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Chapter 8 Family Matters

The traditional family is changing, especially among white Americans with lower education and cognitive ability. People with higher intelligence and education tend to marry more and get divorced less. Though divorce is often linked to low socioeconomic status, it is more related to cognitive ability. Illegitimacy, or having children outside of marriage, is much more common among women with low cognitive skills, especially those from broken homes or low-income families. Overall, the changes in family structure affect different socioeconomic and cognitive groups in various ways, highlighting the complexity of family issues today.

Marriage

Marriage is an important part of social life and has experienced significant demographic changes over time, particularly since the 1920s. Factors such as the Great Depression and World War II influenced marriage rates, with noticeable spikes and drops related to these events. However, starting in 1973, there has been a long-term decline in marriage rates that seems to reflect changing attitudes toward marriage in modern society. Despite this decline, over 90 percent of Americans still marry by their 40s.

Cognitive ability also plays a role in marriage patterns. In the past, wealthier and more successful individuals married earlier than the poor, linking social status and intelligence to marriage. However, in contemporary society, higher socioeconomic status is associated with later marriages and lower rates of marriage overall. This trend is evident among intelligent men and women, especially in professional settings, where many remain single into their 30s and 40s.

Furthermore, marriage rates tend to be lowest among individuals with very low IQs, affecting their competitiveness for marriage partners. The analysis shows that while intelligence has some impact, socioeconomic background significantly influences marriage likelihood. Surprisingly, education emerges as a critical factor; higher IQ can increase marriage probabilities among high school graduates, while better socioeconomic background tends to decrease them. Thus, the complex interplay of IQ, education, and socioeconomic status contributes to current marriage trends.

Divorce

Marriage and divorce patterns have changed dramatically over the years. In the early 20th century, most marriages were expected to last a lifetime, with only a small percentage ending in divorce. However, by the late 1970s, divorce rates soared, with more than half of marriages ending in divorce. Despite a recent decline, divorce rates are still significantly higher than they were in the mid-1960s.

Intelligence (IQ) appears to have a connection with the likelihood of divorce. Studies suggest that individuals with higher IQs may be less impulsive and more capable of working through marital problems, leading to longer-lasting marriages. In particular, people with higher IQs are more likely to stay married for at least five years compared to those with lower IQs. However, this trend is more pronounced among those with higher education levels. College graduates experience lower divorce rates than those who only completed high school, although when controlling for various factors, high school graduates performed better than expected.

Additionally, individuals with divorced parents have a higher risk of divorce themselves, possibly due to lacking a model for a successful marriage. However, the impact of a broken home doesn't seem to negate the benefits provided by higher cognitive abilities. The findings indicate that maintaining two parents, especially biological ones, can lead to better chances for children to have lasting marriages. Overall, various factors such as intelligence and socioeconomic background are important in understanding marital stability.

Illegitimacy

Childbearing is an important issue, particularly when discussing the growing number of children born to single women, referred to as illegitimacy. This situation raises concerns about how these trends might affect the overall intelligence of a nation. A key problem today is the decreasing number of two-parent families, which contributes to the rise in births among single mothers.

The term "illegitimacy" is used instead of modern phrases like "out-of-wedlock births" because it emphasizes the traditional belief that having both parents is essential for a child's full development. Research shows that across different cultures and history, children without fathers are often seen as lacking a complete family structure. However, modern societies, especially in the West, seem to be moving away from this traditional view, as indicated by the rising rates of single motherhood.

From 1920 to 1990 in the United States, the percentage of children born to single women jumped from less than 3 percent to about 30 percent. The growth in the number of unmarried mothers has been significant, highlighting a major change in society. It is suggested that intelligence (IQ) may influence this trend, along with other factors like family problems, social changes, and economic circumstances.

Research indicates that lower intelligence may lead to higher chances of being a single mother. Women with higher IQs are more likely to plan their pregnancies and use birth control effectively compared to those with lower IQs, who may be more impulsive. Studies show clear differences in illegitimacy rates among different intelligence groups. For example, only 2 percent of women in the highest intelligence group had illegitimate children, while 32 percent in the lowest group did.

In the past, people thought that economic status played the biggest role in illegitimacy, mostly affecting lower-class women. However, recent studies show that many teenagers who have babies while still in high school come from lower socioeconomic backgrounds. Also, research shows that intelligence plays a big role in the likelihood of having a baby out of wedlock, regardless of a woman’s economic status.

Though higher education levels usually mean lower rates of illegitimacy, the differences vary widely. For instance, almost all women with college degrees who had children did so while married. In contrast, many women with less education had children out of wedlock.

Family situation also significantly impacts the chances of having children outside of marriage. Research shows that women raised with both biological parents have the lowest rates of illegitimacy compared to those who grow up in single-parent or stepfamilies. Growing up with both parents generally decreases the likelihood of having an illegitimate child.

Poverty and the welfare system are often debated in relation to illegitimacy. Some believe that welfare can encourage single motherhood by providing support that makes marriage less necessary. This view highlights the way economic conditions can affect childbearing decisions. Data show that the likelihood of having a child out of wedlock is much higher for women living below the poverty line compared to those above it.

When looking at the links between IQ and poverty, studies show that low intelligence is a strong factor predicting illegitimacy, especially among poor women. For example, impoverished white women with average intelligence face a high chance of having children out of wedlock. The relationship between IQ and illegitimacy is even stronger among those who are poor compared to the general population.

Additionally, some women might see welfare support as an attractive option because they may not realize the long-term disadvantages of relying on it instead of pursuing education or jobs. Higher intelligence tends to be associated with better life choices regarding childbearing and evaluating the benefits and drawbacks of welfare.

In summary, illegitimacy is closely connected to both cognitive ability and various social and economic factors. Understanding these relationships is important for creating effective policies to address the rise in births outside of marriage. It is vital to recognize how intelligence plays a role while also considering changes in education and opportunities that can help lower illegitimacy rates.

The Selective Deterioration of the Traditional Family

The traditional American family has been struggling, but the problems like divorce and children born out of wedlock are not the same for everyone. In families with higher cognitive abilities, 87 percent are married couples, while only 70 percent of those with lower abilities are. Also, 17 percent of higher ability families have gone through divorce, compared to 33 percent of lower ability families. Furthermore, 5 percent of higher ability families have children born out of wedlock, while this is 23 percent for lower ability families. The biggest decline in family stability is seen in those with lower cognitive abilities.