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Measurement Interval

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Journal Article
Demography (1983) 20 (3): 273–284.
Published: 01 August 1983
... until first recorded event within a measurement interval, population parameters are estimated which provide basic denominator data for analyzing event occurrence. The models which we derive are especially suited to records which may include migration and population growth trends. The use of the models...
Journal Article
Demography (1995) 32 (1): 81–96.
Published: 01 February 1995
...Elizabeth Thomson; Yvonne Brandreth Abstract We propose a multidimensional conceptualization of fertility demand and evaluate potential measures of each dimension, using data from a telephone survey of Wisconsin residents age 18-34. Most of the measures met tests for interval-level measurement; all...
Journal Article
Demography (2020) 57 (1): 267–296.
Published: 22 January 2020
...Ian M. Timæus; Tom A. Moultrie Abstract This study applies survival analysis to the birth histories from 317 national surveys to model pathways to low fertility in 83 less-developed countries between 1965 and 2014. It presents period measures of parity progression, the length of birth intervals...
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Includes: Supplementary data
Journal Article
Demography (2009) 46 (2): 371–386.
Published: 01 May 2009
... particularly well, and neither is uniformly superior to the other. deally, computed demographic rates represent ratios of event counts to the total exposure to the risk of those events, during some time interval. Yet available data often consist of a series of current status measures taken at different times...
Journal Article
Demography (2017) 54 (6): 2201–2221.
Published: 06 November 2017
... for cohorts born between 1918 and 1957. The analysis reveals stable lifetime migration for men but increased lifetime migration for women associated with earlier ages at moving in adulthood and a compression of intervals between consecutive moves. The proposed cohort measures provide a more comprehensive...
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Includes: Supplementary data
Journal Article
Demography (1981) 18 (4): 487–509.
Published: 01 November 1981
... intervals (YUN). There are also two classes of non-exposure: years of sterilization (YS), measured from op- eration date to terminal date; and years of temporary non-exposure associated with each conception (YP), measured by the length of pregnancy subsequent to each conception, together with a two- month...
Journal Article
Demography (1971) 8 (4): 441–450.
Published: 01 November 1971
... and an argument similar to the one leading to Scheffé's method of multiple comparison. From the family of prediction intervals, an upper limit of the total absolute deviation Σ | X iT − e iT | is obtained, and the ratio of this limit to the projected total population is proposed as a measure of the relative...
Journal Article
Demography (2013) 50 (4): 1387–1395.
Published: 21 December 2012
... birth intervals, and mean and median ages at childbearing by child’s birth order and for all birth orders combined. These measures are referred to collectively as “TFR and its components.” Because the multidimensional life table is multivariate, all measures derived from it are also multivariate...
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Includes: Supplementary data
Journal Article
Demography (2010) 47 (1): 97–124.
Published: 01 February 2010
... of fertility, and mean and median ages at first marriage and mean and median closed birth intervals by birth order as measures of the tempo or timing of fertility. The focus is on effects of predictor variables on these measures rather than on coefficients, which are often difficult to interpret in the complex...
Journal Article
Demography (1977) 14 (1): 97–102.
Published: 01 February 1977
...Katharine A. Frohardt-Lane; J. Richard Landis; William H. Bruvold Abstract In this article, we introduce an alternative technique to the single-sentence question for measuring preferences for number of children, age at marriage, length of first birth interval, length of employment, and years...
Journal Article
Demography (2008) 45 (4): 785–801.
Published: 01 November 2008
...Shiro Horiuchi; John R. Wilmoth; Scott D. Pletcher Abstract A demographic measure is often expressed as a deterministic or stochastic function of multiple variables (covariates), and a general problem (the decomposition problem) is to assess contributions of individual covariates to a difference...
Journal Article
Demography (1989) 26 (2): 185–201.
Published: 01 May 1989
... fertility subsequent to a given age are more robust to variations in reproductive determinants, sample size, and sampling variation than the other measures, which include the frequently employed length of the open birth interval. In an illustrative analysis of World Fertility Survey data from sub-Saharan...
Journal Article
Demography (1967) 4 (1): 310–330.
Published: 01 March 1967
..., estimator bias, and measurement bias. Tables of bounds for measurement and estimator biases in the vital statistics and the forward survival ratio estimates of net intercensal migration are presented. Both net migration levels and net migration ratios are treated, and provision is made for both life table...
Journal Article
Demography (1976) 13 (1): 45–64.
Published: 01 February 1976
...Che-Fu Lee; Kuang-Hua Lin Abstract A simplified model is presented for the measurement of inter-live birth interval distributions. Comparative analyses of “effective fecundability,” the mean length and variation of postpartum infecundity, and the parity progression ratio based on this measurement...
Journal Article
Demography (1973) 10 (3): 405–419.
Published: 01 August 1973
...- tality transition during 1850-1968. Special features of the study are (1) a phase-specific, rather than an age-specific, analysis of mortality and (2) use of measures based on person-years of life (nLIJ)) in phase-intervals, rather than survival rates (nP or expectation of life at given ages (elJ...
Journal Article
Demography (2009) 46 (4): 717–737.
Published: 01 November 2009
... in their 20s, 30s, and 40s; for all age groups with respect to extreme poverty; and for white males. On the other hand, the risk of chronic poverty declined during the 1990s (as measured by the percentage of the poor who experienced ve or more years of poverty within a 10-year interval). The results...
Journal Article
Demography (1997) 34 (3): 411–420.
Published: 01 August 1997
...- ring before the average birth interval, I, and the mean age at DEMOGRAPHY, VOLUME 34·NUMBER 3, AUGUST 1997 TABLE 1. DEFINITION OF MEASURES Index Definition of measure 0(0) The proportion of preceding born children dead at the time of the birth of the children born in 1984 and 1989. Equivalent...
Journal Article
Demography (1984) 21 (2): 235–257.
Published: 01 May 1984
...Clifford C. Clogg; James W. Shockey Abstract This paper deals with the mismatch between occupation and schooling attainment, the imbalance between occupation-specific demand for labor and schooling-level-specific labor supply. A framework for measuring the prevalence of mismatch is given...
Journal Article
Demography (1980) 17 (3): 225–242.
Published: 01 August 1980
... that the number of children in the family has no direct effect on marital satisfaction but has a direct negative effect on parental satisfaction. Childspacing, as measured by the length of the average birth interval, is found to have no significant effect on either marital or parental satisfaction. Premarital...
Journal Article
Demography (1971) 8 (4): 481–490.
Published: 01 November 1971
... demographic measurements, particularly as regards the estimation of sterility, foetal death and stillbirth ratios, and birth intervals. An erratum to this article is available at http://dx.doi.org/10.1007/BF03201528 . References Barrett J. C. ( 1967 ). A Monte Carlo simulation of human...