12-21
7. Respondent differences and length of data collection in the Behavioral Risk Factor Surveillance System Archived
Articles and reports: 12-001-X201000211384
Description:
The current economic downturn in the US could challenge costly strategies in survey operations. In the Behavioral Risk Factor Surveillance System (BRFSS), ending the monthly data collection at 31 days could be a less costly alternative. However, this could potentially exclude a portion of interviews completed after 31 days (late responders) whose respondent characteristics could be different in many respects from those who completed the survey within 31 days (early responders). We examined whether there are differences between the early and late responders in demographics, health-care coverage, general health status, health risk behaviors, and chronic disease conditions or illnesses. We used 2007 BRFSS data, where a representative sample of the noninstitutionalized adult U.S. population was selected using a random digit dialing method. Late responders were significantly more likely to be male; to report race/ethnicity as Hispanic; to have annual income higher than $50,000; to be younger than 45 years of age; to have less than high school education; to have health-care coverage; to be significantly more likely to report good health; and to be significantly less likely to report hypertension, diabetes, or being obese. The observed differences between early and late responders on survey estimates may hardly influence national and state-level estimates. As the proportion of late responders may increase in the future, its impact on surveillance estimates should be examined before excluding from the analysis. Analysis on late responders only should combine several years of data to produce reliable estimates.
Release date: 2010-12-21
8. Chronic pain at ages 12 to 44 Archived
Articles and reports: 82-003-X201000411389
Geography: Canada
Description:
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
9. Criminal victimization in Canada, 2009 Archived
Articles and reports: 85-002-X201000211340
Geography: Province or territory
Description:
In 2009, as part of its General Social Survey program, Statistics Canada conducted a survey on victimization and public perceptions of crime and the justice system. It was the fifith time that the General Social Survey (GSS) had examined victimization - previous surveys were conducted in 2004, 1999, 1993 and 1988.
For the 2009 survey, interviews were conducted by telephone with approximately 19,500 respondents, aged 15 and older, living in the 10 provinces. Respondents were asked about their experiences with criminal victimization. Those respondents who had been victims of a crime in the previous 12 months were asked for detailed information on each incident, including when and where it occurred; whether the incident was reported to the police; and how they were affected by the experience.
This Juristat explores the overall trends and regional variations of criminal victimization, as well as the individual risk factors associated with victimization.
Release date: 2010-09-28
10. Opening remarks of the Symposium 2008: Data Collection: Challenges, Achievements and New Directions Archived
Articles and reports: 11-522-X200800010920
Description:
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

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Analysis (105)

Analysis (105) (0 to 10 of 105 results)

