Coleen D. Carlson

Kindergarten Prediction of Reading Skills: A Longitudinal Comparative Analysis

There is considerable focus in public policy on screening children for reading difficulties. Sixty years of research have not resolved questions of what constructs assessed in kindergarten best predict subsequent reading outcomes. This study assessed the relative importance of multiple measures obtained in a kindergarten sample for the prediction of reading outcomes at the end of 1st and 2nd grades. Analyses revealed that measures of phonological awareness, letter sound knowledge, and naming speed consistently accounted for the unique variance across reading outcomes whereas measures of perceptual skills and oral language and vocabulary did not. These results show that measures of letter name and letter sound knowledge, naming speed, and phonological awareness are good predictors of multiple reading outcomes in Grades 1 and 2.

Relationship of Rapid Automatized Naming and Phonological Awareness in Early Reading Development Implications for the Double-Deficit Hypothesis

It is widely accepted that deficits in phonological awareness skills are related to reading difficulties. Recently, another source of reading difficulty has been identified that involves naming speed, and combined impairments in phonological skills and naming speed will produce more severe reading deficits than single deficits in either of these cognitive skills. The purpose of this study was to investigate the consequences of grouping children based on the presence or absence of deficits in these skills. We demonstrate that the greater severity of reading impairment found in children with a double deficit could be due in part to a statistical artifact caused by grouping children based on their performance on two correlated continuous variables. This artifact also makes it difficult to establish the relative impact of deficits in naming speed on reading ability independent of deficits in phonological awareness.

Effectiveness of an English Intervention for First‐Grade English Language Learners at Risk for Reading Problems

A first‐grade reading and language development intervention for English language learners (Spanish/English) at risk for reading difficulties was examined. The intervention was conducted in the same language as students’ core reading instruction (English). Two hundred sixteen first‐grade students from 14 classrooms in 4 schools from 2 districts were screened in both English and Spanish. Forty‐eight students (22%) did not pass the screening in both languages and were randomly assigned within schools to an intervention or contrast group; after 7 months, 41 students remained in the study. Intervention groups of 3 to 5 students met daily (50 minutes) and were provided systematic and explicit instruction in oral language and reading by trained bilingual reading intervention teachers. Students assigned to the contrast condition received their school’s existing intervention for struggling readers. Intervention students significantly outperformed contrast students on multiple measures of English letter naming, phonological awareness and other language skills, and reading and academic achievement. Differences were less significant for Spanish measures of these domains, though the strongest effects favoring the intervention students were in the areas of phonological awareness and related reading skills.

Measures of Reading Comprehension: A Latent Variable Analysis of the Diagnostic Assessment of Reading Comprehension

This study compares 2 measures of reading comprehension: (a) the Woodcock-Johnson Passage Comprehension test, a standard in reading research, and (b) the Diagnostic Assessment of Reading Comprehension (DARC), an innovative measure. Data from 192 Grade 3 Spanish-speaking English language learners (ELLs) were used to fit a series of latent variable analyses designed to explicitly test the discriminant validity and differential determinants of the 2 measures. Findings indicated that the 2 measures are related (r =. 61) but distinct, and influenced by different factors. The DARC is less strongly related to word-level skills and more strongly related to measures of narrative language production and memory. Both tests are equally influenced by measures of nonverbal reasoning. These differential patterns of relations, which cannot be explained on the basis of differential reliabilities, reflect true differences in the processing demands of the tests for 3rd-grade ELLs.

Effectiveness of Spanish Intervention for First-Grade English Language Learners at Risk for Reading Difficulties

The effectiveness of an explicit, systematic reading intervention for first-grade students whose home language was Spanish and who were at risk for reading difficulties was examined. Participants were 69 students in 20 classrooms in 7 schools from 3 districts who initially did not pass the screening in Spanish and were randomly assigned within schools to a treatment or comparison group; after 7 months, 64 students remained in the study. The intervention matched the language of instruction of their core reading program (Spanish). Treatment groups of 3 to 5 students met daily for 50 min and were provided systematic and explicit instruction in oral language and reading by trained bilingual intervention teachers. Comparison students received the schools standard intervention for struggling readers. Observations during core reading instruction provided information about the reading instruction and language use of the teachers. There were no differences between the treatment and comparison groups in either Spanish or English on any measures at pretest, but there were significant posttest differences in favor of the treatment group for the following outcomes in Spanish: Letter-Sound Identification (d = 0.72), Phonological Awareness composite (d = 0.73), Woodcock Language Proficiency Battery—Revised Oral Language composite (d = 0.35), Word Attack (d = 0.85), Passage Comprehension (d = 0.55), and two measures of reading fluency (d = 0.58—0.75).

