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Biomedical subjects

N B Davis

Publications and source records attributed to N B Davis.

11 recordsLinked to original sources

Gender and racial differences in mathematical performance.

The authors examined gender and racial differences in mathematics performance among 5th- and 8th-grade students in the United States. Math performance was assessed by scores on the math-concepts and math-computation sections of the California Achievement Test (CTB/McGraw-Hill, 1986) given at the end of the previous year. There were no significant gender differences, but in both grades, the White students scored significantly higher than the Black students. The racial differences were more pronounced in the scores for concepts than in the scores for computation. Responses to a parent questionnaire showed significant relationships between parents' self-reported math anxiety, parents' most advanced math course, and parents' education level in relation to the child's math performance. Differences in these relationships suggest that, although parents' beliefs and attitudes about math influence their child's math performance, the relationship is complex and may vary with race.

Achievement↗

Motor vehicle crashes and positive toxicology screens in adolescents and young adults.

The purpose of this study was to identify and describe the outcome of motor vehicle crashes for adolescents and young adults with positive toxicology screens. A retrospective design was used to collect data for 134 subjects ranging in age from 15 to 25 at an urban Level II trauma center. Outcomes related to sex, age, injury-severity score, length of stay, and hospital cost were analyzed using multiple regression, and the relationship was significant (p < .0001). Spearman's correlation analysis resulted in a significant relationship between survival outcome, injury severity, discharge, and hospital cost (p < .05).

Accidents, Traffic↗