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Title: Academic Achievement Among Juvenile Detainees.
Creator: Grigorenko, Elena L, Macomber, Donna, Hart, Lesley, Naples, Adam, Chapman, John, Geib, Catherine F, Chart, Hilary, Tan, Mei, Wolhendler, Baruch, Wagner, Richard
Abstract/Description: The literature has long pointed to heightened frequencies of learning disabilities (LD) within the population of law offenders; however, a systematic appraisal of these observations, careful estimation of these frequencies, and investigation of their correlates and causes have been lacking. Here we present data collected from all youth (1,337 unique admissions, mean age 14.81, 20.3% females) placed in detention in Connecticut (January 1, 2010-July 1, 2011). All youth completed a computerized...
Show moreThe literature has long pointed to heightened frequencies of learning disabilities (LD) within the population of law offenders; however, a systematic appraisal of these observations, careful estimation of these frequencies, and investigation of their correlates and causes have been lacking. Here we present data collected from all youth (1,337 unique admissions, mean age 14.81, 20.3% females) placed in detention in Connecticut (January 1, 2010-July 1, 2011). All youth completed a computerized educational screener designed to test a range of performance in reading (word and text levels) and mathematics. A subsample (n = 410) received the Wide Range Achievement Test, in addition to the educational screener. Quantitative (scale-based) and qualitative (grade-equivalence-based) indicators were then analyzed for both assessments. Results established the range of LD in this sample from 13% to 40%, averaging 24.9%. This work provides a systematic exploration of the type and severity of word and text reading and mathematics skill deficiencies among juvenile detainees and builds the foundation for subsequent efforts that may link these deficiencies to both more formal, structured, and variable definitions and classifications of LD, and to other types of disabilities (e.g., intellectual disability) and developmental disorders (e.g., ADHD) that need to be conducted in future research.
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Date Issued: 2015-07-01
Identifier: FSU_pmch_24064502, 10.1177/0022219413500991, PMC5064284, 24064502, 24064502, 0022219413500991
Format: Citation

Title: Examining Associations Among ADHD, Homework Behavior, and Reading Comprehension: A Twin Study..
Creator: Little, Callie W, Hart, Sara A, Schatschneider, Christopher, Taylor, Jeanette
Abstract/Description: Previous literature has indicated an important association between reading comprehension and both attention-deficit/hyperactivity disorder (ADHD) and homework habits. This investigation sought to extend previous knowledge by providing information about how ADHD and homework behavior (i.e., completing homework regularly) may jointly influence reading comprehension. Using a genetically sensitive design, this study examined the genetic and environmental influences on and between ADHD, homework...
Show morePrevious literature has indicated an important association between reading comprehension and both attention-deficit/hyperactivity disorder (ADHD) and homework habits. This investigation sought to extend previous knowledge by providing information about how ADHD and homework behavior (i.e., completing homework regularly) may jointly influence reading comprehension. Using a genetically sensitive design, this study examined the genetic and environmental influences on and between ADHD, homework behavior and reading comprehension. Participants for this study included 691 twin pairs (351 monozygotic, 340 same-sex dizygotic) from the Florida Twin Project on Behavior and Environment (FTP-BE) and 2647 twin pairs (865 monozygotic, 1782 dizygotic) from the larger Florida Twin Project on Reading (FTP-R) in Grades 3 through 7. Three separate models, each representing a different definition of ADHD (full ADHD, inattention only, and hyperactivity/impulsivity only), showed similar patterns of results; therefore, results of the full ADHD model are discussed. Overlapping genetic influences were found between ADHD, homework behavior, and reading comprehension, but no shared environmental influences among all three. However, shared environmental influences overlapped between homework behavior and reading comprehension. Although the sources of this environmental overlap are unknown, these results have implications for improving homework practices and their subsequent influence on literacy skills through homework environments.
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Date Issued: 2016-07-01
Identifier: FSU_pmch_25349092, 10.1177/0022219414555715, PMC4411209, 25349092, 25349092, 0022219414555715
Format: Citation