1. Does the first impression count? Examining the effect of the welcome screen design on the response rate Archived
Articles and reports: 12-001-X201300211885
Description:
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
2. Data collection: Experiences and lessons learned by asking sensitive questions in a remote coca growing region in Peru Archived
Articles and reports: 12-001-X201200211752
Description:
Coca is a native bush from the Amazon rainforest from which cocaine, an illegal alkaloid, is extracted. Asking farmers about the extent of their coca cultivation areas is considered a sensitive question in remote coca growing regions in Peru. As a consequence, farmers tend not to participate in surveys, do not respond to the sensitive question(s), or underreport their individual coca cultivation areas. There is a political and policy concern in accurately and reliably measuring coca growing areas, therefore survey methodologists need to determine how to encourage response and truthful reporting of sensitive questions related to coca growing. Specific survey strategies applied in our case study included establishment of trust with farmers, confidentiality assurance, matching interviewer-respondent characteristics, changing the format of the sensitive question(s), and non enforcement of absolute isolation of respondents during the survey. The survey results were validated using satellite data. They suggest that farmers tend to underreport their coca areas to 35 to 40% of their true extent.
Release date: 2012-12-19
3. Why one should incorporate the design weights when adjusting for unit nonresponse using response homogeneity groups Archived
Articles and reports: 12-001-X201200111689
Description:
When there is unit (whole-element) nonresponse in a survey sample drawn using probability-sampling principles, a common practice is to divide the sample into mutually exclusive groups in such a way that it is reasonable to assume that each sampled element in a group were equally likely to be a survey nonrespondent. In this way, unit response can be treated as an additional phase of probability sampling with the inverse of the estimated probability of unit response within a group serving as an adjustment factor when computing the final weights for the group's respondents. If the goal is to estimate the population mean of a survey variable that roughly behaves as if it were a random variable with a constant mean within each group regardless of the original design weights, then incorporating the design weights into the adjustment factors will usually be more efficient than not incorporating them. In fact, if the survey variable behaved exactly like such a random variable, then the estimated population mean computed with the design-weighted adjustment factors would be nearly unbiased in some sense (i.e., under the combination of the original probability-sampling mechanism and a prediction model) even when the sampled elements within a group are not equally likely to respond.
Release date: 2012-06-27
4. Results from the Canadian Household Panel Survey Pilot Archived
Articles and reports: 89-648-X2011001
Geography: Canada
Description:
In January 2006, a conference on longitudinal surveys hosted by Statistics Canada, the Social and Humanities Research Council of Canada (SSHRC) and the Canadian Institute of Health Research (CIHR) concluded that Canada lacks a longitudinal survey which collects information on multiple subjects such as family, human capital, labour health and follows respondents for a long period of time. Following this conference, funds were received from the Policy Research Data Gaps fund (PRDG) to support a pilot survey for a new Canadian Household Panel Survey (CHPS-Pilot). Consultations on the design and content were held with academic and policy experts in 2007 and 2008, and a pilot survey was conducted in the fall of 2008. The objectives of the pilot survey were to (1) test a questionnaire, evaluate interview length and measure the quality of data collected, (2) evaluate several design features; and (3) test reactions to the survey from respondents and field workers. The pilot survey achieved a response rate of 76%, with a median household interview time of 64 minutes. Several innovative design features were tested, and found to be viable. Response to the survey, whether from respondents or interviewers, was generally positive. This paper highlights these and other results from the CHPS-Pilot.
Release date: 2011-09-14
5. Psychometric properties, factorial structure, and measurement invariance of the English and French versions of the Medical Outcomes Study social support scale Archived
Articles and reports: 82-003-X201100211437
Geography: Canada
Description:
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
6. Collecting data for poverty and vulnerability assessment in remote areas in Sub-Saharan Africa Archived
Articles and reports: 12-001-X201000211383
Description:
Data collection for poverty assessments in Africa is time consuming, expensive and can be subject to numerous constraints. In this paper we present a procedure to collect data from poor households involved in small-scale inland fisheries as well as agricultural activities. A sampling scheme has been developed that captures the heterogeneity in ecological conditions and the seasonality of livelihood options. Sampling includes a three point panel survey of 300 households. The respondents belong to four different ethnic groups randomly chosen from three strata, each representing a different ecological zone. In the first part of the paper some background information is given on the objectives of the research, the study site and survey design, which were guiding the data collection process. The second part of the paper discusses the typical constraints that are hampering empirical work in Sub-Saharan Africa, and shows how different challenges have been resolved. These lessons could guide researchers in designing appropriate socio-economic surveys in comparable settings.
Release date: 2010-12-21
7. Respondent differences and length of data collection in the Behavioral Risk Factor Surveillance System Archived
Articles and reports: 12-001-X201000211384
Description:
The current economic downturn in the US could challenge costly strategies in survey operations. In the Behavioral Risk Factor Surveillance System (BRFSS), ending the monthly data collection at 31 days could be a less costly alternative. However, this could potentially exclude a portion of interviews completed after 31 days (late responders) whose respondent characteristics could be different in many respects from those who completed the survey within 31 days (early responders). We examined whether there are differences between the early and late responders in demographics, health-care coverage, general health status, health risk behaviors, and chronic disease conditions or illnesses. We used 2007 BRFSS data, where a representative sample of the noninstitutionalized adult U.S. population was selected using a random digit dialing method. Late responders were significantly more likely to be male; to report race/ethnicity as Hispanic; to have annual income higher than $50,000; to be younger than 45 years of age; to have less than high school education; to have health-care coverage; to be significantly more likely to report good health; and to be significantly less likely to report hypertension, diabetes, or being obese. The observed differences between early and late responders on survey estimates may hardly influence national and state-level estimates. As the proportion of late responders may increase in the future, its impact on surveillance estimates should be examined before excluding from the analysis. Analysis on late responders only should combine several years of data to produce reliable estimates.
Release date: 2010-12-21
8. Chronic pain at ages 12 to 44 Archived
Articles and reports: 82-003-X201000411389
Geography: Canada
Description:
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
9. Criminal victimization in Canada, 2009 Archived
Articles and reports: 85-002-X201000211340
Geography: Province or territory
Description:
In 2009, as part of its General Social Survey program, Statistics Canada conducted a survey on victimization and public perceptions of crime and the justice system. It was the fifith time that the General Social Survey (GSS) had examined victimization - previous surveys were conducted in 2004, 1999, 1993 and 1988.
For the 2009 survey, interviews were conducted by telephone with approximately 19,500 respondents, aged 15 and older, living in the 10 provinces. Respondents were asked about their experiences with criminal victimization. Those respondents who had been victims of a crime in the previous 12 months were asked for detailed information on each incident, including when and where it occurred; whether the incident was reported to the police; and how they were affected by the experience.
This Juristat explores the overall trends and regional variations of criminal victimization, as well as the individual risk factors associated with victimization.
Release date: 2010-09-28
10. Opening remarks of the Symposium 2008: Data Collection: Challenges, Achievements and New Directions Archived
Articles and reports: 11-522-X200800010920
Description:
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

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Date modified:: 2024-04-19