Measures Of Reading Performance Research Articles

Repeatability of visual function measures in age-related macular degeneration

To assess repeatability of visual function measures in patients with early, intermediate or late age-related macular degeneration (AMD) without active neovascular disease in the study eye, but active neovascular AMD in the fellow eye. One hundred subjects from an ongoing trial were screened for this study in which their LogMAR acuity, contrast sensitivity and reading performance were assessed using standardised protocols by trained optometrists. The same measures were repeated one month later and repeatability of the visual functions assessed. Data from 83 subjects satisfied inclusion criteria for analysis. Coefficient of repeatability was 14.9 letters for LogMAR visual acuity , 7.2 letters for Pelli Robson contrast sensitivity, 0.72 for LogMAR reading acuity, 110.4 words/ min for reading speed and 0.67 for LogMAR critical print size. Intraclass correlation coefficients allowed comparison between measures and were found to be 0.96 for LogMAR visual acuity, 0.93 for contrast sensitivity, 0.75 for LogMAR reading acuity, 0.79 for reading speed and 0.74 for LogMAR critical print size. Coefficients of variation were 9.4%, 10.7%, 48.4%, 28.4% and 31.8% respectively. We found coefficients of repeatability that concurred with previous studies demonstrating variability of visual functions in patients with AMD. In addition, we found intraclass correlation coefficients to be better with visual acuity and contrast sensitivity than with measures of reading performance.

Re-examining the Relationship between Strategy Use and L2 Reading Performance

The purpose of this study is to more precisely examine the relationship between strategy use and reading performance in L2 by taking into account the possible variation in the relationship according to the manner of eliciting strategy use and the type of reading performance observed. Thirty three students majoring in education participated in the study. Strategy use was elicited by three different measures - survey (administered without a text to read), think-aloud (while reading a text), and check-list (after reading the text). Two different types of task were used as the measure of reading performance - a reading comprehension test and a summarization task. The results showed that there was considerable variation in the relationships between reading strategy use and reading performance depending on the elicitation method, that there were specific strategy categories which better explained the performance in a certain type of reading performance, and that frequent use of certain strategies even could be detrimental in reading performance. Implications for both L2 reading instruction and reading research were stated along with limitations of the current study.

Effects of noise in high schools on pupils' perceptions and performance

A recent project has investigated acoustical conditions in secondary (high) schools, and examined the effects of a poor acoustic environment on teaching and learning of 11- to 16-year-olds. Around 2600 pupils from suburban secondary schools in England responded to an online questionnaire concerning the acoustic environment in their schools. The questionnaire data highlighted the differential effects of noise reported by more vulnerable learners. A repeated measures experimental study involving 572 pupils examined reading performance under two different classroom noise simulations. Results revealed a complex pattern reflecting noise levels, time of testing and measure of reading performance used. Reading text while exposed to classroom noise of 70 dB resulted in quicker reading but less accuracy in measures of reading comprehension compared with performance in 50 dB. The data further suggested that the pupils were not processing the text as deeply as was evident from their reduced lexical learning. There were also interactions with time of testing highlighting the importance of examining the effects of chronic exposure in addition to single session experimental testing. The test results show that capturing the effects of noise on pupils’ learning in realistic classroom environments raises a number of methodological and analytical problems.

Classroom Observations and Effects of Reading Interventions for Students at Risk for Emotional and Behavioral Disorders

This study investigated the effects of small-group reading interventions, implemented within a schoolwide positive behavior support model, on elementary students with and without risk for emotional and behavior disorders. Participating schools and students were part of a larger randomized controlled group study. A subset of the larger study, four experimental and four comparison schools, participated in this current study. Participants included 117 first- through third-grade students who were identified through a systematic screening process as having reading or behavior/reading risk. Direct observation and reading performance measures yielded several important outcomes. Students receiving small-group interventions within the experimental group spent more time in small-group instruction and during that instruction were more actively engaged in reading aloud and academic responding. These differences translated into differential gains between groups on the Dynamic Indicators of Early Literacy Skills—DIBELS nonsense word fluency and oral reading fluency measures. In addition, with intensive small-group reading interventions, students with the combined behavior/reading risk were as responsive to the intervention as students with reading risk alone. No differences were recognized for student conduct or for reading outcomes on the Woodcock Reading Mastery Test. Implications for future research and practice are discussed.

