Emotional/behavioral disturbance (EBD) is characterized by a range of behaviors that adversely affect a child's academic performance and cannot be explained by other sensory or health impairments. Although research has clearly demonstrated that children and youth with EBD tend to exhibit high rates of problem behavior, research on the characteristics of their academic performance has been less clear. This article reports the results of a meta-analysis of the academic status of students with EBD. The overall effect size was −.64, which indicated that students with EBD had significant deficits in academic achievement. An examination of moderators (subject area, setting, and age) indicated that students with EBD performed at a significantly lower level than did students without disabilities across academic subjects and settings; greater deficits were not observed in older students with EBD (i.e., those more than 12 years old), as compared to younger students. Implications and areas for future research are discussed.

The purpose of this article was to systematically review the available research on learner characteristics that influence the treatment effectiveness of early literacy interventions. Meta-analytic procedures were applied to a total of 30 studies that met the inclusionary and exclusionary criteria. Mean average effect sizes were computed for seven primary learner characteristic categories: (1) rapid naming, (2) alphabetic principle, (3) phonological awareness, (4) problem behavior, (5) memory, (6) IQ, and (7) demographic. The primary learner characteristics that influenced the treatment responsiveness of early literacy interventions were, in order of magnitude, rapid naming, problem behavior, phonological awareness, alphabetic principle, memory, IQ, and demographics. With the exception of the demographic category, the obtained effect sizes for the primary learner characteristics were moderately large. The demographic primary learner characteristic (i.e., disability, ethnicity, grade-level status) of children was not statistically (p < 0.05) distinct from zero. The findings, limitations, and future research needs are discussed.

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This study examined the effects of an intensive shared book-reading intervention on the vocabulary development of preschool children who were at risk for vocabulary delay. The participants were 125 children, who the researchers stratified by classroom and randomly assigned to one of two shared book-reading conditions (i.e., the experimental, Words of Oral Reading and Language Development [WORLD] intervention; or typical practice). Results on researcher-developed measures showed statistically and practically significant effects for the WORLD intervention with no differential effects for children with higher versus lower entry-level vocabulary knowledge. The researchers detected no statistically significant differences on standardized measures. Results suggest that a combination of instructional factors may be necessary to enhance the efficacy of shared book reading for children with early vocabulary difficulties.