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Percentage Absolute Difference

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Journal Article
Demography (1984) 21 (3): 383–404.
Published: 01 August 1984
... populations for 1980, using 1970 base data, for 106 counties and 553 places in two states. Comparisons of the model’s projections to 1980 Census counts reveal mean percentage absolute differences of 10 percent for counties and 14 percent for places. In addition, the model’s accuracy was comparable...
Journal Article
Demography (2018) 55 (4): 1447–1473.
Published: 02 July 2018
... regression coefficients, and their standard errors) with couple data in each of 11 DHS surveys in which the couple weight could be derived. We used two measures of bias: absolute percentage difference from the value estimated with the couple weight and ratio of the absolute difference to the standard error...
FIGURES
Includes: Supplementary data
Journal Article
Demography (1983) 20 (3): 407–413.
Published: 01 August 1983
... counties. These tests provide further evidence that the new techniques produce more precise, less biased estimates than previously used techniques. 7 1 2011 © Population Association of America 1983 1983 Housing Unit Absolute Percentage Error Upward Bias Recent Census Group Quarter...
Journal Article
Demography (2000) 37 (2): 193–201.
Published: 01 May 2000
...David A. Swanson; Jeff Tayman; Charles F. Barr Abstract Mean absolute percentage error (MAPE), the measure most often used for evaluating subnational demographic estimates, is not always valid. We describe guidelines for determining when MAPE is valid. Applying them to case study data, we find...
Journal Article
Demography (2003) 40 (3): 499–519.
Published: 01 August 2003
... complete measure of the relationship between these factors under different assumptions of what poverty really means. INCOME GROWTH, ECONOMIC INEQUALITY, AND FAMILY STRUCTURE Because income growth reflects overall increases in average standards of living, it affects poverty or, at least, absolute poverty...
Journal Article
Demography (1980) 17 (3): 323–339.
Published: 01 August 1980
... in Table 1. The average absolute percentage error pro- vides a measure of the precision of each technique, while the average algebraic percentage error provides a measure of the bias. Table 1 shows overall precision to be quite similar for the FLA-REC, FLA-BP and SZ-BP techniques. All have overall average...
Journal Article
Demography (1988) 25 (3): 461–474.
Published: 01 August 1988
.... The resulting differences are called forecast errors, although they might have been caused partly by errors in census enumeration as well as by errors in the forecasts themselves. Throughout this article the term "error" refers to percentage error rather than to absolute numerical error. General Characteristics...
Journal Article
Demography (2022) 59 (4): 1459–1488.
Published: 01 August 2022
.... Absolute (additive) changes have several benefits over relative (multiplicative) changes. They avoid exaggerating small differences, particularly in applications when baseline probabilities are low ( Citrome 2010 ). For example, an AME indicating a 1-percentage-point increase in the chance of experiencing...
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Includes: Supplementary data
Journal Article
Demography (2014) 51 (1): 51–71.
Published: 03 January 2014
.... The binomial variance of the percentage frail, , is greatest when . In other words, all else equal, the rate of frailty decline is greatest when one-half of the cohort is frail and one-half robust . Yet, all else is not equal: the absolute difference between frail and robust mortality...
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Includes: Supplementary data
Journal Article
Demography (2018) 55 (4): 1547–1565.
Published: 03 July 2018
... differences in absolute upward mobility across CZs captured by the mean rank at age 30 in the national (child) income distribution for children born to parents at the 25th percentile ( p = 25) of the national (parent) income distribution. 5 Second, a complementary measure of upward mobility...
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Journal Article
Demography (2005) 42 (3): 397–425.
Published: 01 August 2005
... of the factor score's effect in a given DRS sample. We termed this the "absolute difference" in the predicted probability of unmet need. In the tables that follow, the absolute difference is expressed in terms of percentage points. The second illustrative device was constructed by dividing the absolute...
Journal Article
Demography (2003) 40 (4): 741–757.
Published: 01 November 2003
... of America 2003 2003 Forecast Error Mean Absolute Percentage Error Population Projection Current Population Report Census Count References Alho J.M. ( 1990 ). Stochastic Methods in Population Forecasting . International Journal of Forecasting , 6 , 521 – 30 . 10.1016/0169-2070...
Journal Article
Demography (1982) 19 (2): 211–221.
Published: 01 May 1982
.... A positive difference suggests that the rural population increased as a percentage of the total county population during the period, a pattern clearly suggesting pop- ulation dispersal from more urbanized to less urbanized settings. Corresponding- ly, negative values suggest a pattern of population...
Journal Article
Demography (1984) 21 (2): 235–257.
Published: 01 May 1984
... on the young age groups. Results in Table 3 provide tentative Age Absolute Relative Absolute Relative DEMOGRAPHY, volume 21, number 2, May 1984 NOTE: Mismatch prevalence is expressed as a percentage of the labor force. Table 4.-Mismatch Prevalence for Sex-Color- Age Groups. BlacksNonb1acks Nonblacks Blacks Age...
Journal Article
Demography (1981) 18 (2): 245–250.
Published: 01 May 1981
... to provide these statistics based on available frequencies for two-way tables. 1 REDEFINITION OF THE INDEX The basis for the generalization is a redefi~ition of the index of dissimilarity, D. D IS generally defined as one-half of the sum of absolute differences in propor- tions in groups I and 2 in the ith...
Journal Article
Demography (1972) 9 (3): 339–352.
Published: 01 August 1972
... sufficiently accurate birth rates. The difference between the birth rates of the control run and those of AB1 or AB2 or AB6 reflect the impact of induced abortion on birth rate under specific as- sumptions. For the computation of birth rates we make use of the absolute number of births in each calendar year...
Journal Article
Demography (2002) 39 (4): 697–712.
Published: 01 November 2002
... these estimates using county-level data in four states and found them to be more precise and less biased than estimates based on more commonly used methods. 14 1 2011 © Population Association of America 2002 2002 Housing Unit Mean Absolute Percentage Error Mobile Home Group Quarter Housing...
Journal Article
Demography (1989) 26 (1): 1–14.
Published: 01 February 1989
...Oded Stark; J. Edward Taylor Abstract This article provides theoretical reasoning and empirical evidence that international migration decisions are influenced by relative as well as absolute income considerations. Potential gains in absolute income through migration are likely to play an important...
Journal Article
Demography (2022) 59 (1): 51–59.
Published: 01 February 2022
... and to Hispanics without a bachelor's degree, the increase for these groups was smaller in both absolute and percentage terms and occurred more recently. The medical literature suggests that SUID is largely preventable and is more likely with unsafe sleep environments, maternal smoking or drug use during pregnancy...
FIGURES
Includes: Supplementary data
Journal Article
Demography (2007) 44 (3): 479–495.
Published: 01 August 2007
.... ( 1986 ). Epidemiologic Characteristics of the United States Elderly Population in the 20th Century . European Journal of Epidemiology , 2 ( 1 ), 15 – 25 . 10.1007/BF00152712 Case A. , & Paxson C. ( 2005 ). Sex Differences in Morbidity and Mortality . Demography , 42 , 189...