Gender ratios for reading difficulties

The prevalence of reading difficulties is typically higher in males than females in both referred and research-identified samples, and the ratio of males to females is greater in more affected samples. To explore possible gender differences in reading performance, we analysed data from 1133 twin pairs in which at least one member of each pair had a school history of reading problems and from 684 twin pairs from a comparison sample with no reading difficulties. Although the difference between the average scores of males and females in these two samples was very small, the variance of reading performance was significantly greater for males in both groups. We suggest that a greater variance of reading performance measures in males may account at least in part for their higher prevalence of reading difficulties as well as for the higher gender ratios that are observed in more severely impaired samples.

Gender ratios for reading disability: Are there really more boys than girls who are low-progress readers?

Extensive research over the past decade has indicated that there are more boys than girls who are struggling readers, but the degree to which there are more boys remains a point of contention. The focus of this article is to review the various definitions of reading disability, to examine how these different definitions translate into different methods of identifying reading disability and to determine the effects on observed gender ratios for reading disability. The most frequently used methods of identifying reading disability are discrepancy formulae, Response-To-Intervention (RTI) and low achievement methods. Gender ratios clearly fluctuate among, and even within, these methods. Inconsistencies in reported gender ratios of reading disability are a result of inconsistencies in the definition and measurement of reading disability, sampling issues and the overall distributions of reading scores for boys and girls. Future research might consider reporting gender ratios for reading disability based on consistent measures of reading performance in population samples, using consistent cut off points, over a significant period of time.

Cohesion, Instructional Time and Reading Performance at MUGC Summer Enrichment Program

As schools attempt to improve the services to struggling readers, teachers are encouraged to work collaboratively to enhance instruction. Studies are needed to examine the effects of teaming on student performance. The purpose of this study was to determine if team cohesion or instructional time at the Marshall University Graduate College Summer Enrichment Program (MUGCSEP) would be correlated with measures of reading performance for students who attended the program. Statistical analyses yielded a statistically significant correlation between cohesion, instructional time and reading performance during the 2006 program. While in 2007, instructional time was not significantly correlated, cohesion results yielded a mildly inverse statistically significant correlation with reading performance. Due to differences in assessment procedures between the years, this finding supports the possibility that team cohesion may be an important factor in the assessment of children's reading performance.

Etiology of the Stability of Reading Difficulties: The Longitudinal Twin Study of Reading Disabilities

Results obtained from previous longitudinal studies of reading difficulties indicate that reading deficits are generally stable. However, little is known about the etiology of this stability. Thus, the primary objective of this first longitudinal twin study of reading difficulties is to provide an initial assessment of genetic and environmental influences on the stability of reading deficits. Data were analyzed from a sample of 56 twin pairs, 18 identical (monozygotic, MZ) and 38 fraternal (dizygotic, DZ), in which at least one member of each pair was classified as reading-disabled in the Colorado Learning Disabilities Research Center, and on whom follow-up data were available. The twins were tested at two time points (average age of 10.3 years at initial assessment and 16.1 years at follow-up). A composite measure of reading performance (PIAT Reading Recognition, Reading Comprehension and Spelling) was highly stable, with a stability correlation of .84. Data from the initial time point were first subjected to univariate DeFries-Fulker multiple regression analysis and the resulting estimate of the heritability of the group deficit (h2g) was .84 (+/-.26). When the initial and follow-up data were then fitted to a bivariate extension of the basic DF model, bivariate heritability was estimated at .65, indicating that common genetic influences account for approximately 75% of the stability between reading measures at the two time points.

