Bias in learning disabilities placement

A nationwide epidemiologic modeling study of LD: risk, protection, and unintended impact

Through multiple logistic regression modeling, this article explores the relative importance of risk and protective factors associated with learning disabilities (LD). A representative national sample of 6- to 17-year-old students (N = 1,268) was drawn by random stratification and classified by the presence versus absence of LD in reading, spelling, and mathematics according to ability-achievement discrepancies or low achievement levels. The dichotomous classifications were regressed on sets of explanatory variables indicating potential biological, social-environmental, and cognitive factors, problem behavior, and classroom learning behavior. Modeling revealed patterns of high risk for male students and students evincing verbal and nonverbal ability problems and processing speed problems. It was shown that, absent controls for cognitive abilities (such as provided by the ability-achievement discrepancy definition), definitions keyed to low achievement will substantially overidentify ethnic minority and disadvantaged students and will be confounded by significantly higher proportions of students who display oppositional and aggressive behavior problems. Alternatively, good learning behaviors uniformly provide substantial reduction in the risk for LD.

Children in special education programs: attention deficit hyperactivity disorder, use of services, and unmet needs

OBJECTIVES

Attention deficit hyperactivity disorder (ADHD), a common psychiatric condition, may impair a child's ability to learn and to form social relationships, tasks critical to healthy development. This study describes the prevalence of the disorder among children in special education programs and identifies the extent and predictors of unmet service needs.

METHODS

A 2-stage screening protocol of a countywide population of second- through fourth-grade students in special education was conducted to (1) screen for ADHD, employing standardized parent and teacher questionnaires, and determine health services use (n = 499) and (2) perform diagnostic assessments of ADHD (n = 318).

RESULTS

Almost half of the children qualified for a diagnosis of ADHD, yet only half of those were reportedly receiving care for the condition, mainly in the general health care sector. Girls were more than 3 times as likely as boys to have unmet service needs; minority status, low income, and health maintenance organization coverage also emerged as possible risk factors for unmet service needs.

CONCLUSIONS

ADHD is a common yet often untreated condition among children in special education. Mental health services for children with this disorder should be integrated with general health care and special education programs.