Title: Examining agreement and longitudinal stability among traditional and RTI-based definitions of reading disability using the affected-status agreement statistic.
Creator: Brown Waesche, Jessica S, Schatschneider, Christopher, Maner, Jon K, Ahmed, Yusra, Wagner, Richard K
Abstract/Description: Rates of agreement among alternative definitions of reading disability and their 1- and 2-year stabilities were examined using a new measure of agreement, the affected-status agreement statistic. Participants were 288,114 first through third grade students. Reading measures were Dynamic Indicators of Basic Early Literacy Skills Oral Reading Fluency and Nonsense Word Fluency, and six levels of severity of poor reading were examined (25th, 20th, 15th, 10th, 5th, and 3rd percentile ranks). Four...
Show moreRates of agreement among alternative definitions of reading disability and their 1- and 2-year stabilities were examined using a new measure of agreement, the affected-status agreement statistic. Participants were 288,114 first through third grade students. Reading measures were Dynamic Indicators of Basic Early Literacy Skills Oral Reading Fluency and Nonsense Word Fluency, and six levels of severity of poor reading were examined (25th, 20th, 15th, 10th, 5th, and 3rd percentile ranks). Four definitions were compared, including traditional unexpected low achievement and three response-to-intervention-based definitions: low achievement, low growth, and dual discrepancy. Rates of agreement were variable but only poor to moderate overall, with poorest agreement between unexpected low achievement and the other definitions. Longitudinal stability was poor, with poorest stability for the low growth definition. Implications for research and practice are discussed.
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Date Issued: 2011-05-01
Identifier: FSU_pmch_21252372, 10.1177/0022219410392048, PMC3248271, 21252372, 21252372, 0022219410392048
Format: Citation

Title: Examining the Relationships of Component Reading Skills to Reading Comprehension in Struggling Adult Readers: A Meta-Analysis..
Creator: Tighe, Elizabeth L, Schatschneider, Christopher
Abstract/Description: The current study employed a meta-analytic approach to investigate the relative importance of component reading skills to reading comprehension in struggling adult readers. A total of 10 component skills were consistently identified across 16 independent studies and 2,707 participants. Random effects models generated 76 predictor-reading comprehension effect sizes among the 10 constructs. The results indicated that six of the component skills exhibited strong relationships with reading...
Show moreThe current study employed a meta-analytic approach to investigate the relative importance of component reading skills to reading comprehension in struggling adult readers. A total of 10 component skills were consistently identified across 16 independent studies and 2,707 participants. Random effects models generated 76 predictor-reading comprehension effect sizes among the 10 constructs. The results indicated that six of the component skills exhibited strong relationships with reading comprehension (average rs ≥ .50): morphological awareness, language comprehension, fluency, oral vocabulary knowledge, real word decoding, and working memory. Three of the component skills yielded moderate relationships with reading comprehension (average rs ≥ .30 and < .50): pseudoword decoding, orthographic knowledge, and phonological awareness. Rapid automatized naming (RAN) was the only component skill that was weakly related to reading comprehension (r = .15). Morphological awareness was a significantly stronger correlate of reading comprehension than phonological awareness and RAN. This study provides the first attempt at a systematic synthesis of the recent research investigating the reading skills of adults with low literacy skills, a historically understudied population. Directions for future research, the relation of our results to the children's literature, and the implications for researchers and adult basic education programs are discussed.
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Date Issued: 2016-07-01
Identifier: FSU_pmch_25350926, 10.1177/0022219414555415, PMC4532638, 25350926, 25350926, 0022219414555415
Format: Citation

Title: Gender Differences in Reading Impairment and in the Identification of Impaired Readers: Results From a Large-Scale Study of At-Risk Readers..
Creator: Quinn, Jamie M, Wagner, Richard K
Abstract/Description: Reading impairment is more common in males, but the magnitude and origin of this gender difference are debated. In a large-scale study of reading impairment among 491,103 beginning second-graders, gender differences increased with greater severity of reading impairment, peaking at a ratio of 2.4:1 for a broad measure of fluency and a ratio of 1.6:1 for a narrow measure of decoding. Results from three tests indicate that gender differences in reading impairment are attributable primarily to...
Show moreReading impairment is more common in males, but the magnitude and origin of this gender difference are debated. In a large-scale study of reading impairment among 491,103 beginning second-graders, gender differences increased with greater severity of reading impairment, peaking at a ratio of 2.4:1 for a broad measure of fluency and a ratio of 1.6:1 for a narrow measure of decoding. Results from three tests indicate that gender differences in reading impairment are attributable primarily to male vulnerability rather than ascertainment bias. Correspondence between identification as an impaired reader by our study criteria and school identification as learning disabled was poor overall and worse for girls: Only 1 out of 4 boys and 1 out of 7 girls identified as reading impaired in our study was school identified as learning disabled.
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Date Issued: 2015-07-01
Identifier: FSU_pmch_24153403, 10.1177/0022219413508323, PMC3997651, 24153403, 24153403, 0022219413508323
Format: Citation