Language‐related differences between discrepancy‐defined and non‐discrepancy‐defined poor readers: a longitudinal study of dyslexia in New Zealand

Language-related differences between discrepancy-defined and non-discrepancy-defined poor readers were examined in a three-year longitudinal study that began at school entry. The discrepancy-defined (dyslexic) poor readers (n=19) were identified in terms of poor reading comprehension and average or above average listening comprehension performance, and the non-discrepancy-defined (non-dyslexic) poor readers (n=19) in terms of both poor reading and listening comprehension performance. The two poor reader groups and a group of normally developing readers (n=55) were given several oral language, phonological processing, and reading performance measures at six testing occasions. Results indicated that in addition to expected differences on the oral language measures, the non-discrepancy-defined poor readers also showed greater phonological processing deficits than the dyslexic poor readers. The results are discussed in terms of the lack of official recognition of dyslexia in New Zealand, the whole language orientation of classroom reading instruction, and the inadequacy of Reading Recovery for minimizing reading problems.

Dyslexia: 1965–2005

William Yule's many contributions to the field of reading disabilities over the last 40 years are reviewed and set in the context of recent research evidence. The value of regression methods in the measurement of reading performance remains valid, but spelling, as well as reading, difficulties need to be assessed in relation to the diagnosis of dyslexia. Although categorical approaches to diagnosis are needed for some purposes, it is likely that the genetic liability to dyslexia is dimensional. Overall, Yule's identification of the key features of specific reading retardation have been confirmed by subsequent research, but the concept of general reading backwardness as a diagnosis has proved less meaningful. The identification of the high rate of comorbidity between reading disability and emotional/behavioural disturbance, highlighted by Yule 35 years ago, has been amply confirmed but the causal mechanisms remain ill-understood.

TDT-association analysis of EKN1 and dyslexia in a Colorado twin cohort

A candidate gene, EKN1, was recently described in a cohort from Finland for the dyslexia locus on chromosome 15q, DYX1. This report described a (2;15) (q11;21) translocation disrupting EKN1 that cosegregated with dyslexia in a two-generation family. It also characterized a sequence polymorphism in the 5' untranslated region and a missense mutation that showed significant association in 109 dyslexics compared to 195 controls (p=0.002 and p=0.006, respectively). To confirm these results we interrogated the same polymorphisms in a cohort of 150 nuclear families with dyslexia ascertained through the Colorado Learning Disabilities Research Center. Using QTDT analysis with nine individual quantitative tasks and two composite measures of reading performance, we could not replicate the reported association. We conclude that the polymorphisms identified in the Finland sample are unlikely to be functional DNA changes contributing to dyslexia, and that if variation in EKN1 is causal such changes are more likely to be in regulatory regions that were not sequenced in this study. Alternatively, the published findings of association with markers in EKN1 may reflect linkage disequilibrium with variation in another gene(s) in the region.

Refinement of the 6p21.3 quantitative trait locus influencing dyslexia: linkage and association analyses.

Reading disability (RD), or dyslexia, is the most common learning disability with a prevalence rate of ~5%-10% in school-age children. RD is highly heritable with evidence of a neurobiological origin. Linkage studies have identified several quantitative trait loci (QTLs) for RD. The QTL on chromosome 6p21.3 has been independently replicated by several groups and spans a 16.4-Mb (13.8 cM) interval from D6S109 to D6S291. In this study, we performed sib-pair linkage analyses with Haseman-Elston and DeFries-Fulker methods to define more accurately the QTL interval. Linkage was assessed by using five quantitative phenotypes, including a composite measure of reading performance and four component phenotypes. When probands were selected for severe scores, single- and multi-point analyses showed significant linkage with all five phenotypes, converging over an interval of ~3.24 Mb spanning D6S1597 to D6S1571. Maximal linkage converged at marker D6S1554 across phenotypes. Out of 12 genes in the linkage interval, ten clustered within ~680 kb and were selected for association analysis based on central nervous system expression and putative function. Marker-trait associations were assessed by using QTDT (a general test of association for quantitative traits) and the family-based association test (FBAT), and haplotype analysis was performed by using FBAT and the GeneHunter Transmission/Disequilibrium Test TDT. Marker associations were detected in five of the ten genes, results that were corroborated by our haplotype TDT analysis. The results of the association study have thereby allowed us to significantly reduce the number of possible candidate genes and to prioritize genes for further mutation screening.

