The importance of processing automaticity and temporary storage capacity to the differences in comprehension between skilled and less skilled college-age deaf readers

The prevalence of low comprehension among deaf readers has been documented for decades, yet the problem persists. Progress has been hampered by uncertainty regarding which aspects of reading competence ought to be the primary focus of concerted instructional efforts. This article examines whether temporary storage capacity and/or processing automaticity may explain the difference in comprehension between skilled and less skilled adult deaf readers. Temporary storage capacity is the ability to maintain separate bits of information in current memory while they are being processed. Processing automaticity is the ability to complete certain basic operations of reading, such as recognizing individual words and chunking sets of words into meaningful phrases, with a minimum of intentional mental effort. In this study one group of deaf adults reading at the college level and another reading at the 5th-grade level completed a battery of experimental tasks that generated multiple indicators of storage capacity and automaticity. These included the reading span task of Daneman and Carpenter (1980), an analogous addition span task, two measures of phonological processing, and a sentence-reading task that varied the demands on temporary storage and processing automaticity. Results suggest that skilled readers do not command an exceptionally large temporary storage capacity, nor do less skilled readers suffer from deficient storage capacity. The indicators of processing automaticity suggest, however, that less skilled readers must invest significantly more conscious mental effort than skilled readers to complete basic operations of reading. These findings are applied to theory related to (a) the nature of the breakdowns in comprehension faced by readers with low automaticity, (b) the interaction of low automaticity with other obstacles to comprehension, and (c) the design of practice experiences to increase the automaticity and ultimately the comprehension of deaf readers.     

Strategy usage among deaf and hearing readers

High school youths who were prelingually and profoundly deaf, hearing elementary-school-age youths, and hearing reading-disabled high school youths read expository texts and filled in deleted words and phrases. After making word replacements, they explained their decisions in sign or verbally. As expected, the hearing youths had an easier time filling in the deleted portions and explaining what strategies they were using. While the deaf youths reported using similar strategies as the hearing youths, the frequency of each type of strategy differed. Deaf readers more often relied on rereading and background knowledge, while the hearing readers made greater use of context clues. The results suggest that instruction for deaf readers should include more effective comprehension strategies.     

Identification of vowel speech sounds by skilled and less skilled readers and the relation with vowel spelling

Reading and spelling errors of vowels are reported in many studies (Bryson and Werker 1989; Fowler, Liberman, and Shankweiler 1977; Fowler, Shankweiler, and Liberman 1979; Goswami 1993; Landerl, Wimmer, and Frith 1997; Shankweiler and Liberman 1972). The present study tested the hypothesis that spelling errors involving vowels are linked to difficulties in vowel perception. Second to fourth graders (total n=155) were divided into five groups according to reading skill and were tested on a variety of measures involving vowel identification, vowel discrimination, and vowel spelling. Despite little difficulty on the vowel discrimination tasks, participants made many errors on the vowel identification measures. Vowel identification errors were linearly associated with reading skill with least skilled readers having significantly more difficulty with stressed “short” vowels as in dip than with stressed “long” vowels as in deep, presented in identical contexts. Vowel identification errors were also associated with vowel spelling errors. It is hypothesized that errors in vowel spelling may relate to weak access to the phoneme at the oral language level and may indicate a lack of constancy in the representation of vowels by less skilled readers. Weaknesses in vowel perception can be detected with a simple vowel identification test in which phonological similarity of test items is used as linguistic manipulation, and where phonemes must be identified based on presentation of a single test item in a forced choice format.     

Working memory capacity and comprehension processes in deaf readers

This research studied deaf students' performance on memory span and component reading tasks that incorporated processes involved in higher level comprehension. The instruments developed in the study provide the basis for the measurement of functional working memory capacity, vocabulary knowledge, domain-relevant knowledge, and inference abilities. Multiple regression analysis was used to construct models that show the contributions of the independent assessments to reading comprehension ability. Overall results suggest that working memory operates as a general executive system, as indicated by significant correlations between subjects' performance on reading and nonreading tasks. Limitations in vocabulary knowledge continue to pose problems in reading for deaf individuals. General or procedural knowledge also plays a part in reading comprehension processes.     

Longitudinal patterns of emerging literacy in beginning deaf and hearing readers

The emerging reading and spelling abilities of 24 deaf and 23 hearing beginning readers were followed over 2 years. The deaf children varied in their language backgrounds and preferred mode of communication. All children were given a range of literacy, cognitive and language-based tasks every 12 months. Deaf and hearing children made similar progress in literacy in the beginning stages of reading development and then their trajectories began to diverge. The longitudinal correlates of beginning reading in the deaf children were earlier vocabulary, letter-sound knowledge, and speechreading. Earlier phonological awareness was not a longitudinal correlate of reading ability once earlier reading levels were controlled. Only letter name knowledge was longitudinally related to spelling ability. Speechreading was also a strong longitudinal correlate of reading and spelling in the hearing children. The findings suggested that deaf and hearing children utilize slightly different reading strategies over the first 2 years of schooling.     

