Skip Nav Destination
Close Modal
1-20 of 93 Search Results for
Twin Pair
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
1
Image
in Compensation or Reinforcement? The Stratification of Parental Responses to Children’s Early Ability
> Demography
Published: 14 November 2016
Fig. 2 Variation in parental cognitive stimulation within twin pairs (in absolute values). N = 1,000 (500 twin pairs); estimates are calculated on the nonimputed sample. Source: Early Childhood Longitudinal Study, Birth Cohort (ECLS-B)
More
Journal Article
Demography (2011) 48 (4): 1517–1533.
Published: 16 August 2011
... population registry, we estimate Cox proportional hazards models that describe similarity in the timing of smoking desistance among adult twin pairs. We show that identical twin pairs are significantly more likely to quit smoking within a similar time frame compared with fraternal twin pairs. Importantly, we...
FIGURES
Journal Article
Demography (2013) 50 (2): 421–444.
Published: 14 November 2012
... of biology is substantially smaller than the literature suggests. I also estimate the interacting effects of biology with some intrauterine and external environmental factors, including birth order within a twin pair, social status, and climate. I find that a twin is more likely to be male if he...
Journal Article
Demography (2020) 57 (4): 1513–1541.
Published: 21 July 2020
... Scandinavia. In this article, we produce the first U.S.-based estimates of the effects of education on mortality using a representative panel of male twin pairs drawn from linked complete-count census and death records. For comparison purposes, and to shed additional light on the roles that neighborhood...
FIGURES
Includes: Supplementary data
Journal Article
Demography (2016) 53 (4): 1135–1168.
Published: 08 July 2016
... exploiting a twin fixed-effects design to control for the influence of genetics and shared family background. This result is robust to controlling for within-twin-pair differences in early-life health and cognitive ability, as proxied by birth weight and height, as well as to restricting the sample to MZ...
FIGURES
Journal Article
Demography (2011) 48 (2): 507–530.
Published: 21 April 2011
... around birth on the individual CV mortality rate at higher ages. There is no effect on the cancer-specific mortality rate. From variation within and between monozygotic and dizygotic twin pairs born under different conditions, we conclude that the fate of an individual is more strongly determined...
FIGURES
| View All (4)
Includes: Supplementary data
Journal Article
Demography (2010) 47 (2): 327–343.
Published: 01 May 2010
... is strongly associated with an increased risk of autism. By turning a social demographic lens on the historical patterning of concordance among twin pairs, we identify a central mechanism for this association: de novo mutations, which are deletions, insertions, and duplications of DNA in the germ cells...
Journal Article
Demography (2001) 38 (1): 29–42.
Published: 01 February 2001
... coef- Behavior genetic designs and analyses can be used to address issues of central importance to demography. We use this methodol- ogy to document genetic influence on human fertility. Our data come from Danish twin pairs born from 1953 to 1959, measured on age at first attempt to get pregnant...
Journal Article
Demography (2013) 50 (4): 1399–1420.
Published: 24 January 2013
.... The numbers of concordant and discordant MZ and DZ twin pairs (in terms of education/fertility) and the tetrachoric correlations of MZ and DZ (for education/fertility) twin pairs are shown in Table 3 . A greater proportion of MZ than DZ twin pairs was concordant for both education and fertility...
Journal Article
Demography (2017) 54 (1): 71–91.
Published: 09 January 2017
.... The main analysis presented in this article includes only twin pairs in which both twins had a child because the bivariate biometric models cannot deal with nonlinear outcomes. We tested the robustness of our results by including right-censored observations using Cox regression models. We present Cox...
FIGURES
Includes: Supplementary data
Journal Article
Demography (2011) 48 (4): 1347–1375.
Published: 13 August 2011
... treatment effects of education when compulsory school laws really matter . American Economic Review , 96 , 152 – 175 . 10.1257/000282806776157641 Osler , M. , McGue , M. , & Christensen , K. ( 2007 ). Socioeconomic position and twins’ health: A life-course analysis of 1266 pairs...
Journal Article
Demography (2016) 53 (4): 1185–1205.
Published: 21 July 2016
... within twin pairs. Although age can be controlled in models using siblings, it may be associated with racial classification or perception in ways that cannot be captured by controlling for it. Physical, behavioral, and social characteristics associated with perceptions of race may vary systematically...
Journal Article
Demography (1999) 36 (4): 421–428.
Published: 01 November 1999
... relatedness (Plomin, DeFries, and McCleam 1990). The most common design is to compare pairs of iden- tical twins with pairs of fraternal twins. The former have 100% of their genes in common; the latter, like any pair offull siblings, have, on average, 50% in common. The researchers assume, crucially...
Journal Article
Demography (2010) 47 (Suppl 1): S65–S85.
Published: 01 March 2010
... Population Association of America 2010 2010 Twin Pair Teen Mother Adult Outcome Tall Individual Peabody Picture Vocabulary Test References Adler N.E. , Boyce T. , Chesney M.A. , Cohen S. , Folkman S. , Kahn R.L. , & Syme S.L. ( 1994 ). Socioeconomic...
Journal Article
Demography (2016) 53 (6): 1883–1904.
Published: 14 November 2016
...Fig. 2 Variation in parental cognitive stimulation within twin pairs (in absolute values). N = 1,000 (500 twin pairs); estimates are calculated on the nonimputed sample. Source: Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) ...
FIGURES
Includes: Supplementary data
Journal Article
Demography (1997) 34 (1): 31–48.
Published: 01 February 1997
... 1870-1900 who both survived to age 30. All totalled we had 470 male MZ twin pairs, 780 male DZ twin pairs, 475 female MZ twin pairs, and 835 female DZ twin pairs. To simplify calculations, we did not include 10 pairs with cen- sored information in the analysis at the first stage. For both male...
Journal Article
Demography (2006) 43 (4): 747–769.
Published: 01 November 2006
...-sex twin pairs of unknown zygosity from the National Longitudinal Study of Youth (NLSY), Rodgers et al. (1999) identi ed a genetic contribution to age at rst sex in the all-ethnicities sample (heritability: 0.37), the white sample (0.51), and the male sample (0.54). No genetic contribution to age...
Journal Article
Demography (2001) 38 (3): 437–447.
Published: 01 August 2001
... oversample is one feature that we exploit here. Information provided by adolescents in the in- school questionnaire about siblings living in their household was used to identify identical twins, fraternal twins, nontwin siblings, and other genetically related pairs. MZ and DZ twin pairs were sampled...
Journal Article
Demography (2010) 47 (1): 145–162.
Published: 01 February 2010
... in a twin pair. Studies of twins, however, de¿ ne sibling endowment differently. Since their samples include only twin pairs, the sibling endowment variable is de¿ ned as the twin s endowment and, therefore, these models are unable to estimate the effect of other, nontwin siblings endowments. In twins...
Journal Article
Demography (2020) 57 (6): 2143–2167.
Published: 25 September 2020
... that allows us to compare boy-girl differences in mortality within twin pairs born into the same family. The fixed effect (in Eq. ( 1 ), α i ) captures all observed and unobserved factors (e.g., family SES and environment, prenatal inputs) shared between the twin pair. For an individual j in twin pair i...
FIGURES
Includes: Supplementary data
1
