American Sign Language/English bilingual model: a longitudinal study of academic growth

Challenging the "norm": a critical look at deaf-hearing comparison studies in research

This study critically examines the biases and methodological shortcomings in studies comparing deaf and hearing populations, demonstrating their implications for both the reliability and ethics of research in deaf education. Upon reviewing the 20 most-cited deaf-hearing comparison studies, we identified recurring fallacies such as the presumption of hearing ideological biases, the use of heterogeneously small samples, and the misinterpretation of critical variables. Our research reveals a propensity to based conclusions based on the norms of white, hearing, monolingual English speakers. This dependence upholds eugenics ideas and scientific ableism, which reinforces current power dynamics that marginalize the epistemologies and lived experiences of deaf populations. Going forward, it will be imperative for deaf people to be included in meaningful roles in deaf-related research as active contributors who help define the whole research process. Without this shift, the research risks remaining detached from the very populations it seeks to understand.

Does early exposure to spoken and sign language affect reading fluency in deaf and hard-of-hearing adult signers?

Introduction

Early linguistic background, and in particular, access to language, lays the foundation of future reading skills in deaf and hard-of-hearing signers. The current study aims to estimate the impact of two factors - early access to sign and/or spoken language - on reading fluency in deaf and hard-of-hearing adult Russian Sign Language speakers.

Methods

In the eye-tracking experiment, 26 deaf and 14 hard-of-hearing native Russian Sign Language speakers read 144 sentences from the Russian Sentence Corpus. Analysis of global eye-movement trajectories (scanpaths) was used to identify clusters of typical reading trajectories. The role of early access to sign and spoken language as well as vocabulary size as predictors of the more fluent reading pattern was tested.

Results

Hard-of-hearing signers with early access to sign language read more fluently than those who were exposed to sign language later in life or deaf signers without access to speech sounds. No association between early access to spoken language and reading fluency was found.

Discussion

Our results suggest a unique advantage for the hard-of-hearing individuals from having early access to both sign and spoken language and support the existing claims that early exposure to sign language is beneficial not only for deaf but also for hard-of-hearing children.

Four American Sign Language Learner Groups: Are They Really Different?

We investigated the receptive American Sign Language (ASL) skills of four separate groups using the 42-item ASL-Receptive Skills Test: Deaf high school-aged students who attended a residential school; deaf incoming college students who preferred signed language; deaf incoming college students who preferred spoken language; and typically hearing college-aged second language-second modality learners (M2L2) of ASL. Many deaf students learn ASL as a delayed first language due to a lack of sign language models within their home environments. In contrast, M2L2 students likely engage in some transfer between their first (spoken) and second (signed) language when learning ASL. All four groups scored similarly overall on the ASL-RST (~77% correct), and all four groups scored the lowest for number-distribution, spatial verbs location, size-and-shape-specifiers, and role shift. We present instructional implications that include incorporation of ASL standards and evidence-based instructional strategies for all four groups.

Number Stroop Effects in Arabic Digits and ASL Number Signs: The Impact of Age and Setting of Language Acquisition

Multiple studies have reported mathematics underachievement for students who are deaf, but the onset, scope, and causes of this phenomenon remain understudied. Early language deprivation might be one factor influencing the acquisition of numbers. In this study, we investigated a basic and fundamental mathematical skill, automatic magnitude processing, in two formats (Arabic digits and American Sign Language number signs) and the influence of age of first language exposure on both formats by using two versions of the Number Stroop Test. We compared the performance of individuals born deaf who experienced early language deprivation to that of individuals born deaf who experienced sign language in early life and hearing second language learners of ASL. In both formats of magnitude representation, late first language learners demonstrated overall slower reaction times. They were also less accurate on incongruent trials but performed no differently from early signers and second language learners on other trials. When magnitude was represented by Arabic digits, late first language learners exhibited robust Number Stroop Effects, suggesting automatic magnitude processing, but they also demonstrated a large speed difference between size and number judgments not observed in the other groups. In a task with ASL number signs, the Number Stroop Effect was not found in any group, suggesting that magnitude representation might be format-specific, in line with the results from several other languages. Late first language learners also demonstrate unusual patterns of slower reaction time for neutral rather than incongruent stimuli. Together, the results show that early language deprivation affects the ability to automatically judge quantities expressed both linguistically and by Arabic digits, but that it can be acquired later in life when language is available. Contrary to previous studies that find differences in speed of number processing between deaf and hearing participants, we find that when language is acquired early in life, deaf signers perform identically to hearing participants.

