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Results for “Marriage--statistics”

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At least 19 recordsLinked to original sources
PubMed1987

The analysis of marital interaction in cross-sectional twin data.

The effects on twin data of social interaction between spouses is examined. When social interaction leads to an increase in marital resemblance (eg through reciprocal imitation), the variance of married individuals is increased, compared to the variance of unmarried individuals. Furthermore, the expected correlations between concordant married twin pairs will be lower than the expected correlations between concordant unmarried twin pairs, with the discordant twin correlations being intermediate in value. It is therefore possible, in principle, to detect the effects of marital interaction without using either longitudinal data or data on spouse pairs. However, to be detectable in twin data, marital interaction must be strong, or must exhibit marked asymmetry of effects between males and females. Genotype x environment interaction can also produce heterogeneity of correlation between concordant married, discordant, and concordant unmarried twin pairs, when genetic and environmental effects interact with marital status. However, this will usually produce increased estimates of the genetic component of variance in unmarried twins, whereas marital interaction produces increased genetic variance in married twins.

Environment↗
PubMed1979

The incidence of divorce within cohorts of American marriages contracted since the Civil War.

The proportion of marriages that end in divorce can be estimated from vital registration or from census data. The former source suggests considerably higher levels of divorce than does the latter. A new series, combinig the two sources, is presented for annual marriage cohorts back to 1867. Actual experience to 1970 is traced and a projection beyond that point is made for cohorts with incomplete divorce histories. The cohort divorce series moves steadily upwards and shows much less variability than an equivalent series of period divorce rates. Factors related to high divorce within a cohort are armed service mobilization and high unemployment rates in the year of marriage, and slow national economic growth between pre- and post-marital periods.

Divorce↗