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All (5) ((5 results))

  • 1. A framework for measuring and reducing nonresponse in surveys Archived
    Articles and reports: 12-001-X199300114474
    Description:

    The need for standards introduced for the gathering and reporting of information on nonresponse across surveys within a statistical agency is discussed. Standards being adopted at Statistics Canada are then described. Measures to reduce nonresponse undertaken at different stages in the design of surveys at Statistics Canada that have a bearing on nonresponse are described. These points are illustrated by examining nonresponse experiences for two major surveys at Statistics Canada.

    Release date: 1993-06-15
  • 2. On the definitions of response rates Archived
    Articles and reports: 12-001-X198600114437
    Description:

    In this paper, different types of response/nonresponse and associated measures such as rates are provided and discussed together with their implications on both estimation and administrative procedures. The missing data problems lead to inconsistent terminology related to nonresponse such as completion rates, eligibility rates, contact rates, and refusal rates, many of which can be defined in different ways. In addition, there are item nonresponse rates as well as characteristic response rates. Depending on the uses, the rates may be weighted or unweighted.

    Release date: 1986-06-16
  • 3. Some aspects of nonresponse adjustments Archived
    Articles and reports: 12-001-X198500114359
    Description:

    Unit and item nonresponse almost always occur in surveys and censuses. The larger its size the larger its potential effect will be on survey estimates. It is, therefore, important to cope with it at every stage where they can be affected. At varying degrees the size of nonresponse can be coped with at design, field and processing stages. The nonresponse problems have an impact on estimation formulas for various statistics as a result of imputations and weight adjustments along with survey weights in the estimates of means, totals, or other statistics. The formulas may be decomposed into components that include response errors, the effect of weight adjustment for unit nonresponse, and the effect of substitution for nonresponse. The impacts of the design, field, and processing stages on the components of the estimates are examined.

    Release date: 1985-06-14
  • 4. Some methods for updating sample survey frames and their effects on estimation Archived
    Articles and reports: 12-001-X197800254834
    Description: Frames designed for continuous surveys are sometimes used for ad hoc surveys which require selection of sampling units separate from those selected for the continuous survey. This paper presents an unbiased extension of Keyfitz’s (1951) sample updating method to the case where a portion of the frame has been reserved for surveys other than the main continuous survey. A simple although biased alternative is presented.

    The scope under Platek and Singh’s (1975) design strategy for an area based continuous survey requiring updating is then expanded to encompass rotation of first stage units, establishment of a separate special survey sub-frame, and procedures to prevent re-selection of ultimate sampling units.

    The methods are evaluated in a Monte Carlo study using Census data to simulate the design for the Canadian Labour Force Survey.
    Release date: 1978-12-15
  • 5. Non-response and imputation Archived
    Articles and reports: 12-001-X197800254830
    Description:

    The problems of dealing with non-response at various stages of survey planning are discussed with implications for the mean square error, practicality and possible advantages and disadvantages. Conceptual issues of editing and imputation are also considered with regard to complexity and levels of imputation. The methods of imputation include weighting, duplication, and substitution of historical records. The paper includes some methodology on the bias and variance.

    Release date: 1978-12-15
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Articles and reports (5)

Articles and reports (5) ((5 results))

  • 1. A framework for measuring and reducing nonresponse in surveys Archived
    Articles and reports: 12-001-X199300114474
    Description:

    The need for standards introduced for the gathering and reporting of information on nonresponse across surveys within a statistical agency is discussed. Standards being adopted at Statistics Canada are then described. Measures to reduce nonresponse undertaken at different stages in the design of surveys at Statistics Canada that have a bearing on nonresponse are described. These points are illustrated by examining nonresponse experiences for two major surveys at Statistics Canada.

    Release date: 1993-06-15
  • 2. On the definitions of response rates Archived
    Articles and reports: 12-001-X198600114437
    Description:

    In this paper, different types of response/nonresponse and associated measures such as rates are provided and discussed together with their implications on both estimation and administrative procedures. The missing data problems lead to inconsistent terminology related to nonresponse such as completion rates, eligibility rates, contact rates, and refusal rates, many of which can be defined in different ways. In addition, there are item nonresponse rates as well as characteristic response rates. Depending on the uses, the rates may be weighted or unweighted.

    Release date: 1986-06-16
  • 3. Some aspects of nonresponse adjustments Archived
    Articles and reports: 12-001-X198500114359
    Description:

    Unit and item nonresponse almost always occur in surveys and censuses. The larger its size the larger its potential effect will be on survey estimates. It is, therefore, important to cope with it at every stage where they can be affected. At varying degrees the size of nonresponse can be coped with at design, field and processing stages. The nonresponse problems have an impact on estimation formulas for various statistics as a result of imputations and weight adjustments along with survey weights in the estimates of means, totals, or other statistics. The formulas may be decomposed into components that include response errors, the effect of weight adjustment for unit nonresponse, and the effect of substitution for nonresponse. The impacts of the design, field, and processing stages on the components of the estimates are examined.

    Release date: 1985-06-14
  • 4. Some methods for updating sample survey frames and their effects on estimation Archived
    Articles and reports: 12-001-X197800254834
    Description: Frames designed for continuous surveys are sometimes used for ad hoc surveys which require selection of sampling units separate from those selected for the continuous survey. This paper presents an unbiased extension of Keyfitz’s (1951) sample updating method to the case where a portion of the frame has been reserved for surveys other than the main continuous survey. A simple although biased alternative is presented.

    The scope under Platek and Singh’s (1975) design strategy for an area based continuous survey requiring updating is then expanded to encompass rotation of first stage units, establishment of a separate special survey sub-frame, and procedures to prevent re-selection of ultimate sampling units.

    The methods are evaluated in a Monte Carlo study using Census data to simulate the design for the Canadian Labour Force Survey.
    Release date: 1978-12-15
  • 5. Non-response and imputation Archived
    Articles and reports: 12-001-X197800254830
    Description:

    The problems of dealing with non-response at various stages of survey planning are discussed with implications for the mean square error, practicality and possible advantages and disadvantages. Conceptual issues of editing and imputation are also considered with regard to complexity and levels of imputation. The methods of imputation include weighting, duplication, and substitution of historical records. The paper includes some methodology on the bias and variance.

    Release date: 1978-12-15
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