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Journal Article
Demography (2017) 54 (2): 745–773.
Published: 16 February 2017
... focus of this study, I examine the effects of student-teacher gender match on math achievement in high schools and fail to find any significant effect of gender match on either female or male students’ achievement. 27 Following McCrary and Royer ( 2011 ), power calculations for a two-sided test...
Includes: Supplementary data
Journal Article
Demography (2001) 38 (3): 437–447.
Published: 01 August 2001
... but not larger than most sibling correlations. The data suggest that family-based factors are several times more powerful than neighborhood and school contexts in affecting adolescents’ achievement and behavior. 14 1 2011 © Population Association of America 2001 2001 Adolescent Development...
Journal Article
Demography (2016) 53 (5): 1583–1603.
Published: 23 September 2016
... is operationalized using Nam-Powers occupational status scores divided into quartiles and a category for farmers. Models assess mortality risk after age 40. Included is a test for whether effects are proportional across parents who died younger and older. Estimated life expectancies across categories of offspring...
FIGURES
Journal Article
Demography (2017) 54 (1): 285–309.
Published: 19 January 2017
... that the precision and accuracy of D from the ACS is influenced by a number of factors, including the number of tracts and minority population size. For smaller areas, point estimates systematically overstate actual levels of segregation, and large confidence intervals lead to limited statistical power. 13 12...
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Journal Article
Demography (1964) 1 (1): 56–73.
Published: 01 March 1964
... of 1p) is near enough to a straight line that this differs from the true p by unity in the fifth decimal place, a further trial showing that p = .00337. Since the unit of time in our matrix calculation was not the year but a 15- year period, we must calculate the 15th power in order to make...
Journal Article
Demography (2012) 49 (2): 553–574.
Published: 28 January 2012
... be accounted for by differences in socioeconomic and demographic characteristics. For females, 70% percent of the gap is accounted for. Labor force participation, occupation, and (among women only) marital status have almost no additional power to explain the black-white disparity in life expectancy after...
Includes: Supplementary data
Journal Article
Demography (2024) 61 (3): 643–664.
Published: 01 June 2024
... conventional metric to evaluate the overall predictive power of mortality models: RMSE = μ 2 + 1 / φ . (10) Following a Bayesian framework, measures of accuracy, precision, and predictive power are estimated for each sex, for both sexes combined, and for different combinations...
FIGURES
Includes: Supplementary data
Journal Article
Demography (1968) 5 (1): 382–409.
Published: 01 March 1968
... n R ep or ts , P op ul at io n E st im at es , S er ie s P_ 25 , N o. 32 1, N ov em be r 30 , 19 65 , T ab le 2, p. 15 . 388 DEMOGRAPHY (15) We calculate Nt directly by taking the tth power of the reverse projection-matrix N, but, as t increases, this calculation will eventually lead...
Journal Article
Demography (2022) 59 (5): 1953–1979.
Published: 01 October 2022
... and baseline mortality ratios for each city. Full details on these models (including regression equations) are reported in section II of the online appendix; power calculations for all models are reported in section IIE. Models are generally well-powered, with the exception of the analysis of the herald wave...
FIGURES | View All (5)
Includes: Supplementary data
Journal Article
Demography (1969) 6 (3): 261–269.
Published: 01 August 1969
... 1969 ear - m U+1l/m (Il - ii ii' so that r is obtained as r = Uln (m.,u+ll/m./ I , (3) which is to say one fifth of the natural logarithm of the ratio of any element of the (t + l)th power of the matrix to the corresponding term in the tth power. The stable vector {K l } is any column of M', say...
Journal Article
Demography (1972) 9 (4): 617–624.
Published: 01 November 1972
... the future labor force by educational attain- ment, they have to scrutinize how the educational system could afford the in- herent expansion. That expansion could be achieved in two ways: by increasing the school intake ratio, which is a quan- titative process, and/or by improving the retention power...
Journal Article
Demography (2005) 42 (3): 523–535.
Published: 01 August 2005
... Blumberg , R. , & Coleman , M. Tolbert ( 1989 ). A Theoretical Look at the Gender Balance of Power in the American Couple . Journal of Family Issues , 10 , 225 – 50 . 10.1177/019251389010002005 Brennan , R.T. , Barnett , R. Chait , & Gareis , K.C. ( 2001 ). When...
Journal Article
Demography (2012) 49 (4): 1259–1283.
Published: 10 October 2012
... left matrix, further referred to as T , is needed, as the remaining entries can be derived using . Given the definition of the matrix exponential, it is clear that Π(Δ t ) will be of the form with , as the last row of Q 2 (and thus also other powers of Q ), will contain only zeros...
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Journal Article
Demography (2008) 45 (4): 829–849.
Published: 01 November 2008
... – 45 . 10.1068/a34216 Compton J. , & Pollak R.A. ( 2007 ). Why Are Power Couples Increasingly Concentrated in Large Metropolitan Areas? . Journal of Labor Economics , 25 , 475 – 512 . 10.1086/512706 Cooke T.J. ( 2001 ). ‘Trailing Wife’ or ‘Trailing Mother...
Journal Article
Demography (1970) 7 (1): 61–69.
Published: 01 February 1970
..., the average house- hold size would be mueh larger than observed. Seeond, in populations with high fertility and extended family ideals, the deeline in mortality ereates powerful pressures at the household level for departures from or modifieations of the extended family system or for the eontrol of fertility...
Journal Article
Demography (2018) 55 (6): 2161–2180.
Published: 08 October 2018
... gains of migrants and find that changes in these returns to migration also have limited explanatory power. The United States has long been considered to be a highly mobile society. However, migration within the United States as measured by the CPS has been declining for decades, reaching historic...
FIGURES | View All (6)
Includes: Supplementary data
Journal Article
Demography (2013) 50 (1): 229–236.
Published: 18 August 2012
.... Demonstration of the potential to reduce the road traffic mortality burden by utilizing statistics from lower-burden areas or populations and extrapolating those to higher burden areas or populations can be a powerful message to policy makers that improved road traffic safety statistics are achievable. We...
FIGURES
Journal Article
Demography (2000) 37 (2): 193–201.
Published: 01 May 2000
.... , & Zeller , R. ( 1979 ). Reliability and Validity Assessment . Beverly Hills : Sage . D’Agostino , R. , Belanger , A. , & D’Agostino , R. ( 1990 ). A Suggestion for Using Powerful and Informative Tests of Normality . The American Statistician , 44 , 316 – 21 . 10.2307...
Journal Article
Demography (2020) 57 (2): 779–797.
Published: 24 March 2020
..., NP, and AP) model from matched cross-sections of March CPS data. Their transition matrix, raised to the power 2.5 to convert the two-year interval to a five-year interval, was used as the base matrix from which the cross-product ratios were calculated. The same base matrix was used at every age...
Includes: Supplementary data
Journal Article
Demography (1994) 31 (2): 217–227.
Published: 01 May 1994
... lacks power when differences in the distributions are in the tails (Conover 1980). This is precisely the case in these data. Rather than rely solely on a Kolmogorov-Smimov test, it seems to us to be important to carefully examine each component of the distributions to determine where the differences lie...