Effectiveness of a Spanish Intervention and an English Intervention for English-Language Learners at Risk for Reading Problems

Two studies of Grade 1 reading interventions for English-language (EL) learners at risk for reading problems were conducted. Two samples of EL students were randomly assigned to a treatment or untreated comparison group on the basis of their language of instruction for core reading (i.e., Spanish or English). In all, 91 students completed the English study (43 treatment and 48 comparison), and 80 students completed the Spanish study (35 treatment and 45 comparison). Treatment students received approximately 115 sessions of supplemental reading daily for 50 minutes in groups of 3 to 5. Findings from the English study revealed statistically significant differences in favor of treatment students on English measures of phonological awareness, word attack, word reading, and spelling (effect sizes of 0.35–0.42). Findings from the Spanish study revealed significant differences in favor of treatment students on Spanish measures of phonological awareness, letter-sound and letter-word identification, verbal analogies, word reading fluency, and spelling (effect sizes of 0.33–0.81).

Enhancing Social Studies Vocabulary and Comprehension for Seventh-Grade English Language Learners: Findings From Two Experimental Studies

Abstract Two experimental studies to improve vocabulary knowledge and comprehension were conducted in 7th-grade social studies classes with English language learners (ELLs). Two different nonoverlapping samples of classes of 7th-grade students (N = 381 and N = 507) were randomly assigned at the classroom (i.e., section) level to a social studies intervention or to business as usual comparison groups. The number of sections assigned to treatment was 7 and 9 in Experiments 1 and 2, respectively. Eight sections were assigned to comparison in each experiment. In addition, students were randomly assigned to sections prior to assignment of sections to treatment and control. Treatment students received a multicomponent social studies instruction including explicit vocabulary instruction, use of structured pairing, strategic use of video to build concepts and promote discussion, and use of graphic organizers for approximately 12 weeks daily during social studies class. Findings indicated significant differences in favor of the treatment students on curriculum-based vocabulary and comprehension measures for both experimental studies for all students including students who were ELLs.

The Necessity of the Alphabetic Principle to Phonemic Awareness Instruction.

This investigation examined the extent to whichcurricular choice and incorporation of phonemicawareness (PA) into the kindergarten curriculumaffects growth in kindergarten literacy skillsand first-grade reading and spelling outcomesin 114 classrooms in 32 Title 1 schools for4,872 children (85% African American). Literacy curricula were described as havingmore or less teacher choice and more or less PAand were implemented with ongoing professionaldevelopment. Observations of curriculumfidelities and ratings of student behavior werealso obtained. Alphabetic instruction withoutPA was not as effective as alphabeticinstruction with PA. However, effectiveinstruction in PA and alphabetic codingappeared to be as much a consequence of ongoingprofessional development as it was a functionof prescribed PA activities. Results providelarge-scale classroom support for findings onPA reported by the National Reading Panel[(2000). Teaching children to read: An evidence-basedassessment of the scientific research literature onreading and its implications for reading instruction.Washington, DC: National Institute of Child Health andHuman Development].

Bilingual Phonological Awareness: Multilevel Construct Validation among Spanish-Speaking Kindergarteners in Transitional Bilingual Education Classrooms.

The construct validity of English and Spanish phonological awareness (PA) tasks was examined with a sample of 812 kindergarten children from 71 transitional bilingual education program classrooms located in 3 different types of geographic regions in California and Texas. Tasks of PA, including blending nonwords, segmenting words, and phoneme elision, were measured in Spanish and in English and analyzed via multilevel confirmatory factor analysis at the task level. Results showed that the PA tasks defined a unitary construct at both the student and classroom levels in each language. English and Spanish PA factors were related to each other (.93 and .83 at the student and classroom levels, respectively) as well as to word reading, both within languages (correlations estimated between .74 and .93) and across languages (correlations estimated between .47 and .79). Although the PA constructs were statistically separable in each language, the high correlation between Spanish and English PA indicates considerable overlap in these abilities.

Teacher Characteristics, Classroom Instruction, and Student Literacy and Language Outcomes in Bilingual Kindergartners.

This study investigated the relation of teacher characteristics, including ratings of teacher quality, to classroom instructional variables and to bilingual students’ literacy and oral language outcomes at the end of the kindergarten year. Teacher characteristics included observational measures of oral language proficiency, quality, and classroom activity structure, as well as surveys of knowledge of reading‐related skills. Student outcomes in both languages included letter naming, word reading, and phonological awareness and oral language composites. The study involved 141 teachers from a multisite project who were observed up to 3 times at the beginning, middle, and end of the year during their reading/language arts block while teaching English language learners to read in their primary language (Spanish) and/or in English. Teacher quality, but not teacher knowledge, was related positively to student engagement and negatively to time spent in noninstructional activities. Initial student and classroom performance, language of instruction and of outcomes, and teacher oral language proficiency in both Spanish and English predicted outcomes, whereas teacher quality was less related, and teacher content knowledge was consistently not related to student outcomes.