Reading performance in children with low vision

Purpose:While educators and optometrists are concerned with reading efficiency in children with low vision, in most low vision assessments, children's reading performance is assessed only by a brief evaluation of reading fluency. We examined the relationships between clinical vision measures and reading performance in children with low vision. Methods:Subjects were 71 students with low vision, aged seven to 18 years. The vision and reading performance measures were: high contrast distance visual acuity, contrast sensitivity using both the Pelli‐Robson and LH symbol charts, near text visual acuity and reading rates on a range of print sizes. Results:Most children achieved maximum reading rate at print sizes between 2.5 and seven times larger than threshold print size. Maximum reading rate increased significantly with age and near visual acuity. There was no significant relationship between reading rate and contrast sensitivity. Conclusions:The majority of children with low vision can achieve near normal reading rates with magnification. Age is the strongest predictor of reading rate in children with low vision. They need print sizes well above threshold to achieve maximum reading rate. Routine contrast sensitivity testing of visually impaired students is not indicated for reading assessment.

Etiology of Neuroanatomical Correlates of Reading Disability

The heritable nature of reading disability has been well documented (DeFries & Alarcon, 1996), and possible abnormalities of brain structures have been associated with the disorder (Filipek, 1995). However, the etiology of individual differences in morphological brain measures has not been examined extensively. The purpose of this study was to apply behavioral genetic methods to assess the etiology of individual differences in neuroanatomical structures. Measures of reading performance, cognitive ability, and magnetic resonance imaging scans were obtained from 25 monozygotic (MZ) and 23 same-sex dizygotic (DZ) twin pairs with reading disability, and 9 MZ and 9 DZ control twin pairs participating in the Colorado Learning Disabilities Research Center. Results obtained from multiple regression analyses (DeFries & Fulker, 1985, 1988) of these twin data indicated that individual differences in the size of most cortical and subcortical structures were largely due to heritable influences. Moreover, estimates of heritability did not change appreciably after controlling for IQ and total brain size.

Does Rainbow Repeated Reading Add Value to an Intensive Literacy Intervention Program for Low-progress Readers? An experimental evaluation

Forty low-progress readers in Years 2 to 7 attending an intensive literacy intervention program, conducted on two separate sites, were randomly allocated to two treatment conditions in order to determine the effect of supplementing the program with commercially produced repeated reading materials (the Rainbow Reading Program). The control group experienced the regular form of the literacy program, which includes within it a form of repeated reading, while the experimental group experienced the supplemented literacy program incorporating repeated listening of tape-recorded versions of the text the student is required to read. All students were tested on two measures of reading performance immediately prior to and immediately following almost a term (9 weeks) of daily instruction. Analyses of covariance of post-test reading scores, in which pre-test scores were covaried, revealed no differences between the two groups on either of the two reading tests, indicating that the supplementary program did not demonstrate enhanced efficacy.

Repetition Effects From Paraphrased Text: Evidence for an Integrated Representation Model of Text Representation

The effect of text repetition on reading performance and memory was examined. Participants read a set of short passages, each twice in succession. The second reading was either the same text or a paraphrased version of the original text. Both same texts and paraphrased texts were read faster during the second reading, but the repetition effect was slightly smaller for paraphrased texts. This was reflected by changes in global measures of reading performance (e.g., reduced reading time) and by reduced fixation durations on individual words. The results are consistent with a model of text repetition effects in which wording is represented in an abstract, context-independent manner, whereas the situation described by the text is represented in an episodic, context-dependent manner

Etiology of covariation between reading and mathematics performance: a twin study.

The etiology of the observed relationship between reading and mathematics performance was examined by analyzing data from samples of same-sex twin pairs tested in the Colorado Learning Disabilities Research Center. Bivariate phenotypic and genetic structural equation models were fitted to data from 526 twin pairs selected for reading deficits (290 identical and 236 same-sex fraternal) and 355 control pairs (220 identical and 135 same-sex fraternal). Subtests of the Peabody Individual Achievement Test (PIAT; Reading Recognition, Reading Comprehension, and Spelling) were used as measures of reading performance, and scores from the Wechsler Intelligence Scale for Children-Revised (WISC-R) or Wechsler Adult Intelligence Scale-Revised (WAIS-R) Arithmetic subtest, the Wide Range Achievement Test Arithmetic subtest, and the PIAT Math subtest were used as indices for mathematics performance. The results of these confirmatory factor analyses indicate that genetic and environmental covariances between reading and math latent factors do not differ significantly for twin pairs in the proband and control groups. Estimates of heritability for reading performance in the proband and control samples were 0.81 and 0.69, respectively, and those for math performance were 0.88 and 0.67, respectively. Moreover, genetic influences accounted for 83% of the covariation between the reading and math factors in the proband group and for 58% of the covariation between these two latent variables in the control group; in contrast, shared environmental influences did not contribute significantly to the relationship between the reading and math latent factors nor to their independent variation.