Deaf Children's ASL Vocabulary and ASL Syntax Knowledge Supports English Knowledge

The current study contributes empirical data to our understanding of how knowledge of American Sign Language (ASL) syntax aids reading print English for deaf children who are bilingual and bimodal in ASL and English print. The first analysis, a conceptual replication of Hoffmeister ( 2000), showed that performance on the American Sign Language Assessment Instrument correlated with the Sanford Achievement Test-Reading Comprehension (SAT-RC) and the Rhode Island Test of Language Structures (RITLS, Engen & Engen, 1983). The second analysis was a quantile regression using ASL assessments to predict English print abilities. Different ASL skills were important for English reading comprehension (SAT-RC) versus understanding English syntax (RITLS); the relationship between ASL skills and English print performance also varied for students at different English print ability levels. Strikingly, knowledge of ASL syntax was robustly correlated with knowledge of English syntax at all ability levels. Our findings provide novel and strong evidence for the impact of ASL on the development of English literacy.

Numerical and Real-World Estimation Abilities of Deaf and Hearing College Students

Various studies have examined possible loci of deaf learners' documented challenges with regard to reading, usually focusing on language-related factors. Deaf students also frequently struggle in mathematics and science, but fewer studies have examined possible reasons for those difficulties. The present study examined numerical and non-numerical (real-world) estimation skills among deaf and hearing college students, together with several cognitive abilities likely to underlie mathematics performance. Drawing on claims in the literature and some limited evidence from research involving deaf children, the study also considered the possibility that the use of sign language and/or the use of cochlear implants and spoken language might facilitate deaf college students' estimation skills and mathematics achievement more broadly. Results indicated relatively little impact of cochlear implant use or language modality on either estimation skills or overall mathematics ability. Predictors of those abilities differed for deaf and hearing learners. Results suggest the need to guard against overgeneralisations either within the diverse population of deaf learners or between deaf and hearing learners. They further emphasise the need for evidence-based practice in mathematics instruction appropriate for older deaf learners, rather than making assumptions from studies involving younger or narrowly-selected samples.

Achievement, Language, and Technology Use Among College-Bound Deaf Learners

Deaf learners are a highly heterogeneous group who demonstrate varied levels of academic achievement and attainment. Most prior research involving this population has focused on factors facilitating academic success in young deaf children, with less attention paid to older learners. Recent studies, however, have suggested that while factors such as early cochlear implantation and early sign language fluency are positively associated with academic achievement in younger deaf children, they no longer predict achievement once children reach high school age. This study, involving data from 980 college-bound high school students with hearing loss, examined relations between academic achievement, communication variables (audiological, language), and use of assistive technologies (e.g., cochlear implants [CIs], FM systems) and other support services (e.g., interpreting, real-time text) in the classroom. Spoken language skills were positively related to achievement in some domains, while better sign language skills were related to poorer achievement in others. Among these college-bound students, use of CIs and academic support services in high school accounted for little variability in their college entrance examination scores.

American Sign Language Syntax and Analogical Reasoning Skills Are Influenced by Early Acquisition and Age of Entry to Signing Schools for the Deaf

Failing to acquire language in early childhood because of language deprivation is a rare and exceptional event, except in one population. Deaf children who grow up without access to indirect language through listening, speech-reading, or sign language experience language deprivation. Studies of Deaf adults have revealed that late acquisition of sign language is associated with lasting deficits. However, much remains unknown about language deprivation in Deaf children, allowing myths and misunderstandings regarding sign language to flourish. To fill this gap, we examined signing ability in a large naturalistic sample of Deaf children attending schools for the Deaf where American Sign Language (ASL) is used by peers and teachers. Ability in ASL was measured using a syntactic judgment test and language-based analogical reasoning test, which are two sub-tests of the ASL Assessment Inventory. The influence of two age-related variables were examined: whether or not ASL was acquired from birth in the home from one or more Deaf parents, and the age of entry to the school for the Deaf. Note that for non-native signers, this latter variable is often the age of first systematic exposure to ASL. Both of these types of age-dependent language experiences influenced subsequent signing ability. Scores on the two tasks declined with increasing age of school entry. The influence of age of starting school was not linear. Test scores were generally lower for Deaf children who entered the school of assessment after the age of 12. The positive influence of signing from birth was found for students at all ages tested (7;6–18;5 years old) and for children of all age-of-entry groupings. Our results reflect a continuum of outcomes which show that experience with language is a continuous variable that is sensitive to maturational age.