Title: Examining the measurement precision and invariance of the revised get ready to read!.
Creator: Farrington, Amber L, Lonigan, Christopher J
Abstract/Description: Children's emergent literacy skills are highly predictive of later reading abilities. To determine which children have weaker emergent literacy skills and are in need of intervention, it is necessary to assess emergent literacy skills accurately and reliably. In this study, 1,351 children were administered the Revised Get Ready to Read! (GRTR-R), and an item response theory analysis was used to evaluate the item-level reliability of the measure. Differential item functioning (DIF) analyses...
Show moreChildren's emergent literacy skills are highly predictive of later reading abilities. To determine which children have weaker emergent literacy skills and are in need of intervention, it is necessary to assess emergent literacy skills accurately and reliably. In this study, 1,351 children were administered the Revised Get Ready to Read! (GRTR-R), and an item response theory analysis was used to evaluate the item-level reliability of the measure. Differential item functioning (DIF) analyses were conducted to examine whether items function similarly between subpopulations of children. The GRTR-R had acceptable reliability for children whose ability level was just below the mean. DIF for a small number of items was present for only two comparisons-children who were older versus younger and children who were White versus African American. These results demonstrate that the GRTR-R has acceptable reliability and limited DIF, enabling the screener to identify those at risk for developing reading problems.
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Date Issued: 2015-05-01
Identifier: FSU_pmch_23851136, 10.1177/0022219413495568, PMC4762015, 23851136, 23851136, 0022219413495568
Format: Citation

Title: Floor effects associated with universal screening and their impact on the early identification of reading disabilities.
Creator: Catts, Hugh W, Petscher, Yaacov, Schatschneider, Christopher, Sittner Bridges, Mindy, Mendoza, Katherin
Abstract/Description: Response to intervention (RTI) holds great promise for the early identification and prevention of reading disabilities. The success of RTI rests in part on the accuracy of universal screening tools used within this framework. Despite advancements, screening instruments designed to identify children at risk for reading disabilities continue to have limited predictive validity. In this study, the authors examined a common screening instrument for the presence of floor effects and investigated...
Show moreResponse to intervention (RTI) holds great promise for the early identification and prevention of reading disabilities. The success of RTI rests in part on the accuracy of universal screening tools used within this framework. Despite advancements, screening instruments designed to identify children at risk for reading disabilities continue to have limited predictive validity. In this study, the authors examined a common screening instrument for the presence of floor effects and investigated the impact that these effects have on the predictive validity of the instrument. Longitudinal data (kindergarten to third grade) from a large cohort of children were used. These data included children's performance on five measures from the Dynamic Indicators of Basic Early Literacy Skills (DIBELS) and two reading achievement outcome measures. The results showed that DIBELS measures were characterized by floor effects in their initial administrations and that these effects reduced the predictive validity of the measures. The implications of these findings for early identification are discussed.
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Date Issued: 2009-03-01
Identifier: FSU_pmch_19098274, 10.1177/0022219408326219, PMC4308976, 19098274, 19098274, 0022219408326219
Format: Citation

Title: Identifying preschool children at risk of later reading difficulties: evaluation of two emergent literacy screening tools..
Creator: Wilson, Shauna B, Lonigan, Christopher J
Abstract/Description: Emergent literacy skills are predictive of children's early reading success, and literacy achievement in early schooling declines more rapidly for children who are below-average readers. It is therefore important for teachers to identify accurately children at risk for later reading difficulty so children can be exposed to effective emergent literacy interventions. In this study, 176 preschoolers were administered two screening tools, the Revised Get Ready to Read! (GRTR-R) and the Individual...
Show moreEmergent literacy skills are predictive of children's early reading success, and literacy achievement in early schooling declines more rapidly for children who are below-average readers. It is therefore important for teachers to identify accurately children at risk for later reading difficulty so children can be exposed to effective emergent literacy interventions. In this study, 176 preschoolers were administered two screening tools, the Revised Get Ready to Read! (GRTR-R) and the Individual Growth and Development Indicators (IGDIs), and a diagnostic measure at two time points. Receiver operating characteristic curve analyses revealed that, at optimal cut scores, GRTR-R provided more accurate classification of children's overall emergent literacy skills than did IGDIs. However, neither measure was particularly good at classifying specific emergent literacy skills.
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Date Issued: 2010-01-01
Identifier: FSU_pmch_19822699, 10.1177/0022219409345007, PMC3880683, 19822699, 19822699, 0022219409345007
Format: Citation

