How strong and weak readers perform on the Developmental Eye Movement test (DEM): norms for Latvian school-aged children
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Abstract
The aim of our study was to determine DEM test performance norms for school-aged children in Latvia, assess how DEM test results correlate with children’s reading rates, compare test performance between strong and weak readers. A modified DEM test and a newly developed reading test were administered to 1487 children during a screening survey. Our study provides norms for adjusted DEM scores for children from 7 to 18 years of age. A high correlation exists between a child’s reading rate and her DEM speed scores for both parts of the test. Weak readers performed significantly more slowly on the DEM test than strong readers. Overall, 6 % of the subject population scored 1 standard deviation below the mean value on both the DEM and reading tests. We conclude that these individuals may be at a higher risk for developing reading impairments.
Keywords
School-aged children Development Eye Movement test Reading rateNotes
Acknowledgments
The work represented in this article is a part of a large research project (“The study of vision and visual perception disorders in school-age children: development of diagnostic methods”, Department of Optometry and Vision science, Latvia) including a representative screening survey for school-age children (project and all authors are supported by ERDF No. 2011/0004/2DP/2.1.1.1.0/10/APIA/VIAA/027).
References
- Ayton, L. N., Abel, L. A., Fricke, T. R., & McBrien, N. A. (2009). Developmental Eye Movement test: What is it really measuring? Optometry and Vision Sciene, 86(6), 722–730.CrossRefGoogle Scholar
- Baptista, A. M., de Sousa, R. A., de Morais Guerra Casal, C. C., Marques, R. J., & da Silva, C. M. (2011). Norms for the Developmental Eye Movement test for Portuguese children. Optometry and Vision Science, 88(7), 864–871.CrossRefGoogle Scholar
- Blythe, H. I., & Joseph, H. S. (2011). Children’s eye movements during reading. In S. P. Liversedge, I. D. Gilchrist, & S. Everling (Eds.), Oxford handbook on eye movements (pp. 643–662). Oxford: Oxford University Press.Google Scholar
- De Luca, M., Di Pace, E., Judica, A., Spinelli, D., & Zoccolotti, P. (1999). Eye movement patterns in linguistic and non-linguistic tasks in developmental surface dyslexia. Neuropsychologia, 37(12), 1407–1420.CrossRefGoogle Scholar
- Eden, G. F., Stein, J. F., Wood, H. M., & Wood, F. B. (1994). Differences in eye movements and reading problems in dyslexic and normal children. Vision Research, 34(10), 1345–1358.CrossRefGoogle Scholar
- Facchin, A., Maffioletti, S., & Carnevali, T. (2012). The Development Eye Movement (DEM) test: Normative data for Italian population. Optometry and Vision Development, 43(4), 162–179.Google Scholar
- Fernandez-Velazques, F. J., & Fernandez-Fidalgo, M. J. (1995). Do DEM test scores change with respect to the language? Norms for Spanish-speaking population. Optometry and Vision Science, 72(12), 902–906.CrossRefGoogle Scholar
- Gary, L., & Vogel, O. D. (1995). Saccadic eye movements: Theory, testing and therapy. Journal of Behavioral Optometry, 6(1), 3–12.Google Scholar
- Garzia, R. P., Richman, J. E., Nicholson, S. B., & Gaines, C. S. (1990). A new visual–verbal saccade test: The Developmental Eye Movement test (DEM). Journal of the American Optometrict Association, 61(2), 124–135.Google Scholar
- Hyönä, J. (2011). Foveal and parafoveal processing during reading. In S. P. Liversedge, I. D. Gilchrist, & S. Everling (Eds.), Oxford handbook on eye movements (pp. 819–838). Oxford: Oxford University Press.Google Scholar
- Juhasz, B. J., & Pollatsek, A. (2011). Lexical influences on eye movements in reading. In S. P. Liversedge, I. D. Gilchrist, & S. Everling (Eds.), Oxford handbook on eye movements (pp. 873–893). Oxford: Oxford University Press.Google Scholar
- Lowther, A. H., Rainey, B. B., Gross, D., Kidd, G. R., Swartz, T., & Horner, D. (2001). The Developmental Eye Movement test as a predictor of word recognition ability. Journal of Optometric Vision Development, 32, 9–14.Google Scholar
- Medland, C., Walter, H., & Woodhouse, J. M. (2010). Eye movements and poor reading: Does the Developmental Eye Movement test measure cause or effect? Ophthalmic and Physiological Optics, 30, 740–747.CrossRefGoogle Scholar
- Muzaliha, M., Nurhamiza, B., Hussein, A., Norabibas, A. R., Mohd-Hisham-Basrun, J., Sarimah, A., & Shatriah, I. (2012). Visual acuity and visual skills in Malaysian children with learning disabilities. Clinical Ophthalmology, 6, 1527–1533.Google Scholar
- Nicolson, R. I., & Fawcett, A. J. (2010). Dyslexia, learning, and the brain. Cambridge, MA: MIT Press.Google Scholar
- Northway, N. (2003). Predicting the continued use of overlays in school children—A comparison of the Developmental Eye Movement test and the rate of reading test. Ophthalmic and Physiological Optics, 23(5), 457–464.CrossRefGoogle Scholar