Level of Educational Attainment Among Deaf Adults Who Attended Bilingual-Bicultural Programs

In Scandinavia and some other countries, a bilingual-bicultural approach to deaf education was celebrated in national programs from the mid-1980s until the broad popularity of cochlear implantation in middle 2000s created a shift back to an emphasis on spoken language for many deaf children. At the same time, only a few studies evaluated the long-term outcomes of bilingual-bicultural education, and several of their findings have raised questions about benefits of the approach. This study examined the level of educational attainment of 408 deaf individuals who attended primary school either before or during the period of bilingual-bicultural education in Denmark, both relative to a comparable hearing cohort. Beyond group comparisons, three logistic regression models were created to evaluate the prediction of educational attainment by a number of relevant variables. Compared to the hearing population, the deaf population had a significantly lower level of educational attainment both before and after the introduction of bilingual-bicultural education. Signed language and spoken language abilities, the kind of school attended, degree of hearing loss, parental hearing loss, and gender were found significantly to explain levels of educational attainment in the deaf population.

Longitudinal Receptive American Sign Language Skills Across a Diverse Deaf Student Body

This article presents results of a longitudinal study of receptive American Sign Language (ASL) skills for a large portion of the student body at a residential school for the deaf across four consecutive years. Scores were analyzed by age, gender, parental hearing status, years attending the residential school, and presence of a disability (i.e., deaf with a disability). Years 1 through 4 included the ASL Receptive Skills Test (ASL-RST); Years 2 through 4 also included the Receptive Test of ASL (RT-ASL). Student performance for both measures positively correlated with age; deaf students with deaf parents scored higher than their same-age peers with hearing parents in some instances but not others; and those with a documented disability tended to score lower than their peers without disabilities. These results provide longitudinal findings across a diverse segment of the deaf/hard of hearing residential school population.

Academic Achievement of Deaf and Hard-of-Hearing Students in an ASL/English Bilingual Program

There has been a scarcity of studies exploring the influence of students' American Sign Language (ASL) proficiency on their academic achievement in ASL/English bilingual programs. The aim of this study was to determine the effects of ASL proficiency on reading comprehension skills and academic achievement of 85 deaf or hard-of-hearing signing students. Two subgroups, differing in ASL proficiency, were compared on the Northwest Evaluation Association Measures of Academic Progress and the reading comprehension subtest of the Stanford Achievement Test, 10th edition. Findings suggested that students highly proficient in ASL outperformed their less proficient peers in nationally standardized measures of reading comprehension, English language use, and mathematics. Moreover, a regression model consisting of 5 predictors including variables regarding education, hearing devices, and secondary disabilities as well as ASL proficiency and home language showed that ASL proficiency was the single variable significantly predicting results on all outcome measures. This study calls for a paradigm shift in thinking about deaf education by focusing on characteristics shared among successful deaf signing readers, specifically ASL fluency.

Speech language therapy bilingual clinic, a written language therapeutical proposal to deaf people: case report

PURPOSE

This study aimed to analyze the written production of a deaf person who is in the process of written language acquisition.

METHODS

One person with hearing disability, called R., participated in this study together with his Speech Language Pathologist. The therapist, proficient in sign language, acted as an interlocutor and interpreter, prioritizing the interactive nature of language and interfering in the written production only when it was requested.

RESULTS

During the 3 years of work with R., a change in stance toward written language was observed. In addition, he began to reflect on his texts and utilize written Portuguese in a way that allowed his texts to be more coherent. Writing became an opportunity to show his singularity and to begin reconstructing his relationship with language.

CONCLUSION

Speech language pathology and audiology therapy, at a bilingual clinic, can allow people with hearing disability early access to sign language and, consequently, enable the development of the written form of Portuguese.