Effects of two types of letter rehearsal on word memory in skilled and less skilled beginning readers

Skilled and less skilled beginning readers were taught to read and define 10 printed pseudowords. Then they rehearsed the spellings of the words in one of two ways. Experimental subjects performed activities to retain spellings in memory as orthographic images. Control subjects rehearsed the letters similarly but with the correct spellings in view. Post-tests revealed that experimentals remembered spellings better than controls. This indicates that the activity of committing letters to memory is better for learning spellings than copying letters which is what most spelling programs have learners do. Experimental subjects' superior knowledge of spellings, however, did not enable them to read the words faster or more accurately than controls, possibly because of overlearning. Comparison of good and poor readers' word-learning behavior revealed greater deficiencies in phonological than in semantic processes. Correlational analysis indicated that background skills are much more powerful than specific learning experiences in accounting for individual differences in reading and spelling performances.     

The use of cumulative cloze to investigate contextual build-up in deaf and hearing readers

This study finds no significant differences between deaf and hearing readers' sensitivity to contextual build-up as evaluated in a cumulative cloze exercise measured by a 2 X 5 X 2 factorial design using readers at the eighth, tenth and twelfth grade levels. Differences favoring hearing readers have been documented at the fourth and sixth grade levels. Results from the current study and its antecedents indicate that readers in both groups predict meaning more accurately when given passage-level rather than sentence-level contextual constraints. Additionally, both groups predict meaning more accurately and their predictions become more semantically and grammatically acceptable as the amount of contextual information increases. Deaf readers, however, tend to abandon correct choices more often than do hearing readers.     

Social processes and outcomes of in-school contact between deaf and hearing peers

Studies of social processes and outcomes of the placement of deaf students with hearing peers cannot be easily summarized, but can be grouped into a least four major categories of focus: social skills, interaction and participation, sociometric status and acceptance, and affective functioning. We review 33 studies available since 1980 in which a mainstreamed or included deaf sample was compared to another group. Studies indicated (1) that hearing students were more socially mature than deaf students in public schools, (2) that deaf students interacted with deaf classmates more than hearing ones, (3) that deaf students were somewhat accepted by their hearing classmates, and (4) that self-esteem was not related to extent of mainstreaming. There was a tendency for studies to use observational methods with very young children, teacher evaluations with middle school children, and questionnaires with older children. Three major areas of methodology limit general conclusions: samples, measurements of variables, and experimental manipulations. The reviewed studies provide a basis for understanding the social processes and outcomes in these placement situations; however, it is not possible to make broad generalizations about effects of placement.     

Cognitive processes separating good and poor readers when IQ is covaried

In this paper we address the issue of separating reading disability from general intelligence in order to identify those cognitive processes which discriminate between poor and good readers when intelligence is covaried. Subjects were 140 Grade 5 and 6 students who were administered Lorge-Thorndike intelligence test (1964), a reading decoding test and cognitive tests which measure planning, attention-arousal and simultaneous-successive processing. The tests which emerged as discriminators between good and poor readers when Lorge-Thorndike full scale IQ was covaried, were three measures of successive processing (Sequence Repetition, Naming Time, Speech Rate) and a measure of selective attention, the familiar Stroop Color-Word test. Subsequently, a comparison of reading disabled high and low average IQ children confirmed that the four tests were performed poorly by both groups. All four tests involve the use of articulatory representation, confirming the important role speech-related processes play in reading (decoding). The results support the notion that deficient speech-related processes may be the central problem of the majority of poor readers, especially those of above-average intelligence. Future directions for research on phonological coding and articulation were suggested.     

Considerations for designing practice for deaf readers

Low reading comprehension persists among deaf readers, and recent research indicates that low automaticity in recognizing words and parsing sentence patterns is a significant source of the difficulty. When a learner does manage to gain an insight about some aspect of printed English, there may be limited impact on comprehension until the new knowledge can be applied fluently because the multiple cognitive demands of reading call for completing basic linguistic operations with a minimum of conscious effort. The research literature agrees that the route to improved automaticity is effective practice, and, thus, practice is also a likely route to increased comprehension. This article presents considerations to guide the design of practice for deaf readers. Certain of these notions are relatively applied in nature and may shape practice activities directly, for example, the discussion of research-based guidelines for tailoring the sequence and composition of practice items. Other parts of the discussion, such as those related to word recognition, are more theoretical than directive, and they imply research hypotheses that can and should be tested empirically. A principal point of this article is that without appreciable improvements in practice, the reading of many deaf students will remain largely unimproved.     