Title: Inhibitory Control of Spanish-Speaking Language-Minority Preschool Children: Measurement and Association With Language, Literacy, and Math Skills..
Creator: Lonigan, Christopher J, Allan, Darcey M, Goodrich, J Marc, Farrington, Amber L, Phillips, Beth M
Abstract/Description: Children's self-regulation, including components of executive function such as inhibitory control, is related concurrently and longitudinally with elementary school children's reading and math abilities. Although several recent studies have examined links between preschool children's self-regulation or executive function and their academic skill development, few included large numbers of Spanish-speaking language-minority children. Among the fastest growing segments of the U.S. school-age...
Show moreChildren's self-regulation, including components of executive function such as inhibitory control, is related concurrently and longitudinally with elementary school children's reading and math abilities. Although several recent studies have examined links between preschool children's self-regulation or executive function and their academic skill development, few included large numbers of Spanish-speaking language-minority children. Among the fastest growing segments of the U.S. school-age population, many of these children are at significant risk of academic difficulties. We examined the relations between inhibitory control and academic skills in a sample containing a large number of Spanish-speaking preschoolers. Overall, the children demonstrated substantial academic risk based on preschool-entry vocabulary scores in the below-average range. Children completed assessments of language, literacy, and math skills in English and Spanish, when appropriate, at the start and end of their preschool year, along with a measure of inhibitory control, the Head-Toes-Knees-Shoulders task, which was administered at the start of the preschool year in the child's dominant conversational language. Scores on this last measure were lower for children for whom it was administered in Spanish. For both English and Spanish outcomes, those scores were significantly and uniquely associated with higher scores on measures of phonological awareness and math skills but not vocabulary or print knowledge skills.
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Date Issued: 2017-07-01
Identifier: FSU_pmch_26631366, 10.1177/0022219415618498, PMC5432406, 26631366, 26631366, 0022219415618498
Format: Citation

Title: Comparing two forms of dynamic assessment and traditional assessment of preschool phonological awareness.
Creator: Thatcher Kantor, Patricia, Wagner, Richard K, Torgesen, Joseph K, Rashotte, Carol A
Abstract/Description: The goal of the current study was to compare two forms of dynamic assessment and standard assessment of preschool children's phonological awareness. The first form of dynamic assessment was a form of scaffolding in which item formats were modified in response to an error so as to make the task easier or more explicit. The second form of dynamic assessment was direct instruction of the phonological awareness tasks. The results indicate that preschool children's phonological awareness can be...
Show moreThe goal of the current study was to compare two forms of dynamic assessment and standard assessment of preschool children's phonological awareness. The first form of dynamic assessment was a form of scaffolding in which item formats were modified in response to an error so as to make the task easier or more explicit. The second form of dynamic assessment was direct instruction of the phonological awareness tasks. The results indicate that preschool children's phonological awareness can be assessed using standard assessment procedures, provided the items require processing units larger than the individual phoneme. No advantage was found in reliability or validity for either dynamic assessment condition relative to the standard assessment condition. Dynamic assessment does not appear to improve reliability or validity of phonological awareness assessments when preschool children are given tasks that they can perform using standard administration procedures.
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Date Issued: 2011-07-01
Identifier: FSU_pmch_21685350, 10.1177/0022219411407861, PMC3179788, 21685350, 21685350, 0022219411407861
Format: Citation

