Use of spellcheck in text production by college students with dyslexia

It is widely assumed that by identifying spelling errors and suggesting replacement words, spellcheck allows writers to revise spelling errors even if they do not have the necessary spelling knowledge. However, there have been no studies evaluating the efficacy of modern spellcheck tools for students with spelling difficulties, such as dyslexia. In fact, the very limited and dated research into use of spellcheck by writers with dyslexia indicated that, even when using spellcheck to revise spelling errors, this group left many misspellings in their texts. The current study is the first to investigate whether a modern spellcheck program allows college students with dyslexia to produce texts that are as free from misspellings as texts by their peers, and whether this affects the quality of the text in other ways. College students with dyslexia (n=18) and a control group of peers (n=18) wrote two short essays using Microsoft Word, one with spellcheck active and one without spellcheck active. Spelling accuracy and overall quality of the texts were measured. Without spellcheck, students with dyslexia made more misspellings than the control group, however, with spellcheck active students from both groups left almost zero misspelled words in their texts. Text quality was not affected. Results demonstrate that spellcheck helps college students with dyslexia to overcome the limitations that poor spelling knowledge imposes. Importantly, results indicate that spellcheck does not lead to improvements in text beyond spelling accuracy, or lead to poorer quality texts, indicating that it is suitable for use in exam conditions

Handwriting processes when spelling morphologically complex words in children with and without Developmental Language Disorder

INTRODUCTION: Representations activated during handwriting production code information on morphological structure and reflect decomposition of the root and suffix. Children with Developmental Language Disorder (DLD) have significant difficulties in spelling morphologically complex words, but previous research has not sought evidence for a morphological decomposition effect via an examination of handwriting processes in this population. METHOD: Thirty-three children aged 9-10 years with DLD, 33 children matched for chronological age (CA), and 33 younger children aged 7-8 years matched for oral language ability (LA) completed a dictated spelling task (21 words; 12 with inflectional suffixes, nine with derivational suffixes). The task was completed on paper with an inking pen linked to a graphics tablet running the handwriting software Eye and Pen. Pause analyses and letter duration analyses were conducted. RESULTS: The three groups showed similar handwriting processes, evidencing a morphological decomposition effect in a natural writing task. Pause durations observed at the root/suffix boundary were significantly longer than those occurring in the root. Letter durations were also significantly longer for the letter immediately prior to the boundary compared to the letter after it. Nevertheless, despite being commensurate to their LA matches for mean pause durations and letter durations, children with DLD were significantly poorer at spelling derivational morphemes. Handwriting processes did significantly predict spelling accuracy but to a much lesser extent compared to reading ability. DISCUSSION: It is suggested that derivational spelling difficulties in DLD may derive more from problems with underspecified orthographic representations as opposed to handwriting processing differences

Hand-writing processes when spelling morphologically complex words in children with and without Developmental Language Disorder

Introduction: Representations activated during hand-writing production code information on morphological structure and reflect decomposition of the root and suffix. Children with Developmental Language Disorder (DLD) have significant difficulties in spelling morphologically complex words, but previous research has not sought evidence for a morphological decomposition effect via an examination of hand-writing processes in this population. Method: Thirty-three children aged 9-10 years with DLD, 33 children matched for chronological age (CA), and 33 younger children aged 7-8 years matched for oral language ability (LA) completed a dictated spelling task (21 words; 12 with inflectional suffixes, nine with derivational suffixes). The task was completed on paper with an inking pen linked to a graphics tablet running the hand-writing software Eye and Pen. Pause analyses and letter duration analyses were conducted. Results: The three groups showed similar hand-writing processes, evidencing a morphological decomposition effect in a natural writing task. Pause durations observed at the root/suffix boundary were significantly longer than those occurring in the root. Letter durations were also significantly longer for the letter immediately prior to the boundary compared to the letter after it. Nevertheless, despite being commensurate to their LA matches for mean pause durations and letter durations, children with DLD were significantly poorer at spelling derivational morphemes. Hand-writing processes did significantly predict spelling accuracy but to a much lesser extent compared to reading ability. Discussion: It is suggested that derivational spelling difficulties in DLD may derive more from problems with underspecified orthographic representations as opposed to hand-writing processing differences

