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Normal Approximation

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Journal Article
Demography (1971) 8 (4): 441–450.
Published: 01 November 1971
... probabilities as a multitype branching process. The precision of the usual projection e T (= EX T ) is studied by a family of prediction intervals of linear functions of the vector of deviations X T — e T , which has a preassigned probability level. This family is obtained by a multi-normal approximation and an...
Journal Article
Demography (2009) 46 (1): 1–25.
Published: 01 February 2009
... stature approximately follows a normal (Gaussian) distribution in a homogeneous, well-nourished population. This proposition, advanced by Quetelet in 1835 and established more systemat- ically by Galton and Pearson a half-century later (Tanner 1981), is largely accepted among both scholars of human growth...
Journal Article
Demography (1967) 4 (2): 850–858.
Published: 01 June 1967
... cerca de para un mayor número de categorías c, cuando las categorias no son improbables. 24 1 2011 © Population Association of America 1967 1967 Halothane Order Statistic Normal Approximation Multinomial Distribution Standard Grid References 1 J. P. Bunker, W. H. Forrest...
Journal Article
Demography (2005) 42 (2): 243–258.
Published: 01 May 2005
... proportion of survivors; (2) “verticalization,” which corresponds to how concentrated aging-related (“normal”) deaths are around the modal age at death (M); and (3) “longevity extension,” which corresponds to how far the highest normal life durations can exceed M. Our study shows that the degree of...
Journal Article
Demography (2009) 46 (4): 851–872.
Published: 01 November 2009
... from the Health and Retirement Study (1992–2004). Although class II/III obesity (BMI _ 35.0 kg/m2) increases mortality by 40% in females and 62% in males compared with normal BMI (BMI = 18.5-24.9), class I obesity (BMI = 30.0-34.9) and being overweight (BMI = 25.0-29.9) are not associated with excess...
Journal Article
Demography (2013) 50 (2): 615–635.
Published: 17 October 2012
... tends to be small. Primary (normal) mean birth weight does increase by education, but the change is only approximately one-third of the effect observed for European American and African American birth cohorts. The impact of education on mortality is smaller as well. An overall effect is significant only...
Journal Article
Demography (2020) 57 (2): 403–422.
Published: 12 March 2020
... comparable measures of cognitive development by approximately 0.25 SD (Attanasio et al. 2014 ; Sylvia et al. 2019 ). The effect of migration in this early period on children at 24–30 months of age is significantly more negative than the effect of migration six months later. The last column in Table 5...
Includes: Supplementary data
Journal Article
Demography (2018) 55 (2): 435–457.
Published: 28 February 2018
... grandparents. The restriction to studying male mortality in adulthood and old age, meanwhile, reflects other limitations of the data that we describe shortly. For our analysis, we use the China Multigenerational Panel Dataset, Liaoning (CMGPD-LN), which describes approximately 250,000 individuals living in...
Includes: Supplementary data
Journal Article
Demography (2017) 54 (5): 1873–1895.
Published: 05 September 2017
... public health campaigns—can lead to greater congruence among education’s pathways. Broader educational, economic, and political institutional change could also influence the process. Five PET curves are estimated for different populations and periods from approximately the onset of exposure to...
Includes: Supplementary data
Journal Article
Demography (1968) 5 (1): 475–484.
Published: 01 March 1968
...); estimaciones sobre este tipo de areas estan sujetas a un margen de error mayor que las estimaciones sobre areas donde los cambios de población son más normales. El test señala cinco caracteristicas del métoda de unidad de vivienda para la estimación de la población de las ciudades: (1) En general, el métoda da...
Journal Article
Demography (2014) 51 (2): 619–643.
Published: 28 February 2014
..., month, year, and day of the week. The average score in our sample is 3.8, with a standard deviation of 0.5. The scores of immediate memory, delayed memory, and fluency approximately follow a normal distribution around their mean values. Numeracy and orientation have larger densities at the upper...
Journal Article
Demography (2018) 55 (4): 1423–1446.
Published: 12 June 2018
...-sex couples by state in 2015, and their share of the joint-filing population (to normalize for differences in the total population of marriage-age individuals or any state-level differences in the propensity of couples to marry); comparable estimates for 2013 and 2014 are provided in Online Resource...
Includes: Supplementary data
Journal Article
Demography (1966) 3 (2): 477–490.
Published: 01 June 1966
... the compulsory registration areas where an eighth of the population of the country lives. It was found that age misstatement occurs partly because of digital preference but even more commonly because of a tendency to approximate age to the nearest birthday. Thus, when age misstatement occurs through...
Journal Article
Demography (1990) 27 (4): 537–557.
Published: 01 November 1990
...R. Jean Haurin; Frank L. Mott Abstract Using approximately 2,000 sibling pairs from the ab] National Longitudinal Survey of Labor Market Experience of Youth, we examine the influence of an older sibling’s age at first sexual intercourse on the sexual initiation of a younger sibling. Hypotheses...
Journal Article
Demography (2015) 52 (1): 39–60.
Published: 25 December 2014
..., can be proved to be approximately normal. 7 Period effects can also be negative: wars and epidemics are the most relevant examples. In this context, we consider only positive period effects, such as medical breakthroughs, because we focus on mortality reduction. 8 In the following...
Journal Article
Demography (1994) 31 (3): 403–426.
Published: 01 August 1994
... sterile and nonsterile states, a distinction between preexisting sterility and sterility that begins after initiation of exposure, and log-normally distributed fecundability among nonsterile couples. Application of the model to data on first birth intervals from Taiwan, Sri Lanka, and the Amish shows that...
Journal Article
Demography (1996) 33 (4): 469–481.
Published: 01 November 1996
... in approximately 1.9 mil- lion births examined in the NCHS linked files. As one would also expect, a substantial number of preterm, normal-weight births are not growth-retarded ("heavy preemies only 0.1% of such births are growth-retarded, a proportion far too small to support further analysis. The...
Journal Article
Demography (1966) 3 (2): 500–512.
Published: 01 June 1966
..., although sharp social and economic differences existed between the urban and feudal English and the pastoral Irish, the possibility of a normal political and economic region was present. Although Edward I granted common law rights to the Welsh, he refused them to the Irish, thus preventing integration with...
Journal Article
Demography (2015) 52 (6): 1995–2019.
Published: 20 October 2015
... based on small absolute counts. Bayesian MCMC estimation of a log-normal Poisson model allows the calculation of the variance estimates of the degree of segregation in a single overall model, and credible intervals are obtained to provide a measure of uncertainty around those estimates. The procedure...
Journal Article
Demography (2003) 40 (3): 437–450.
Published: 01 August 2003
... apprehensions of persons attempting to cross the U.S.-Mexico border illegally declined immediately following passage of the law but returned to normal levels during the period when undocumented immigrants could file for amnesty and the years thereafter. Our findings suggest that the amnesty program did not...