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Search Results for Sampling error

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Journal Article
Demography (2017) 54 (6): 2375–2383.
Published: 02 October 2017
...D. Paul Sullins Abstract Because of classification errors reported by the National Center for Health Statistics, an estimated 42 % of the same-sex married partners in the sample for this study are misclassified different-sex married partners, thus calling into question findings regarding same-sex...
Includes: Supplementary data
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Published: 01 February 2021
Fig. 3 Out-of-sample error rate, with 95% confidence intervals calculated from bootstrapping with 100 repetitions. Testing samples are used for prediction. IBS = integrated Brier score. Cox-PH 2way = Cox proportional hazard two-way interaction model. Cox-PH 2way select = Cox proportional hazard More
Image
Published: 28 May 2019
Fig. 4 Median prediction error by sample fraction, with 50 samples for each sample fraction. For each sample, the median is calculated across all ages and all mortality schedules in each sample category (in-sample and out-of-sample). Whiskers extend to 10 % and 90 % quantiles. More
Journal Article
Demography (1968) 5 (1): 362–373.
Published: 01 March 1968
... than without sampling. Furthermore, an analysis indicates that if one uses census data continuously over a decade, and if sampling speeds up publication by two years, the over-all effect of sampling errors will be less than the longer use of out-dated statistics. A program for census planning...
Journal Article
Demography (2015) 52 (4): 1345–1355.
Published: 25 June 2015
...Erin R. Hamilton; Robin Savinar Abstract We examine the nature and degree of two sources of error in data on migration from Mexico to the United States in Mexican household-based surveys: (1) sampling error that results when whole households migrate and no one is left behind to report...
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Published: 28 May 2019
Fig. 3 Single-year age group SVD-Comp prediction errors for in-sample and out-of-sample mortality schedules for fifty 50 % samples. Errors are summarized over all in-sample and out-of-sample mortality schedules for the 50 samples. Whiskers extend to 10 % and 90 % quantiles. More
Journal Article
Demography (2017) 54 (1): 285–309.
Published: 19 January 2017
...Jeffrey Napierala; Nancy Denton Abstract The American Community Survey (ACS) provides valuable, timely population estimates but with increased levels of sampling error. Although the margin of error is included with aggregate estimates, it has not been incorporated into segregation indexes...
FIGURES | View all 7
First thumbnail for: Measuring Residential Segregation With the ACS: Ho...
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Journal Article
Demography (1978) 15 (3): 389–394.
Published: 01 August 1978
...Bernard Lazerwitz Abstract High, middle, and low estimates for a rare population group, the Jewish population of the United States, are presented together with their root mean square errors. These estimates are based upon a national sample whose essential survey design features are outlined...
Journal Article
Demography (2009) 46 (3): 589–603.
Published: 01 August 2009
...Michael Davern; Steven Ruggles; Tami Swenson; J. Trent Alexander; J. Michael Oakes Abstract Virtually all quantitative microdata used by social scientists derive from samples that incorporate clustering, strati cation, and weighting adjustments (Kish 1965, 1992). Such data can yield standard error...
Journal Article
Demography (1976) 13 (2): 273–286.
Published: 01 May 1976
...Barbara A. Bailar Abstract Often the reliability of survey data is examined only in relationship to sampling variances, excluding many other potential sources of error. If the sampling variance dominates the mean-square error, then few mistakes result by considering sampling variance only; however...
Journal Article
Demography (1977) 14 (4): 571–580.
Published: 01 November 1977
...Robert D. Retherford; Neil G. Bennett Abstract This paper develops methodology for estimating standard errors and confidence intervals for own-children estimates of age-specific birth rates and total fertility rates. The methodology applies to systematic samples of households, which are treated...
Journal Article
Demography (2023) 60 (5): 1387–1413.
Published: 01 October 2023
... sources of bias that are larger and opposite in sign to finite sampling bias: measurement error–induced attenuation bias and temporal pooling bias. The combination of these three sources of bias make it unclear how income segregation has trended. We formalize the three types of bias, providing a method...
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Includes: Supplementary data
Journal Article
Demography (2018) 55 (4): 1447–1473.
Published: 02 July 2018
... % from the estimate using the couple weight. 6 In most national DHS samples of couples and in nearly all the recent surveys, which have larger sample sizes than earlier surveys, differences of less than 5 % are within sampling error after design effects are taken into account. In addition, few would...
FIGURES
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Includes: Supplementary data
Journal Article
Demography (2009) 46 (1): 65–83.
Published: 01 February 2009
... in combination with survey data may therefore be highly advantageous even when the population data are known to have signi cant levels of nonsampling error. egression with sample survey data is the standard method for modeling the determi- nants of individual demographic events. Population data are typically...
Journal Article
Demography (1967) 4 (2): 759–772.
Published: 01 June 1967
... fase 1; Y (3) errores de confroniación; Summary This article presents estimates of the sources and the extent of observation errors in different questionnaires and methods used to collect birth and death data in the 1961–63 multi-purpose sample survey of Morocco. The questionnaires used in the analysis...
Journal Article
Demography (1973) 10 (4): 661–662.
Published: 01 November 1973
...George V. Zito 27 1 2011 © Population Association of America 1973 1973 Sampling Error Minimum Error Extended Discussion London School Simple Sampling DEMOGRAPHY© REPLY TO ESPENSHADE Volume 10, Numb~r 4 November 1973 George V. lito Department of Sociology, Syracuse...
Journal Article
Demography (2023) 60 (6): 1903–1921.
Published: 01 December 2023
..., this survey was conducted nearly two years after they completed their original census form. The considerable amount of time that elapsed between the actual census and the PES increased the chances of recall error or the experience of a demographic event. Finally, the PES is based on a sample and cannot...
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First thumbnail for: Evaluating the Accuracy of 2020 Census Block-Level...
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Journal Article
Demography (1970) 7 (2): 169–173.
Published: 01 May 1970
... even allowing for design losses in the sampling not taken into account in significance test procedures. For those interested in the sampling errors of the individual average deviations it must be remembered that they depend on the ex- tent of design losses in a complex sam- pIe, and that these design...
Journal Article
Demography (1988) 25 (3): 461–474.
Published: 01 August 1988
... over time. These data are then used to construct and test empirical confidence limits. We find that in this sample the distribution of absolute percentage errors remained relatively stable over time and data on past forecast errors provided very useful predictions of future forecast errors. 30 12...
Journal Article
Demography (2024) 61 (3): 627–642.
Published: 01 June 2024
... Vulnerability Index (SVI) and the Federal Emergency Management Agency's National Risk Index (NRI) are constructed by aggregating survey estimates. An important limitation of this approach is that these indices are developed without consideration of survey sampling error because they treat survey estimates...
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First thumbnail for: A Research Note on Community Resilience Estimates:...
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