Title: Dynamic assessment and response to intervention: two sides of one coin..
Creator: Grigorenko, Elena L
Abstract/Description: This article compares and contrasts the main features of dynamic testing and assessment (DT/A) and response to intervention (RTI). The comparison is carried out along the following lines: (a) historical and empirical roots of both concepts, (b) premises underlying DT/A and RTI, (c) terms used in these concepts, (d) use of these concepts, (e) evidence in support of DT/A and RTI, and (f) expectations associated with each of the concepts. The main outcome of this comparison is a conclusion that...
Show moreThis article compares and contrasts the main features of dynamic testing and assessment (DT/A) and response to intervention (RTI). The comparison is carried out along the following lines: (a) historical and empirical roots of both concepts, (b) premises underlying DT/A and RTI, (c) terms used in these concepts, (d) use of these concepts, (e) evidence in support of DT/A and RTI, and (f) expectations associated with each of the concepts. The main outcome of this comparison is a conclusion that both approaches belong to one family of methodologies in psychology and education whose key feature is in blending assessment and intervention in one holistic activity. Because DT/A has been around much longer than RTI, it makes sense for the proponents of RTI to consider both the accomplishments and frustrations that have accumulated in the field of DT/A.
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Date Issued: 2009-03-01
Identifier: FSU_pmch_19073895, 10.1177/0022219408326207, PMC3575109, 19073895, 19073895, 0022219408326207
Format: Citation

Title: Dynamic assessment and its implications for RTI models.
Creator: Wagner, Richard K, Compton, Donald L
Date Issued: 2011-07-01
Identifier: FSU_pmch_21965252, 10.1177/0022219411407859, PMC3187556, 21965252, 21965252, 44/4/311
Format: Citation

Title: Development of oral reading fluency in children with speech or language impairments: a growth curve analysis..
Creator: Puranik, Cynthia S, Petscher, Yaacov, Al Otaiba, Stephanie, Catts, Hugh W, Lonigan, Christopher J
Abstract/Description: This longitudinal study used piece-wise growth curve analyses to examine growth patterns in oral reading fluency for 1,991 students with speech impairments (SI) or language impairments (LI) from first through third grade. The main finding of this study was that a diagnosis of SI or LI can have a detrimental and persistent effect on early reading skills. Results indicated differences between subgroups in growth trajectories that were evident in first grade. A large proportion of students with...
Show moreThis longitudinal study used piece-wise growth curve analyses to examine growth patterns in oral reading fluency for 1,991 students with speech impairments (SI) or language impairments (LI) from first through third grade. The main finding of this study was that a diagnosis of SI or LI can have a detrimental and persistent effect on early reading skills. Results indicated differences between subgroups in growth trajectories that were evident in first grade. A large proportion of students with SI or LI did not meet grade-level reading fluency benchmarks. Overall students with SI showed better performance than students with LI. Reading fluency performance was negatively related to the persistence of the SI or LI; the lowest performing students were those originally identified with SI or LI whose diagnosis changed to a learning disability. The results underscore the need to identify, monitor, and address reading fluency difficulties early among students with SI or LI.
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Date Issued: 2008-11-01
Identifier: FSU_pmch_18625782, 10.1177/0022219408317858, PMC3279740, 18625782, 18625782, 0022219408317858
Format: Citation

Title: Reconsidering the simple view of reading in an intriguing case of equivalent models: commentary on Tunmer and Chapman (2012)..
Creator: Wagner, Richard K, Herrera, Sarah K, Spencer, Mercedes, Quinn, Jamie M
Abstract/Description: Recently, Tunmer and Chapman provided an alternative model of how decoding and listening comprehension affect reading comprehension that challenges the simple view of reading. They questioned the simple view's fundamental assumption that oral language comprehension and decoding make independent contributions to reading comprehension by arguing that one component of oral language comprehension (vocabulary) affects decoding. They reported results from hierarchical regression analyses,...
Show moreRecently, Tunmer and Chapman provided an alternative model of how decoding and listening comprehension affect reading comprehension that challenges the simple view of reading. They questioned the simple view's fundamental assumption that oral language comprehension and decoding make independent contributions to reading comprehension by arguing that one component of oral language comprehension (vocabulary) affects decoding. They reported results from hierarchical regression analyses, exploratory factor analysis, and structural equation modeling to justify their conclusion. Their structural equation modeling results provided the strongest and most direct test of their alternative view. However, they incorrectly specified their simple view model. When correctly specified, the simple view of reading model and an alternative model in which listening comprehension affects decoding provide identically good fits to the data. This results from the fact that they are equivalent models. Although Tunmer and Chapman's results do not support their assertion that a model in which oral language comprehension affects decoding provides a better fit to their data, the presence of equivalent models provides an ironic twist: The mountain of evidence that supports the simple view of reading provides equivalent support to their alternative interpretation. Additional studies are needed to differentiate these two theoretical accounts.
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Date Issued: 2015-03-01
Identifier: FSU_pmch_25095787, 10.1177/0022219414544544, PMC4318790, 25095787, 25095787, 0022219414544544
Format: Citation