Effects of a high-dose 24-h infusion of tranexamic acid on death and thromboembolic events in patients with acute gastrointestinal bleeding (HALT-IT): an international randomised, double-blind, placebo-controlled trial

Background: Tranexamic acid reduces surgical bleeding and reduces death due to bleeding in patients with trauma. Meta-analyses of small trials show that tranexamic acid might decrease deaths from gastrointestinal bleeding. We aimed to assess the effects of tranexamic acid in patients with gastrointestinal bleeding. Methods: We did an international, multicentre, randomised, placebo-controlled trial in 164 hospitals in 15 countries. Patients were enrolled if the responsible clinician was uncertain whether to use tranexamic acid, were aged above the minimum age considered an adult in their country (either aged 16 years and older or aged 18 years and older), and had significant (defined as at risk of bleeding to death) upper or lower gastrointestinal bleeding. Patients were randomly assigned by selection of a numbered treatment pack from a box containing eight packs that were identical apart from the pack number. Patients received either a loading dose of 1 g tranexamic acid, which was added to 100 mL infusion bag of 0·9% sodium chloride and infused by slow intravenous injection over 10 min, followed by a maintenance dose of 3 g tranexamic acid added to 1 L of any isotonic intravenous solution and infused at 125 mg/h for 24 h, or placebo (sodium chloride 0·9%). Patients, caregivers, and those assessing outcomes were masked to allocation. The primary outcome was death due to bleeding within 5 days of randomisation; analysis excluded patients who received neither dose of the allocated treatment and those for whom outcome data on death were unavailable. This trial was registered with Current Controlled Trials, ISRCTN11225767, and ClinicalTrials.gov, NCT01658124. Findings: Between July 4, 2013, and June 21, 2019, we randomly allocated 12 009 patients to receive tranexamic acid (5994, 49·9%) or matching placebo (6015, 50·1%), of whom 11 952 (99·5%) received the first dose of the allocated treatment. Death due to bleeding within 5 days of randomisation occurred in 222 (4%) of 5956 patients in the tranexamic acid group and in 226 (4%) of 5981 patients in the placebo group (risk ratio [RR] 0·99, 95% CI 0·82–1·18). Arterial thromboembolic events (myocardial infarction or stroke) were similar in the tranexamic acid group and placebo group (42 [0·7%] of 5952 vs 46 [0·8%] of 5977; 0·92; 0·60 to 1·39). Venous thromboembolic events (deep vein thrombosis or pulmonary embolism) were higher in tranexamic acid group than in the placebo group (48 [0·8%] of 5952 vs 26 [0·4%] of 5977; RR 1·85; 95% CI 1·15 to 2·98). Interpretation: We found that tranexamic acid did not reduce death from gastrointestinal bleeding. On the basis of our results, tranexamic acid should not be used for the treatment of gastrointestinal bleeding outside the context of a randomised trial

Investigating the impact of spellcheck on writing for students with and without dyslexia

