There is consensus among researchers that misspellings are something to avoid. However, misspellings also convey relevant information for researchers and educators. The present study is a first effort toward the analysis of misspellings produced by Portuguese children. Specifically, we aimed to examine the association between misspellings in dictation and composing tasks; compare misspellings across grade, type, and task; and test the contribution of different misspellings produced in dictation and in composition to text quality. For that, 933 Portuguese pupils in Grade 2 (n = 297), Grade 4 (n = 302), and Grade 6 (n = 334) performed a spelling-to-dictation task and wrote an opinion essay. Misspellings were categorized into phonetically inaccurate, phonetically accurate, and stress mark errors. Results showed correlations between the same type of misspellings across tasks for phonetically inaccurate errors in Grades 2 and 4, and phonetically accurate errors in Grade 2. Moreover, pupils produced more misspellings in dictation than composing tasks, and there was a progressive decrease in phonetically inaccurate and phonetically accurate misspellings across schooling, though stress mark errors were more frequent in Grade 4 than in other grades. Finally, spelling errors predicted text quality, particularly in younger children. Overall, these findings are aligned with extant results on spelling development and support current voices claiming for fine-grained analyses of misspellings. As they may vary across grade and task, and impact text quality differently, a detailed approach to spelling errors can provide valuable information on the development of this skill.

This study investigates spelling abilities of 189 second, third, and fourth graders using a word and pseudoword dictation task in European Portuguese. We analyzed the effect of orthographic complexity on spelling accuracy and the moderating role of length (two vs. three syllables), lexicality (words vs. pseudowords), and grade (second, third, and fourth). Each item represented one of the following orthographic complexity categories: digraph, contextual consistency, position consistency, consonant cluster, stress mark, inconsistency, and silent letter ‹h›. Digraphs and position consistencies reached high levels of accuracy already in Grade 2, but stress marks, inconsistencies, and the silent letter ‹h› were not yet fully mastered by the end of primary school. Performance across complexities was more discrepant in Grade 2 than in Grades 3 and 4. Moreover, within each complexity, there were larger differences between Grades 2 and 3 than between Grades 3 and 4. Words were better spelled than pseudowords in position consistency and stress mark categories, and a shorter length improved accuracy only in consonant clusters and stress marks. These findings underline the importance of applying learning and teaching strategies in early education adapted to the properties of the writing system to be learned.

Dyslexics underperform controls in estimating and comparing time intervals defined by visual stimuli. Accuracy in vision-based duration perception requires efficient processing of visual events because these will define the onset and offset of time intervals. Since dyslexics have difficulties processing dimensions of visual stimuli like luminance contrasts and motion, we do not know the extent to which these visual deficits are responsible for their difficulties in judging time intervals. To address this gap, we asked adults with dyslexia and matched controls to perform an interval comparison task involving five different types of visual stimuli with different levels of challenge regarding luminance contrasts and motion. If the expected disadvantage of dyslexics in visual duration perception increased for stimuli requiring increased luminance or motion processing, this would indicate that visual processing plays a role. Results showed poorer time discrimination in dyslexics, but this disadvantage did not change according to stimulus type. Complementary analyses of oculomotor behavior during the task suggested that the poorer timing performance of dyslexics may relate instead to attention and/or engagement with the task. Our findings strengthen the evidence in favor of visual duration perception deficits in dyslexia, but not the hypothesis that these result from purely visual problems.

What is the hallmark of a good speller? Spelling is a critical component in learning to become literate, but how it works in literate adults remains poorly explored. We examined word and pseudoword spelling in 214 adults in relation to general cognitive abilities, vocabulary, reading history, reading performance, phonological processing and rapid automatized naming. We conducted hierarchical multiple regression analyses to uncover predictors of spelling performance and compared a subsample of good and poor spellers to identify patterns of cognitive and language abilities associated with high vs. low spelling ability. In the regression model under test, which progressed from general cognitive and language abilities to specific reading-related skills, the most important predictor for word spelling was vocabulary, and for pseudoword spelling phonological processing (phoneme deletion). The model explained 20% of word spelling, and 8% of pseudoword spelling, variance. Good spellers outperformed poor spellers in reading connected text and pseudowords, and in phonological processing; poor spellers typically had a history of reading difficulties but similar levels of cognitive ability, word reading and RAN performance. Overall, our findings indicate that adult spelling relies more strongly on word knowledge than on reading proficiency and that, as in literacy acquisition, good phonology-related abilities are a hallmark of proficient adult spellers.

Research suggested that developing mindfulness skills in children improves proximal outcomes, such as attention and executive functions, as well as distal outcomes, such as academic achievement. Despite empirical evidence supporting this claim, research on the benefits of mindfulness training in child populations is scarce, with some mixed findings in the field. Here, we aimed to fill in this gap, by examining the effects of a mindfulness training on third graders’ proximal and distal outcomes, namely, attention and executive functions (viz., inhibitory control, working memory, and cognitive flexibility) as well as literacy-related achievement (viz., handwriting fluency, text quality, Portuguese grades). These outcomes were measured with behavioral tasks and teacher ratings. Sixty-six Portuguese children were randomly allocated to an experimental group receiving mindfulness training (n = 29) or an active control group receiving relaxation training (n = 37). Both training programs were implemented by psychologists in two 30-min weekly sessions for 8 weeks. All students were assessed before and after the interventions. Three main findings are noteworthy: (a) mindfulness training enhanced teacher-rated cognitive flexibility and a performance-based composite score of executive functions among children with higher pretest scores; (b) relaxation training improved performance-based cognitive flexibility and the composite score of executive functions among children with lower pretest scores; (c) children receiving mindfulness training had higher handwriting fluency and better grades in Portuguese than those receiving relaxation training. These findings provide preliminary evidence on the benefits of mindfulness training in educational settings and highlight the moderating role of baseline performance on those benefits.