The Effect of Retrieval Practice on Vocabulary Learning for Children who are Deaf or Hard of Hearing

The goal of the current study was to determine if students who are deaf or hard of hearing (d/hh) would learn more new vocabulary words through the use of retrieval practice than repeated exposure (repeated study). No studies to date have used this cognitive strategy—retrieval practice—with children who are d/hh. Previous studies have shown that children with hearing loss struggle with learning vocabulary words. This deficit can negatively affect language development, reading outcomes, and overall academic success. Few studies have investigated specific interventions to address the poor vocabulary development for children with hearing loss. The current study investigated retrieval practice as a potentially effective strategy to increase word-learning for children who are d/hh and who use spoken language. It was found that children with hearing loss recalled a greater number of new vocabulary words when using retrieval practice than repeated exposure after a two day retention interval. This study also examined factors that influence whether a child remembers or forgets a word after a retention interval. Children who did not have an additional diagnosis recalled more words than children with an additional diagnosis. Children who were more efficient learners—took fewer trials to learn the word—recalled more words than children who were less efficient learners. High level of parent education and aided speech perception scores were not significant predictors of the children remembering the new words. In summary, this study was the first to show that retrieval practice caused students with hearing loss to learn more new vocabulary words than repeated exposure

Memory-card vowel training for child and adult second-language learners: A first report

Japanese adults and Spanish-Catalan children received auditory phonetic training for English vowels using a novel paradigm, a version of the common children's card game Concentration. Individuals played a computer-based game in which they turned over pairs of cards to match spoken words, drawn from sets of vowel minimal pairs. The training was effective for adults, improving vowel recognition in a game that did not explicitly require identification. Children likewise improved over time on the memory card game, but not on the present generalisation task. This gamified training method can serve as a platform for examining development and perceptual learning

A Comparison of Traditional Versus Electronic Word Wall Instruction on Word Identification in Kindergarteners with Developmental Disabilities

The purpose of this preliminary investigation was to examine the effectiveness of using a word wall strategy on the word identification skills of kindergarteners with developmental disabilities (DD). An alternating treatment design was used to examine the use of the word wall strategy and whether there were differences in children’s word identification and on the teacher’s sense of efficacy when using small-group traditional word wall instruction (Cunningham, 2000) versus an individualized electronic word wall (Narkon, Wells, & Segal, 2011) instructional format. Results indicated that both strategies were effective. However, children with motivational and attentional issues may differentially benefit from the EWW approach

Directions for the future of technology in pronunciation research and teaching

This paper reports on the role of technology in state-of-the-art pronunciation research and instruction, and makes concrete suggestions for future developments. The point of departure for this contribution is that the goal of second language (L2) pronunciation research and teaching should be enhanced comprehensibility and intelligibility as opposed to native-likeness. Three main areas are covered here. We begin with a presentation of advanced uses of pronunciation technology in research with a special focus on the expertise required to carry out even small-scale investigations. Next, we discuss the nature of data in pronunciation research, pointing to ways in which future work can build on advances in corpus research and crowdsourcing. Finally, we consider how these insights pave the way for researchers and developers working to create research-informed, computer-assisted pronunciation teaching resources. We conclude with predictions for future developments

Using rhythm to teach spelling to a child with autism

textThe purpose of this study was to develop a multimodal spelling acquisition program (MSAP) for children with autism that capitalizes on sensory perception skills that may be intact with this population to teach early spelling skills. Progress was monitored through seven phases: pre-assessment, baseline probe, acquisition probe, instruction sessions, post-assessment, and maintenance probes of the treatment. MSAP provides for three spelling instructional conditions: (1) instruction with rhythmic auditory feedback in the form of Morse Code presented via speakers at 450 Hz, (2) instruction with rhythmic tactile feedback of Morse Code presented via a bone oscillator, and (3) instruction without feedback. The MSAP program recorded the child's performance for spelling accuracy and rate for each word during the assessment probes. Although the child acquired spelling knowledge of the target words, the statistical analysis revealed no significant difference in the spelling acquisition between the instruction conditions. The computerized instruction did generalize to untaught words. This study's limitations and future directions are discussed.Communication Sciences and Disorder

Expressive language development in minimally verbal autistic children: exploring the role of speech production