Title: Relations among student attention behaviors, teacher practices, and beginning word reading skill.
Creator: Sáez, Leilani, Folsom, Jessica Sidler, Al Otaiba, Stephanie, Schatschneider, Christopher
Abstract/Description: The role of student attention for predicting kindergarten word reading was investigated among 432 students. Using Strengths and Weaknesses of ADHD Symptoms and Normal Behavior Rating Scale behavior rating scores, the authors conducted an exploratory factor analysis, which yielded three distinct factors that reflected selective attention. In this study, the authors focused on the role of one of these factors, which they labeled attention-memory, for predicting reading performance. Teacher...
Show moreThe role of student attention for predicting kindergarten word reading was investigated among 432 students. Using Strengths and Weaknesses of ADHD Symptoms and Normal Behavior Rating Scale behavior rating scores, the authors conducted an exploratory factor analysis, which yielded three distinct factors that reflected selective attention. In this study, the authors focused on the role of one of these factors, which they labeled attention-memory, for predicting reading performance. Teacher ratings of attention-memory predicted word reading above and beyond the contribution of phonological awareness and vocabulary knowledge. In addition, the relations between four teacher practices and attention ratings for predicting reading performance were examined. Using hierarchical linear modeling, the authors found significant interactions between student attention and teacher practices observed during literacy instruction. In general, as ratings of attention improved, better kindergarten word reading performance was associated with high levels of classroom behavior management. However, better word reading performance was not associated with high levels of teacher task orienting. A significant three-way interaction was also found among attention, individualized instruction, and teacher task redirections. The role of regulating kindergarten student attention to support beginning word reading skill development is discussed.
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Date Issued: 2012-09-01
Identifier: FSU_pmch_22207616, 10.1177/0022219411431243, PMC3328644, 22207616, 22207616, 0022219411431243
Format: Citation

Title: The componential model of reading: predicting first grade reading performance of culturally diverse students from ecological, psychological, and cognitive factors assessed at kindergarten entry..
Creator: Ortiz, Miriam, Folsom, Jessica S, Al Otaiba, Stephanie, Greulich, Luana, Thomas-Tate, Shurita, Connor, Carol M
Abstract/Description: This study, framed by the component model of reading (CMR), examined the relative importance of kindergarten-entry predictors of first grade reading performance. Specifically, elements within the ecological domain included dialect, maternal education, amount of preschool, and home literacy; elements within the psychological domain included teacher-reported academic competence, social skills, and behavior; and elements within the cognitive domain included initial vocabulary, phonological, and...
Show moreThis study, framed by the component model of reading (CMR), examined the relative importance of kindergarten-entry predictors of first grade reading performance. Specifically, elements within the ecological domain included dialect, maternal education, amount of preschool, and home literacy; elements within the psychological domain included teacher-reported academic competence, social skills, and behavior; and elements within the cognitive domain included initial vocabulary, phonological, and morpho-syntactic skills, and alphabetic and word recognition skills. Data were obtained for 224 culturally diverse kindergarteners (58% Black, 34% White, and 8% Hispanic or other; 58% received free or reduced-price lunch) from a larger study conducted in seven predominantly high poverty schools (n = 20 classrooms) in a midsized city school district in northern Florida. Results from a hierarchical multiple regression (with variables in the ecological domain entered first, followed by the psychological and cognitive domains) revealed a model that explained roughly 56% of the variance in first grade reading achievement, using fall-of-kindergarten predictors. Letter-word reading and morpho-syntactic skill were the strongest significant predictors. The findings largely support the CMR model as a means to understand individual differences in reading acquisition and, in turn, to support data-based instructional decisions for a wider range of children.
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Date Issued: 2012-09-01
Identifier: FSU_pmch_22227395, 10.1177/0022219411431242, PMC3328636, 22227395, 22227395, 0022219411431242
Format: Citation

Florida Learning Disability Research Center (16)	+ -
Florida Center for Reading Research (1)	+ -

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Schatschneider, Christopher (5)	+ -
Wagner, Richard K (5)	+ -
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