- Olson, R. K., Klieg, R., & Davidson, B. J. (1983). Dyslexic and normal readers’ eye movements. Journal of Experimental Psychology: Human Perception and Performance, 9(5), 816–825.Google Scholar
- Orlansky, G., Hopkins, K. B., Mitchell, G. L., Huang, K., Fraizier, M., Heyman, C., & Scheiman, M. (2011). Reliability of the Developmental Eye Movement test. Optometry and Vision Science, 88(12), 1507–1519.Google Scholar
- Palomo-Alvarez, C., & Puell, M. C. (2009). Relationship between oculomotor scanning determined by the DEM test and a contextual reading test in schoolchildren with reading difficulties. Graefe’s Archive for Clinical and Experimental Ophthalmology, 247(9), 1243–1249.CrossRefGoogle Scholar
- Pang, P. C., Lam, C. S., & Woo, C. S. (2010). The Developmental Eye Movement (DEM) test and Cantonese-speaking children in Hong Kong SAR, China. Clinical and Experimental Optometry, 93(4), 213–223.CrossRefGoogle Scholar
- Pavlidis, G. T. (1981). Do eye movements hold the key to dyslexia? Neuropsychologia, 19, 57–64.CrossRefGoogle Scholar
- Pollatsek, A., & Rayner, K. (2005). Reading. In K. Lamberts & R. L. Goldstone (Eds.), Handbook of cognition (pp. 276–293). London: Sage.Google Scholar
- Powell, J. M., Fan, M. Y., Kiltz, P. J., Bergman, A. T., & Richman, J. (2006). A comparision of the Developmental Eye Movement test (DEM) and a modified version of the Adult Developmental Eye Movement test (A-DEM) with older adults. Journal of Behavioral Optmetry, 17(3), 59–64.Google Scholar
- Powers, M., Grisham, D., & Riles, P. (2008). Saccadic tracking skills of poor readers in high school. Optometry, 79(5), 228–234.CrossRefGoogle Scholar
- Prado, C., Dubois, M., & Valdois, S. (2007). The eye movements of dyslexic children during reading and visual search: Impact of the visual attention span. Vision Research, 47(19), 2521–2530.CrossRefGoogle Scholar
- Rayner, K. (1985). The role of eye movements in learning to read and reading disability. Remedial and Special Education, 6(6), 53–66.CrossRefGoogle Scholar
- Rayner, K. (1998). Eye movements in reading and information processing: 20 years of research. Psychological Bulletin, 124(3), 372–422.CrossRefGoogle Scholar
- Rayner, K. (2009). Eye movements and attention in reading, scene perception. The Quarterly Journal of Experimental Psychology and Visual Search, 62(8), 1457–1506.CrossRefGoogle Scholar
- Rayner, K., & Liversedge, S. P. (2011). Linguistic and cognitive influences on eye movements during reading. In S. P. Liversedge, I. D. Gilchrist, & S. Everling (Eds.), Oxford handbook on eye movements (pp. 751–766). Oxford: Oxford University Press.Google Scholar
- Rouse, W. M., Nestor, E. M., Parot, C. J., & DeLand, P. N. (2004). A reevaluation of the Developmental Eye Movement (DEM) test’s repeatability. Optometry and Vision Science, 81(12), 934–938.Google Scholar
- Rutter, M., Caspi, A., Fergusson, D., Horwood, I. J., & Goodman, R. (2004). Sex differences in developmental reading disability. New findings from 4 epidemiological studies. JAMA, 291(16), 2007–2012.CrossRefGoogle Scholar
- Sampedro, A. G., Richman, J. E., & Pardo, M. (2003). The adult Developmental Eye Movement test (A-DEM): A tool for saccadic evaluation in adults. Journal of Behavioral Optometry, 144(4), 101–105.Google Scholar
- Shaywitz, S. E., Escobar, M. D., Shaywitz, B. A., Fletcher, J. M., & Makuch, R. (1992). Evidence that dyslexia may represent the lower tail of a normal distribution of reading ability. New England Journal of Medicine, 326(3), 145–150.CrossRefGoogle Scholar
- Tassinari, J. T. (2008). Assessing the assessment: Learning related vision problems test scores revisited. Optometry & Vision Development, 39(3), 128–139.Google Scholar
- Tassinari, J. T., & DeLand, P. (2005). Developmental Eye Movement test: Reliability and symptomatology. Optometry, 76(5), 387–399.CrossRefGoogle Scholar
- Thaler, V., Urton, K., Heine, A., Hawelka, S., Engl, V., & Jacobs, A. M. (2009). Different behavioral and eye movement patterns of dyslexic readers with and without attentional deficits during single word reading. Neuropsychologia, 47(12), 2436–2445.CrossRefGoogle Scholar
- Tinker, M. A. (1958). Recent studies of eye movements in reading. Psychological Bulletin, 55(4), 215–231.CrossRefGoogle Scholar
- Webber, A., Wood, J., Gole, G., & Brown, B. (2011). DEM test, visagraph eye movement recordings, and reading ability in children. Optometry and Vision Science, 88(2), 295–302.CrossRefGoogle Scholar
- Xie, Y., Sci, C., Tong, M., Zhang, M., Li, T., & Xu, Y. (2016). Developmental Eye Movement (DEM) test norms for Mandarin Chinese-speaking Chinese children. PLoS One, 11(2), e0148481. doi: 10.1371/journal.pone.0148481.pmid:26881754.CrossRefGoogle Scholar
- Ziegler, J. C., Castel, C., Pech-Georgel, C., George, F., Alario, F., & Perry, C. (2008). Developmental dyslexia and the dual route model of reading: Simulating individual differences and subtypes. Cognition, 107(1), 151–178.CrossRefGoogle Scholar