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. 2010 Jun;31(5):405-13.
doi: 10.1097/DBP.0b013e3181e121d2.

Improvement in intelligence test scores from 6 to 10 years in children of teenage mothers

Marie D Cornelius  1 , Lidush Goldschmidt, Natacha M De Genna, Gale A Richardson, Sharon L Leech, Richard Day
Affiliations

Improvement in intelligence test scores from 6 to 10 years in children of teenage mothers

Marie D Cornelius et al. J Dev Behav Pediatr. 2010 Jun.

Abstract

Objective: This study investigates change in IQ scores among 290 children born to teenage mothers and identifies social, economic, and environmental variables that may be associated with change in intelligence test performance.

Methods: The children of 290 teenage mothers (72% African-American and 28% European American) were assessed with the Stanford-Binet Intelligence Scale-4th Edition at ages 6 and 10.

Results: The mean composite score at age 6 was 84.8 and 91.2 at age 10, an improvement of 6.4 points. Significant cross-sectional predictors at both ages 6 and 10 of higher Stanford-Binet Intelligence Scale scores were maternal cognitive ability, school grade, white ethnicity, and caregiver education. Having more children in the household significantly predicted lower Stanford-Binet Intelligence Scale scores at age 6. Higher satisfaction with maternal social support predicted higher Stanford-Binet Intelligence Scale scores at age 10. Change in IQ scores was not related to maternal socioeconomic status, social support, home environment, ethnicity, or family interactions. Custodial stability was associated with an improvement in IQ scores, whereas increase in caregiver depression was related to decline in IQ scores.

Conclusions: Our findings suggest that improvement in IQ scores of offspring of teenage mothers may be related to stability of maternal custody. More research is needed to determine the impact of the maturation of adolescent mothers' parenting and the role of early education on improvement in cognitive abilities.

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