The IQ performance of children who experienced the birth of a younger sibling was found to drop 10 points during the next two years for singleton children and 5.8 points for last-born children from families of comparable size. The study controlled for sex, family size, age at assessment, and IQ before the birth of the sibling. (Author/RH)

This study examined the relationship between age-interval between siblings and children's creative abilities, as well as parental views on the creative abilities of 116 children (ages 9-12 years). The study found that larger age intervals resulted in greater creativity and that age intervals also interacted with birth order, family size, and age.…

Patterns of mothering and fathering in 72 families were observed longitudinally and from the perspective of the family system when infants were 1, 3, and 9 months old. Findings suggested similarities and differences in mothering and fathering. (Author/RH)

Similarity of friends and the degree to which friendship selection criteria and similarity change as a function of age were investigated in this study. Subjects were 27 preschoolers, 34 third graders, and 30 sixth graders. Fifty-three percent were male, 47 percent were female, and 29 percent were black. Friendship choices were measured by…

The timing of three key family formation events--first sexual intercourse, first conception, and first marriage--was compared for different levels of urbanization. The levels of urbanization considered were central cities, suburbs, nonmetropolitan urban places, and rural area. Data were taken from the National Survey of Family Growth, for which…

Demographic and economic characteristics of Spanish Americans in North Dakota in 1980 are presented, using data from the Bureau of the Census. Statistics show 3,902 Spanish Americans were living in North Dakota (0.6% of the state's population): 59.4% were Mexican; 6.3% Puerto Rican, 1.5% Cuban, and 32.8% of other Spanish descent, with more males…

Data from the 1980, 1970, and 1960 censuses were used to describe Pennsylvania's rural women and to compare them with urban women and, in some instances, men. In Pennsylvania in 1980, just 1 rural woman in 25 lived on a farm. These women were more educated, more active in the labor force, and somewhat better paid than their counterparts in 1960…