Etiology of covariation between reading and mathematics performance: a twin study

AbstractThe etiology of the observed relationship between reading and mathematics performance was examined by analyzing data from samples of same-sex twin pairs tested in the Colorado Learning Disabilities Research Center. Bivariate phenotypic and genetic structural equation models were fitted to data from 526 twin pairs selected for reading deficits (290 identical and 236 same-sex fraternal) and 355 control pairs (220 identical and 135 same-sex fraternal). Subtests of the Peabody Individual Achievement Test (PIAT; Reading Recognition, Reading Comprehension, and Spelling) were used as measures of reading performance, and scores from the Wechsler Intelligence Scale for Children-Revised (WISC-R) or Wechsler Adult Intelligence Scale-Revised (WAIS-R) Arithmetic subtest, the Wide Range Achievement Test Arithmetic subtest, and the PIAT Math subtest were used as indices for mathematics performance. The results of these confirmatory factor analyses indicate that genetic and environmental covariances between reading and math latent factors do not differ significantly for twin pairs in the proband and control groups. Estimates of heritability for reading performance in the proband and control samples were 0.81 and 0.69, respectively, and those for math performance were 0.88 and 0.67, respectively. Moreover, genetic influences accounted for 83% of the covariation between the reading and math factors in the proband group and for 58% of the covariation between these two latent variables in the control group; in contrast, shared environmental influences did not contribute significantly to the relationship between the reading and math latent factors nor to their independent variation.

Towards a Curriculum‐based Passage Reading Test for Monitoring the Performance of Low‐progress Readers Using Standardised Passages: a validity study

Findings on the development of a curriculum‐based passage reading test using five standardised passages (the WARP) are provided, based on a validity study involving a sample of 50 primary school students. Performance on the five passages was compared with performance on two standardised tests of reading and a phonic word attack skills test, demonstrating good criterion validity with reading accuracy (0.83‐0.87), reading comprehension (0.67‐0.72) and word attack skills (0.75‐0.78). Intercorrelations between the five passages were shown to be very high (0.94‐0.96), demonstrating excellent alternate forms reliability. The WARP thereby demonstrates promise as a quick, cost‐effective measure of reading performance with the additional benefit of allowing regular tracking of performance over time.

Reading performance and general cognitive ability in twins with reading difficulties and control pairs

The etiology of the observed relationship between general cognitive ability and reading performance was investigated by analyzing data from samples of twin pairs tested in the Colorado Learning Disabilities Research Center. Bivariate phenotypic and genetic structural equation models were fitted to data from 486 twin pairs selected for reading deficits (276 identical and 210 same-sex fraternal) and 314 control pairs (195 identical and 119 same-sex fraternal). Subtests of the Peabody Individual Achievement test (Reading Recognition, Reading Comprehension, and Spelling) were used as measures of reading performance, and verbal and performance IQ scores from the Wechsler Intelligence Scale for Children-Revised (WISC-R) or Wechsler Adult Intelligence Scale-Revised (WAIS-R) were used as indices of general cognitive ability. The results of these confirmatory factor analyses indicate that shared environmental influences do not contribute significantly to covariation between general cognitive ability and reading performance. In contrast, genetic influences contribute substantially to the relationship between the two latent factors. Moreover, the genetic and phenotypic variances of reading performance in the proband group are larger than those in controls, whereas both the genetic and phenotypic correlations between reading performance and general cognitive ability are lower in probands. These results are consistent with recent reports that reading disability may be caused by one or more genes with major effects.