Tag Archive for 'literacy'

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Genetics and teaching effects

Although genetic factors make substantial contributions to reading performance, it is important not to overlook the contribtutions of teaching and the interplay between genetics and teaching, according to Jeannette Taylor and colleagues from Florida State University (Tallahassee, FL, US). Professor Taylor and the research team with which she’s affiliated used the oral reading fluency (ORF; simply words per minute) of twins’ (280 monzygotic and 526 dizygotic) classmates as a proxy for teacher quality, and the found that when twins were in classrooms where their peers were making lots of progress, the effects of genetic factors became more obvious: “Genetic variance in ORF was greater at higher levels of teacher quality.”

The bad news is that the reverse is true, too. Poor teaching, to the extent that it’s measured by gain in ORF, decreased the effects of genetics on reading growth.

Children’s reading achievement is influenced by genetics as well as by family and school environments. The importance of teacher quality as a specific school environmental influence on reading achievement is unknown. We studied first- and second-grade students in Florida from schools representing diverse environments. Comparison of monozygotic and dizygotic twins, differentiating genetic similarities of 100% and 50%, provided an estimate of genetic variance in reading achievement. Teacher quality was measured by how much reading gain the non-twin classmates achieved. The magnitude of genetic variance associated with twins’ oral reading fluency increased as the quality of their teacher increased. In circumstances where the teachers are all excellent, the variability in student reading achievement may appear to be largely due to genetics. However, poor teaching impedes the ability of children to reach their potential.

This is an especially interesting finding in light of the recent report, as noted over on LD Blog, that among twins with high IQs, the genetic contribution to reading is also more salient.

Taylor, J., Roehrig, A. D., Hensler, B. S., & Schatschneider, C. (2010). Teacher quality moderates the genetic effects on early reading. Science, 328, 512-514.

Link to “Teacher quality moderates the genetic effects on early reading.” It appears to me that this article is available to the general public. Note that there is also an interview with Professor Taylor; the narrator puts the point about teacher quality right squarely in front of the listener.

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Read the Rose Report on reading

Those readers from the UK are almost surely familiar with the “Rose Report,” but readers in other parts of the world may not know about it. Identifying and Teaching Children and Young People with Dyslexia and Literacy Difficulties: An independent report from Sir Jim Rose to the Secretary of State for Children, Schools and Families was published in June 2009 and is available for free.

Overall, this the Rose Report presents a clear, sensible, and valuable understanding of reading problems and dyslexia, including many valuable recommendations for instruction. It is not perfect, to be sure. For example, there is a strong endorsement of Reading Recovery, which I find unwarrented given its record and costs. Still, a well-informed reader will find much to like in this document.
Continue reading ‘Read the Rose Report on reading’

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Some not-helpful fluency strategies

Over on CDL there’s a brief explanation about why round-robin reading and silent reading are not effective methods for improving fluency in reading. It’s a summary by Jan Hasbrouck, a consultant who has done a fair bit of work in the area of special education, assessment (e.g., progress monitoring measures), reading, and related aspects of education. The PDF has been available for a while, but it’s worth snagging if you’ve not already found it.

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Differential effects in early reading instruction

In an article entitled “The Relation Between the Type and Amount of Instruction and Growth in Children’s Reading Competencies” that is slated to appear in American Educational Research Journal, Susan Sonnenschein and colleagues reported that kindergartners who enter school with relatively higher competence in literacy benefit more from instruction that emphasizes extracting meaning from what they read but their counterparts who enter kindergarten with lower literacy competence benefit more from instruction that emphasizes decoding. As children progress through the elementary grades, however, the effects of different instructional emphases lessen.

Although this difference obtained even after the research team took into account other factors (child ethnicity, parents’ education levels), these other factors have clear effects on children’s literacy development. African-American children, even those who were reading above average at the end of kindergarten, lost ground compared to their White, non-Hispanic peers in the third and fifth grades. Also, although there were not direct effects for the educational backgrounds of the teachers (number of reading courses teachers reported having taken), third-grade teachers’ background in reading influenced the amount of time they spent on reading.

Sonnenschein and colleagues examined data for over 6000 children, making these findings relatively solid. They argue that their results indicate that teachers may not adapt instruction to fit learners’ level of literacy competence.

However, these results will probably come as little or no surprise to many people. First, we already had a plenty of evidence that (a) high-performers are likely to continue to outperform low-performers over time (“thems that’s gots gets”) and (b) ethnicity matters in reading outcomes. Because we hope that educators adapt instruction to learners’ levels of development, the conclusion that teachers may not be doing so should be moot; however, such a judgment is based on educators’ hopes, and those can easily be dashed.

