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Journal Article
Demography (1988) 25 (2): 307–314.
Published: 01 May 1988
...John G. Haaga Abstract This article examines retest reliability and digit preference in retrospective survey data on breastfeeding duration and type of supplementary food, covering three decades and reported by more than 1200 Malaysian women. Women with little or no education, rural residents...
Journal Article
Demography (2017) 54 (2): 701–720.
Published: 23 February 2017
... a unique data set on perinatal outcomes collected by the EURO-PERISTAT ( 2008 ) project that allows for comparable measures of LFMR, ENMR, and IFM. The PERISTAT project was created in 1999 as part of the European Union’s Health Monitoring Programme in order to “develop valid and reliable indicators...
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Journal Article
Demography (2007) 44 (4): 729–745.
Published: 01 November 2007
... and the evaluation of family planning programs. Yet existing methods for estimating unwanted fertility are known to be defective, among other reasons because they rely on subjective data whose validity and reliability are questionable. In this article, we propose a new estimator of unwanted fertility—the “aggregate...
Journal Article
Demography (1977) 14 (1): 97–102.
Published: 01 February 1977
... of schooling. This new measurement procedure utilizes a graphic scale rather than verbal responses, and it places family size decisions within the context of several other major life cycle decisions. One month reliability data for the measurement technique were obtained from a sample of 107 school children...
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 (2017) 54 (3): 1203–1213.
Published: 10 April 2017
... estimates of life expectancy and lifespan variation by education in the United States using more reliable data from the National Health Interview Survey. Contrary to prior conclusions in the literature, I find that life expectancy increased or stagnated since 1990 among all education-race-sex groups except...
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Journal Article
Demography (1967) 4 (2): 688–709.
Published: 01 June 1967
... and (2) children-ever-born to women by age. The available data, while reliable in certain respects, are deficient in others. Thus, the reports on children born during the year preceding the survey are acceptably accurate for the children who have survived but are insufficient for the children who have...
Journal Article
Demography (2009) 46 (1): 27–41.
Published: 01 February 2009
... scale was developed to code high school senior class yearbook photographs of WLS participants for relative body mass (RBM). Our analyses show that although imperfect, the RBM scale is reliable (α = .91) and meets several criteria of validity as a measure of body mass. Measured at ages 17–18...
Journal Article
Demography (2009) 46 (3): 589–603.
Published: 01 August 2009
... to erroneous research conclusions. Because U.S. census microdata samples are among the most widely used sources for social science and policy research, the need for reliable standard error estimation is critical. We evaluate the historical microdata samples of the Integrated Public Use Microdata Series (IPUMS...
Journal Article
Demography (2002) 39 (3): 573–586.
Published: 01 August 2002
... little effect on recent marital fertility rates. Modeling of discordant reports indicates that fertility reports are more likely to be underestimated by both men and women for their earliest marriages. Reliable fertility data can be collected from men in this population. 14 1 2011 ©...
Journal Article
Demography (1995) 32 (1): 81–96.
Published: 01 February 1995
... produced high estimates of test-retest reliability. We found support for only two dimensions of demand, intensity and certainty; potential measures of centrality had relatively low associations with any of the latent dimensions. Demand certainty improved prediction of fertility expectations beyond...
Journal Article
Demography (1991) 28 (2): 229–247.
Published: 01 May 1991
...Ulla Larsen; Jane Menken Abstract This paper extends work on measures of population proportions sterile to propose a new estimator of an individual woman’s age at sterility and consequently her sterility status at given ages. Accuracy and reliability, examined in a simulation study, appear...
Journal Article
Demography (1983) 20 (4): 491–506.
Published: 01 November 1983
...Jan M. Hoem Abstract In retrospective studies of individual life histories, some or all of the information pertaining to periods prior to the latest event interval of interest will sometimes be left out. This simplifies data collection, and it may improve the reliability of the data actually...
Journal Article
Demography (1989) 26 (1): 149–159.
Published: 01 February 1989
... and produces reliable postcensal estimates for areas with a wide variety of median income levels and numbers of households. 7 1 2011 © Population Association of America 1989 1989 Income Distribution Median Income Lorenz Curve Lognormal Model Lognormal Probability References...
Journal Article
Demography (1988) 25 (2): 189–204.
Published: 01 May 1988
...Joan R. Kahn; William D. Kalsbeek; Sandra L. Hofferth Abstract In this article, we examine the reliability with which teenage sexual activity was reported in three recent national surveys. Unlike other study-effects analyses of objective demographic phenomena such as births and marriages, ours...
Journal Article
Demography (1971) 8 (2): 271–295.
Published: 01 May 1971
... with particular emphasis on the benefits to be derived in increased quality and reliability of data, increased timeliness and reduction in respondent burden. The Quality Control procedures are described. The Post-censal Evaluation and Data Dissemination programmes are also dealt with. 30 12 2010 ©...
Journal Article
Demography (1969) 6 (4): 435–444.
Published: 01 November 1969
... who intended more children, 67 percent of the exposed were timing failures. Women not exposed to the risk of timing failure because they claimed to want all of their pregnancies as soon as possible had similar characteristics to women reporting failures; accordingly the reliability of their reports...
Journal Article
Demography (1970) 7 (3): 349–360.
Published: 01 August 1970
... moments of the month of first conception. A critical analysis of this method has shown that moment estimators of a and b are moderately reliable only within a specified range of values of a . Outside this range, either the estimators are extremely inefficient or their variances are not defined at all...
Journal Article
Demography (1971) 8 (1): 123–139.
Published: 01 February 1971
... the inherent limitations of the method and its merits compared with period migration estimates by the census survival ratio method and life table survival ratio method, suggests that the net migration estimates for the Canadian born by the place of birth survival ratio method are probably more reliable than...
Journal Article
Demography (1966) 3 (2): 378–392.
Published: 01 June 1966
... change, the large volume (and selectivity) of reverse or return migration is especially note-worthy. The paper concludes with a methodological evaluation of the reliability and validity of duration-of-residence data and indicates that the relatively simple techniques of enumeration and tabulation...