Dyslexia Exercises on my Tablet are more Fun
Luz Rello, Clara Bayarri, Azuki Gòrriz · 2013 · Proceedings of the 10th International Cross-Disciplinary Conference on Web Accessibility (W4A) · doi:10.1145/2461121.2461148
Summary
This paper presents Dyseggxia, a free mobile game for iOS and Android designed to help children with dyslexia practice language exercises in an engaging, adaptive format. Dyslexia affects approximately 10% of children worldwide and is characterized by difficulties with accurate word recognition and poor spelling. Traditional remediation relies on paper-based exercises that are static, unappealing to digitally-native children, and cannot adapt to individual needs. Additionally, many children with dyslexia also have dysgraphia (a co-occurring writing disorder), making paper-based exercises even more challenging. Dyseggxia addresses these limitations by presenting six types of word exercises — letter insertion, omission, substitution, word ending selection, word separation, and letter/syllable ordering — all derived from empirical analysis of corpora of English and Spanish texts written by children with dyslexia. The game uses natural language processing techniques to identify the most frequent error patterns in dyslexic writing and creates exercises specifically targeting those patterns. Text presentation follows research-based guidelines optimized for readability by people with dyslexia, and difficulty levels increase progressively using less frequent words, longer words, more complex morphology, and higher orthographic and phonetic similarity between targets and distractors.
Key findings
A think-aloud evaluation with 12 children with dyslexia confirmed that the game is fun and more attractive than traditional paper-based exercises. The study informed iterative design improvements, including the addition of in-game achievements where a penguin character is born, grows, and wins prizes as the child progresses — shareable via iOS Game Center to encourage engagement. Within nine months of its iOS release (June 2012 to March 2013), Dyseggxia was downloaded over 5,000 times. Three Spanish centres supporting children with dyslexia — Centro Creix Barcelona, Centro Coddia, and UDITTA — adopted the game into their official curricula, demonstrating real-world institutional uptake. The game is notable as the first dyslexia exercise app in both English and Spanish that is scientifically designed based on empirical error analysis rather than generic pedagogical methods.
Relevance
This work demonstrates the power of combining accessibility research with engaging design to create tools that children actually want to use. For digital accessibility practitioners, the paper illustrates several important principles: technology can separate the target skill from confounding barriers (isolating language practice from handwriting difficulties), adaptive systems can personalize accessibility support based on individual performance, and research-grounded design produces more effective interventions than generic approaches. The game-based format also shows how accessibility tools benefit from being intrinsically motivating rather than feeling like therapy. While the paper is a short conference demo, the real-world adoption by educational institutions and thousands of downloads indicate meaningful impact beyond the research context.
Tags: dyslexia · serious game · mobile accessibility · adaptive learning · natural language processing · children · cognitive accessibility · assistive technology