A latent growth model was used to investigate the longer term efficacy of phonics and integrated language arts instruction as well as amount of such instruction on children’s reading development, using the nationally representative Early Childhood Longitudinal Study data set (kindergarten through fifth grade). Type and amount of instruction were derived from teachers’ ratings. Children’s entry-level skills and ethnicity were predictors of children’s reading scores at the end of kindergarten. Ethnicity and parents’ education level predicted rate of growth. Type and amount of reading instruction predicted children’s reading scores. However, effects for type of instruction were time-sensitive, occurring only in kindergarten and first grade. Although children benefit from instruction in decoding and comprehension skills, instruction may not be optimally tailored to children most at risk.

Sonnenschein, S., Stapleton, L. M., & Benson, A. (2009). The relation between the type and amount of instruction and growth in children’s reading competencies. American Educational Research Journal. Advance online publication. doi: 10.3102/0002831209349215

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Ohio IDA: “Imagine, Every Child Reading!”

The The Central Ohio Branch of the International Dyslexia Association will hold a conference 16 October 2009 under the theme, “Imagine, Every Child Reading,” according to Mary Damer, a member of the organization’s board. She told me about some of the highlights of the conference:

Keynote Speaker in the Morning is Louisa Moats “Science, Language, and Imagination in Teaching Students at Risk for Reading Failure”

The unique properties of English; the inability of many readers to intuit language structure; and the insufficiencies of many instructional programs and practices, all point to the critical role of informed, skilled, flexible teachers who base their instruction on content knowledge and reliable scientific research .
Continue reading ‘Ohio IDA: “Imagine, Every Child Reading!”’

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Engelmann explains

Zig Engelmann, progenitor of Direct Instruction (DI), has posted a video of a talk he gave earlier this month. The presentation is an explication of the underlying principles of DI, “Theory of Direct Instruction.”

In the presentation (video below the jump), Mr. Engelmann shows some of his chops from his undergraduate degree in philosophy. He starts with philosophers’ fundamental arguments and shows how those correspond (or don’t) with learning and teaching concepts. For example, as he works through John Stuart Mills’ five methods of induction from A System of Logic, he makes clear how each would apply to teaching. I suspect that this particular sequence will show many people why DI instruction (the examples used in the scripts, not the teaching behavior) is structured the way it is.
Continue reading ‘Engelmann explains’

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Prog mon on RR

Over on Reading Rockets, friend-of-TE Joanne has a quick reminder of the importance of monitoring student progress as a part of response-to-instruction efforts and pointers to helpful resources. Read the post here.

Hmmmm….friend-of-TE: FoTE?

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BEE on struggling readers

Under the auspices of the Best Evidence Encyclopedia, Bob Slavin and colleagues Cynthia Lake, Susan Davis, and Nancy Madden released an analysis of the research literature on methods for teaching students who are struggling to learn to read, “Effective Programs for Struggling Readers: A Best-Evidence Synthesis.” In the synthesis they report the results of their examination of nearly 100 studies that used randomized or well-matched control groups, lasted for at least 12 weeks, and employed trustworthy measures of outcomes. The results of their review, which include both effect sizes and narrative descriptions of the studies, provide valuable insight into effective methods for remediating reading problems.

Key Findings

Overall, 96 experimental-control comparisons met the inclusion criteria, of which 38 used random assignment to treatments. Effect sizes (experimental-control differences as a proportion of a standard deviation) were averaged across studies, weighting by sample size.

One-to-One Tutoring by Teachers: ES=+0.38 in 19 studies
• Reading Recovery: ES=+0.23 in 8 studies
• Other programs: ES=+0.60 in 11 studies

One-to-One Tutoring by Paraprofessionals and Volunteers: ES=+0.24 in 18 studies
• Paraprofessionals: ES=+0.38 in 11 studies
• Volunteers: ES=+0.16 in 7 studies

Small Group Tutorials: ES=+0.38 in 11 studies

Classroom Instructional Process Approaches (low achievers): ES=+0.56 in 16 studies
• Cooperative Learning: ES=+0.58 in 8 studies

Classroom Instructional Process Programs with Tutoring (Success for All, low achievers): ES=+0.55 in 9 studies

Instructional Technology (low achievers): ES=+0.09 in 14 studies

Salvin, R. E., Lake, C., Davis, S., & Madden, N. A. (2009). Effective programs for stuggling readings: A best-evidence synthsis. Best Evidence Encyclopedia: http://www.bestevidence.org/reading/strug/strug_read.htm

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