Background. Writers with dyslexia have difficulty with spelling, which may also restrict their written lexical diversity. Thus spellcheck could be particularly useful to these writers. However, writers with dyslexia also have difficulties with executive functioning required to prevent distraction, and so the automatic underlining of spellcheck could be disruptive for this group. Little empirical evidence for effects of spellcheck exists in the literature. Furthermore, functions within word processing programs, such as spellcheck, are not accounted for in theoretical frameworks of writing. Method. Three studies were conducted to address three research questions. First a survey was used to explore how and why writers use word processing programs, and spellcheck in particular (n=30 with dyslexia, n=177 without dyslexia). The second study comprised of two experiments that used keystroke logging to monitor writing behaviour to find out whether spellcheck disrupts writing and what this means in terms of cognitive processing, particularly for writers with dyslexia (experiment one, n=18 with dyslexia, n= 18 control group; experiment two, n=10 with dyslexia, n=10 control group). In the third study, essays written with and without spellcheck, (n=18 with dyslexia, control group n=18), were measured to find out whether spellcheck improves spelling accuracy and lexical diversity more for writers with dyslexia than for writers without dyslexia. Results. Findings make original contributions to knowledge. Survey results indicated that groups differ in their motivations for using word processing programs but both groups report that they always use spellcheck in its default settings. Writing behaviour showed that spellcheck disrupts writing. Furthermore, when writers were disrupted, they were more likely to forget what they were going to write next. Writers with dyslexia were affected more than writers in the control groups. Text measures demonstrated that, for both groups, spellcheck reduced the number of spelling errors to near zero and, for writers with dyslexia, spellcheck also increased the lexical diversity of essays. Lexical diversity was not increased for the control group. Conclusions. Findings have practical implications regarding advice for best practice when writing with spellcheck, which differs per group. The fact that each group was affected by spellcheck differently relates to theories of dyslexia and has implications concerning cognitive processing during writing. It is proposed that writing models are expanded to account for effects of spellcheck on writing

Effects of a high-dose 24-h infusion of tranexamic acid on death and thromboembolic events in patients with acute gastrointestinal bleeding (HALT-IT): an international randomised, double-blind, placebo-controlled trial

BackgroundTranexamic acid reduces surgical bleeding and reduces death due to bleeding in patients with trauma. Meta-analyses of small trials show that tranexamic acid might decrease deaths from gastrointestinal bleeding. We aimed to assess the effects of tranexamic acid in patients with gastrointestinal bleeding.MethodsWe did an international, multicentre, randomised, placebo-controlled trial in 164 hospitals in 15 countries. Patients were enrolled if the responsible clinician was uncertain whether to use tranexamic acid, were aged above the minimum age considered an adult in their country (either aged 16 years and older or aged 18 years and older), and had significant (defined as at risk of bleeding to death) upper or lower gastrointestinal bleeding. Patients were randomly assigned by selection of a numbered treatment pack from a box containing eight packs that were identical apart from the pack number. Patients received either a loading dose of 1 g tranexamic acid, which was added to 100 mL infusion bag of 0·9% sodium chloride and infused by slow intravenous injection over 10 min, followed by a maintenance dose of 3 g tranexamic acid added to 1 L of any isotonic intravenous solution and infused at 125 mg/h for 24 h, or placebo (sodium chloride 0·9%). Patients, caregivers, and those assessing outcomes were masked to allocation. The primary outcome was death due to bleeding within 5 days of randomisation; analysis excluded patients who received neither dose of the allocated treatment and those for whom outcome data on death were unavailable. This trial was registered with Current Controlled Trials, ISRCTN11225767, and ClinicalTrials.gov, NCT01658124.FindingsBetween July 4, 2013, and June 21, 2019, we randomly allocated 12 009 patients to receive tranexamic acid (5994, 49·9%) or matching placebo (6015, 50·1%), of whom 11 952 (99·5%) received the first dose of the allocated treatment. Death due to bleeding within 5 days of randomisation occurred in 222 (4%) of 5956 patients in the tranexamic acid group and in 226 (4%) of 5981 patients in the placebo group (risk ratio [RR] 0·99, 95% CI 0·82–1·18). Arterial thromboembolic events (myocardial infarction or stroke) were similar in the tranexamic acid group and placebo group (42 [0·7%] of 5952 vs 46 [0·8%] of 5977; 0·92; 0·60 to 1·39). Venous thromboembolic events (deep vein thrombosis or pulmonary embolism) were higher in tranexamic acid group than in the placebo group (48 [0·8%] of 5952 vs 26 [0·4%] of 5977; RR 1·85; 95% CI 1·15 to 2·98).InterpretationWe found that tranexamic acid did not reduce death from gastrointestinal bleeding. On the basis of our results, tranexamic acid should not be used for the treatment of gastrointestinal bleeding outside the context of a randomised trial.</div