Trajectories of expressive language development are highly heterogeneous in autism. I examine the hypothesis that co-morbid speech production difficulties may be a contributing factor for some minimally verbal autistic individuals. Chapters 1 and 2 provide an overview of language variation within autism, and existing intervention approaches for minimally verbal autistic children. These chapters situate this thesis within the existing literature. Chapter 3 describes a longitudinal study of expressive language in minimally verbal 3-5 year olds (n=27), with four assessment points over 12 months. Contrary to expectations, initial communicative intent, parent responsiveness and response to joint attention did not predict expressive language growth or outcome. Speech skills were significant predictors. Chapter 4 describes the design, development and feasibility testing of the BabbleBooster app, a novel, parent-meditated speech skills intervention, in which 19 families participated for 16 weeks. Acceptability feedback was positive but adherence was variable. I discuss how this could be improved in future iterations of the app and intervention protocol. Chapter 5 details how BabbleBooster’s efficacy was evaluated. For interventions with complex or rare populations, a randomized case series design is a useful alternative to an under-powered group trial. There was no evidence that BabbleBooster improved speech production scores, likely due to limited dosage. Future research using this study design could determine optimal treatment intensity and duration with an improved version of the app. Taken together, these studies underscore the contribution of speech production abilities to expressive language development in minimally verbal autistic individuals. I argue that this reflects an additional condition, and is not a consequence of core autism features. The intervention piloted here represents a first step towards developing a scalable tool for parents to support speech development in minimally verbal children, and illustrates the utility of randomized single case series for testing treatment effects in small, heterogeneous cohorts

Restructuring multimodal corrective feedback through Augmented Reality (AR)-enabled videoconferencing in L2 pronunciation teaching

The problem of cognitive overload is particularly pertinent in multimedia L2 classroom corrective feedback (CF), which involves rich communicative tools to help the class to notice the mismatch between the target input and learners’ pronunciation. Based on multimedia design principles, this study developed a new multimodal CF model through augmented reality (AR)-enabled videoconferencing to eliminate extraneous cognitive load and guide learners’ attention to the essential material. Using a quasi-experimental design, this study aims to examine the effectiveness of this new CF model in improving Chinese L2 students’ segmental production and identification of the targeted English consonants (dark /ɫ/, /ð/and /θ/), as well as their attitudes towards this application. Results indicated that the online multimodal CF environment equipped with AR annotation and filters played a significant role in improving the participants’ production of the target segments. However, this advantage was not found in the auditory identification tests compared to the offline CF multimedia class. In addition, the learners reported that the new CF model helped to direct their attention to the articulatory gestures of the student being corrected, and enhance the class efficiency. Implications for computer-assisted pronunciation training and the construction of online/offline multimedia learning environments are also discussed

The effect of rhythm-based computer-assisted music instruction designed for individual learning style preferences on the learning of preservice elementary education majors

This study investigated the effect of rhythm based computer-assisted music instruction designed for individual learning style preferences. Participants were undergraduate preservice elementary education majors (N = 82) enrolled in Fundamentals of Music. The Perceptual Learning Style Preferences Survey and the Diablo Valley College Learning Style Survey were used to measure learning preferences. Two content knowledge assessments were administered as pre and posttest: (a) Music Achievement Test (MAT) Test 2-Part 3-Auditory and Visual Discrimination subtest b and (b) Researcher-Developed Rhythm Test (RDRT). Researcher-developed software programs were constructed, teaching participants the basic elements of rhythm based on learning style preferences. Forty-three of the participants (13 auditory, 13 visual, and 17 tactile/kinesthetic) completed software programs designed for their individual learning preferences. A stratified randomly selected group (11 auditory, 10 visual, and 18 tactile/kinesthetic) was assigned software that addressed all learning style strategies (n = 39) to complete the rhythm unit. A repeated measures multivariate analysis of variance (MANOVA) conducted to determine the effect of three types of learning style strategies and two treatments (learner specific and all learning styles) on the two dependent variables (MAT and RDRT) revealed significant differences between the dependent measures. Two separate three-way repeated measures ANOVAs calculated on the MAT and RDRT found significant differences from pretest to posttest, indicating a significant increase in skill level on both measures. MAT scores revealed no significant differences with regards to treatment or learning style preferences. A significant two-way interaction between treatment and pretest to posttest was found for the RDRT. Both groups made significant gains due to treatment from pretest to posttest. The gain was greater for participants who used all learning styles software than for those who used individualized learning styles software. A significant two-way interaction among learning style strategies, RDRT pretest to posttest, was revealed. All participants made large gains due to treatment; tactile/kinesthetic learners gained noticeably less than aural and visual learners. Participants with the highest and lowest posttest scores (n = 23) from each learning style preference were selected for interviews. Overlapping themes indicated positive acceptance of the program, superior educational value, and creative program design