Mexican-American children lag in preliteracy skills, study finds

December 12, 2012

(—Mexican-American preschoolers fall behind their white counterparts in terms of early language and pre-literacy skills, but the social competencies between the two groups are indistinguishable, according to new research from the University of California, Berkeley, and UCLA.

The findings illuminate how Mexican-American toddlers and preschoolers grow and develop, and in a report published this week in the Maternal Child Health Journal, the researchers caution teachers, pediatricians and other to "not assume social-emotional delays, even when language or cognitive skills lag somewhat behind."

The research team—comprised of research pediatricians, psychologists and a —also suggests that health practitioners might take particular note of social and emotional delays when they do arise with Mexican-American , given the youngsters' generally robust development.

Today, one in five children in the United States is Latino, and by 2030, the numbers will be one in three. In California, the majority of all births are now of Latino parentage.

The UC pediatricians and child development specialists tracked a nationwide sample of 4,700 children born in 2001 over a three-year period, when they were between ages 2 and 5 and not yet kindergarteners. Two-thirds of these children were of Mexican descent. Just under one-fifth (19 percent) of them had at least one parent of Latino heritage.

The researchers found startling evidence: Mexican American toddlers between ages 2 and 3 displayed language and about eight months behind those of their white peers, whether assessed in English or Spanish. This gap persisted through ages 4 and 5, with Mexican-American children entering kindergarten already behind.

The explanation may not rest with the youngsters, said UCLA and assistant clinical professor of pediatrics Alma Guerrero, who co-directed the new study.

"The slight schooling of Mexican-heritage mothers, juggling more young children at home, and weak traditions of reading with one's child, conspire to suppress early language and cognitive growth," Guerrero said.

The researchers found that nearly half of Mexican-American and other Latino children were read to once a week or less. Just 14 percent of all white parents read to their children that infrequently.

But the researchers noted that Mexican-American children's social strengths may provide helpful scaffolding for more effective interventions on language and cognitive fronts.

"Researchers have long assumed that poor parents display poor parenting," said UC Berkeley sociologist and study co-author Bruce Fuller. "But we find robust cultural strengths in Mexican-American homes when it comes to raising eager and socially mature preschoolers."

These findings support other recent research based on different data that revealed weak literacy practices, but warm and healthy mothering practices, inside Mexican-American homes. Those findings were released in September by the Society for Research in Child Development in a report co-authored by Fuller and sociology professor Claudia Galindo of the University of Maryland.

The newest results also corroborate earlier empirical indications that most Mexican-American parents nurture socially agile children—whether judged by their parents or teachers—despite being raised in impoverished households and independent of weak literacy traditions in the home.

"But until now, we have not had such a large national sample of Mexican-American children and parents to pin down this claim," Guerrero said.

Thirty-seven percent of Mexican-American families in the sample lived below the federal poverty line, compared with 10 percent of white families. Just 12 percent of all Mexican-American households reported earning more than $50,000 per year in 2003 or 2004, compared with 57 percent of white households.

Spanish was the dominant home language in three-fifths of Mexican-American families, and 54 percent of the mothers were natives of Mexico.

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