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General academic words are those which are typically learned through exposure to school texts and occur across disciplines. We examined academic vocabulary assessment data from a group of English-speaking middle school students (N = 1,747). We tested how word frequency, complexity, proximity, polysemy, and diversity related to students' knowledge of target words across ability levels. Our results affirm the strong relation between vocabulary and reading at the individual level. Strong readers were more likely to know the meanings of words than struggling readers were, regardless of the features of the academic words tested. Words with more meanings were easier for all students, on average. The relation between word frequency and item difficulty was stronger among better readers, whereas the relation between word complexity and item difficulty was stronger among less proficient readers. Our examination of academic words' characteristics and how these characteristics relate to word difficulty across reading performance has implications for instruction.

In this cluster randomized control trial study, the authors explored the efficacy of an intervention designed to improve second-grade English learners' knowledge of challenging, high-utility English vocabulary. The authors also examined whether the intervention had a differential effect on content words that differ on two attributes (cognate status and abstractness designation) and whether the effects lasted across time. Within schools, teachers were randomly assigned to treatment or control conditions, resulting in 12 treatment classrooms and 10 control classrooms. Teachers in the treatment condition developed vocabulary using six methods: interactive shared reading, direct instruction of individual words, instruction in cognate use, activities to foster word consciousness and reinforce instructed words, and use of visual and linguistic supports. Teachers in the control condition read the same books with the target vocabulary inserted into the stories. Findings on the curriculum-based and standardized measure of vocabulary indicated that the intervention implemented for four 50-minute lessons per week for 18 weeks was effective in helping English learners acquire challenging high-utility school-relevant vocabulary (Cohen's d = 1.88 for content words; d = 0.41 for connecting words; d = 0.47 for the Test of Oral Language Development). The effects differed by word characteristics, with higher effect sizes for words that are noncognates (d = 1.57 for both concrete and abstract noncognates; d = 1.02 concrete cognates; d = 0.81 for abstract cognates). Ten months after the intervention, treatment students still outperformed control students on content vocabulary learned during the intervention (d = 1.31). This study helps validate a multifaceted approach to vocabulary intervention and research.

This study examined the initial efficacy of World Generation (WorldGen), a Tier I social studies instructional approach for emergent bilingual (EB) students and their native English‐speaking (non‐EB) peers in Grades 6 and 7. WorldGen builds on prior research on instructional practices that have been associated with improved content knowledge and literacy outcomes for EBs in classes of students with varying English proficiency. Using a within‐teacher design, middle grades world history teachers' classes were randomly assigned to WorldGen treatment (17) or comparison conditions (16) for three to four approximately two‐week units. The student sample included 42% EBs. Students in the treatment condition (n = 373) scored higher, on average, on world history content (Hedges' g = 0.47) and vocabulary knowledge (Hedges' g = 0.41) than students in the comparison condition (n = 343) but no statistically significant findings were yielded regarding disciplinary literacy skills at the end of WorldGen instruction. Of primary interest, the statistically significant main effects indicated that world history content knowledge and vocabulary learning was similar for both current EB and non‐EB students in the treatment condition. The findings provide initial support for the use of the WorldGen instructional practices for improving content acquisition and vocabulary in general education social studies classes with students with a range of English proficiency. Furthermore, teachers perceived the WorldGen instructional practices and materials as providing the information and learning experiences necessary to support students in meeting grade‐level expectations. [ABSTRACT FROM AUTHOR]

This study investigated the effectiveness of combining enhanced classroom instruction and intense supplemental intervention for struggling readers in first grade. Further, it compared two supplemental interventions derived from distinct theoretical orientations, examining them in terms of effects on academic outcomes and whether children's characteristics were differentially related to an instructional intervention. One intervention (Proactive Reading) was aligned with behavioral theory and was derived from the model of Direct Instruction. The other intervention (Responsive Reading) was aligned with a cognitive theory and was derived from a cognitive-apprenticeship model. These interventions were provided to small groups of first-grade students at risk for reading difficulties. Students were assessed on various reading and reading-related measures associated with success in beginning reading. Results indicated that (a) first-grade students who were at risk for reading failure and who received supplemental instruction in the Responsive or Proactive interventions scored higher on measures of reading and reading-related skills than students who received only enhanced classroom instruction, (b) enhanced classroom instruction appeared to promote high levels of reading growth for many children at risk for reading failure, (c) the two interventions were essentially equally effective even though they reflected different theoretical perspectives, and (d) children's characteristics did not differentially predict the effectiveness of an intervention.

General academic words are those which are typically learned through exposure to school texts and occur across disciplines. We examined academic vocabulary assessment data from a group of English‐speaking middle school students (N = 1,747). We tested how word frequency, complexity, proximity, polysemy, and diversity related to students' knowledge of target words across ability levels. Our results affirm the strong relation between vocabulary and reading at the individual level. Strong readers were more likely to know the meanings of words than struggling readers were, regardless of the features of the academic words tested. Words with more meanings were easier for all students, on average. The relation between word frequency and item difficulty was stronger among better readers, whereas the relation between word complexity and item difficulty was stronger among less proficient readers. Our examination of academic words' characteristics and how these characteristics relate to word difficulty across reading performance has implications for instruction. [ABSTRACT FROM AUTHOR]

In this cluster randomized control trial study, the authors explored the efficacy of an intervention designed to improve second‐grade English learners' knowledge of challenging, high‐utility English vocabulary. The authors also examined whether the intervention had a differential effect on content words that differ on two attributes (cognate status and abstractness designation) and whether the effects lasted across time. Within schools, teachers were randomly assigned to treatment or control conditions, resulting in 12 treatment classrooms and 10 control classrooms. Teachers in the treatment condition developed vocabulary using six methods: interactive shared reading, direct instruction of individual words, instruction in cognate use, activities to foster word consciousness and reinforce instructed words, and use of visual and linguistic supports. Teachers in the control condition read the same books with the target vocabulary inserted into the stories. Findings on the curriculum‐based and standardized measure of vocabulary indicated that the intervention implemented for four 50‐minute lessons per week for 18 weeks was effective in helping English learners acquire challenging high‐utility school‐relevant vocabulary (Cohen's d = 1.88 for content words; d = 0.41 for connecting words; d = 0.47 for the Test of Oral Language Development). The effects differed by word characteristics, with higher effect sizes for words that are noncognates (d = 1.57 for both concrete and abstract noncognates; d = 1.02 concrete cognates; d = 0.81 for abstract cognates). Ten months after the intervention, treatment students still outperformed control students on content vocabulary learned during the intervention (d = 1.31). This study helps validate a multifaceted approach to vocabulary intervention and research. [ABSTRACT FROM AUTHOR]