Comparing motor development of deaf children of deaf parents and deaf children of hearing parents

Deaf children of Deaf parents perform better academically (Ritter-Brinton & Stewart, 1992), linguistically (Courtin, 2000; M. Harris, 2001; Vaccari & Marschark, 1997), and socially (Hadadian & Rose, 1991; M. Harris, 2001) than Deaf children of hearing parents. Twenty-nine Deaf children in residential schools were assessed to determine if a significant difference also exists in motor development between Deaf children with Deaf parents and Deaf children with hearing parents. In the locomotor area, 78.6% of Deaf children of Deaf parents and 73.3% of Deaf children of hearing parents reached or surpassed average performance levels. In regard to object control, 92.9% of Deaf children of Deaf parents and 93.3% of Deaf children of hearing parents reached or surpassed average performance levels. The study results show no significant difference between the motor development of Deaf children of Deaf parents and Deaf children of hearing parents.     

Patterns of word and nonword processing in skilled and less-skilled readers

Sixty-eight third graders who were less-skilled readers performed more poorly than younger reading-level control children on tests of pseudoword reading and phonological sensitivity. These findings add to the growing consensus that the proximal cause of reading difficulties are spelling-sound coding problems that result from deficient underlying phonological processes and structures. Analyses of their word and pseudoword reading performance provided some suggestive evidence that less-skilled readers are less sensitive than their younger reading-level matched counterparts to all subword-size orthographic units, perhaps especially to grapheme-sized units.     

Comparing practical knowledge storage of deaf and hearing teachers of students who are deaf or hard of hearing

Especially in the education of students who are deaf or hard of hearing, teachers' practical knowledge storage is almost never measured. The Survey of Practical Knowledge was used to compare the practical knowledge storage of deaf and hearing teachers of these students. Surveyed were 48 deaf and 115 hearing individuals at the preservice and in-service experience levels. Practical knowledge storage was defined as images, rules of practice, and practical principles. Results indicate that deaf teachers tend to view students as equals but are more likely to emphasize control over classroom behavior than hearing teachers. Hearing teachers tend to stress efforts to engage students in subject matter by providing variety and relating it to life experiences. Given the trend toward high-stakes testing of teachers, further research is encouraged on role differences between deaf and hearing teachers working with students who are deaf or hard of hearing.     

Phonological sensitivity in severely and profoundly deaf readers of French

In order to become expert readers of an alphabetical language like French, students must develop and adequately use phonological knowledge. Considering that the phonological knowledge used in reading largely comes from knowledge of the oral language, what happens when the oral language is not accessible, as is the case for many deaf children? In this study, graphophonemic and syllabic processes in pseudoword reading were assessed with a similarity judgment task. Gestual deaf subjects aged 10–18 years old (N = 24) were compared to 24 age-matched hearing subjects. The results show that deaf readers are less sensitive to the graphemic and the syllabic structures of pseudo-words than hearing readers. In deaf subjects, the results are different than chance-level in the 13–15 and the 16–18-year-old groups. These results indicate that gestual deaf readers can develop phonological knowledge even in settings where sign language is promoted.     

Processing of anaphoric devices in young skilled and less skilled comprehenders: Differences in metacognitive monitoring

This experiment investigated metacognitive monitoring in the processing of anaphors in 10–year-old skilled and less skilled comprehenders. Two tasks were used with expository texts. The direct self-evaluation task was carried out with consistent texts in which target anaphors were either repeated noun phrases or pronouns. Subjects had to read and to evaluate their own comprehension on a 6–point scale. After reading, subjects answered multiple-choice questions designed to test the processing of anaphors. In the inconsistency detection task, target anaphors were either repeated noun phrases or inconsistent noun phrases. Subjects had to read and detect inconsistencies. After reading, they answered multiple-choice questions. In both tasks, on-line measures (reading times for units containing target anaphors and for subsequent units, and look-backs) were collected in addition to off-line measures (ratings of comprehension, detection of inconsistencies and response to multiple-choice questions) in order to analyse indicators of implicit and explicit evaluation and revision activities. The results from the two tasks converged: less skilled comprehenders showed deficiencies in monitoring on measures of implicit and explicit evaluation and revision. Patterns of reading times revealed that less skilled comprehenders were sensitive to the difficulties in processing pronouns in the self-evaluation task and also sensitive to the lack of text cohesion in the inconsistency detection task. However, this sensitivity was weak and unable to trigger explicit activities. These results were interpreted in the framework of Karmiloff-Smith's (1986) model.