This thesis describes the analysis of over 1300 spelling and typing errors. It introduces and describes many empirical rules which these errors obey and shows that a vast majority of errors are variations on some 3000 basic forms. It also describes and tests an intelligent, knowledge based spelling error correction algorithm based on the above work. Using the Shorter Oxford English dictionary it correctly identifies over 90% of typical spelling errors and over 80% of all spelling errors, where the correct word is in the dictionary. The methodology used is as follows: An error form is compared with each word in that small portion of the dictionary likely to contain the intended word, but examination of improbable words is rapidly abandoned using heuristic rules. Any differences between the dictionary word and the error form are compared with the basic forms. Any dictionary word which differs from the error form only by one or two basic forms is transferred to a separate list. The program then acts as an expert system where each of the basic forms is a production or rule with a subjective Bayesian probability. A choice is made from the list by calculating the Bayesian probability for each word in the separate list. An interactive spelling error corrector using the concepts and methods developed here is operating on the Bradford University Cyber 170/720 Computer, and was used to correct this thesis. The corrector also runs on VAX and Prime computers.

Thesis (M. A. (Language Education)) -- University of Limpopo, 2022 / The study focused on the grammatical errors made by learners in writing descriptive essays: A case study of Mmakgabo Senior Secondary School, Koloti circuit, Limpopo, South Africa, paying much attention to the use of grammatical rules features specifically, in their academic piece of writing (descriptive essay). The study aimed at finding out the patterns of grammatical errors that are present in learners’ essays and the effective approach that one can use to trace the grammatical errors made by school learners in descriptive essays. The nature of the study and type of data to be collected motivated the researcher to use qualitative approach. Therefore, the researcher deployed qualitative method to collect and analyse data for this study. This method gave the researcher a wide range of opportunities to collect invaluable data which made him to gain in-depth insight of the study and the problem researched. As data collection instruments, the research firstly relied on document analysis by analysing English essay scripts of learners. In addition, the researcher conducted structured interviews by asking relevant questions to English teachers in order to ascertain their experiences and knowledge of the kind of grammatical errors learners make when they write English texts. The researcher found from document analysis that learners commit grammatical errors such as the use informal language, sentences fragment, spelling errors, incorrect use of nouns, pronouns, adjectives, adverbs, and prepositions. The interview findings also presented similar findings and the interviewees ranked learners’ adherence to grammatical rules to average level. The researcher relied on the findings of both the interviews, and document analysis interpreted in conjunction with recent empirical studies to conclude that learners still have many challenges with regard to following grammatical rules when they write in English. Therefore, the researcher recommends that teachers put extra effort to teach learners how to write coherently in English

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No / Introduction Older people in care homes are at increased risk of medication errors and adverse drug events. The effect of formulation on administration errors is not known, that is whether the medicine is a tablet or capsule, liquid or device such as an inhaler. Also, the impact on administration errors of monitored dosage systems (MDS), commonly used in UK care homes to dispense tablets and capsules, is not known. This study investigated the influence of formulation and MDS on administration errors. Methods Administration errors were identified by pharmacists (using validated definitions) observing two drug rounds of residents randomly selected from a purposive sample of UK nursing and residential homes. Errors were classified and analysed by formulation and medicine delivery system. Results The odds of administration errors by formulation, when compared with tablets and capsules in MDS, were: liquids 4.31 (95% CI 2.02 to 9.21; p=0.0002); topicals/transdermals/injections 19.61 (95% CI 6.90 to 55.73; p<0.0001); inhalers 33.58 (95% CI 12.51 to 90.19; p<0.0001). The odds of administration errors for tablets and capsules not in MDS were double those that were dispensed in MDS (adjusted OR 2.14, 95% CI 1.02 to 4.51; p=0.04). Conclusions Inhalers and liquid medicines were associated with significantly increased odds of administration errors. Training of staff in safe administration of these formulations needs implementing. Although there was some evidence that MDS reduced the odds of an administration error, the use of MDS impacts on other aspects of medicines management. Because of this, and as the primary topic of our study was not MDS, a prospective trial specifically designed to evaluate the overall impact of MDS on medicine management in care homes is needed.

This study investigates error fossilisation in the written English of Xhosa - speaking students. It is hypothesised that there is no statistically significant difference in the language errors of two groups of Grade 10 and Grade 12 students. Two randomly selected groups of 30 Grade 10 and 30 Grade 12 students in a rural senior secondary school in the Eastern Cape province were required to write two essays, of which the first two hundred words of each essay were marked. A frequency count of errors was done and comparisons were made. The findings indicate that the Grade 12s consistently made fewer errors. However, the difference is only statistically significant in the case of prepositions and concord, and is insignificant in tenses, pronouns and articles. The findings also show evidence of fossilisation given the persistence of some of the errors. Certain features in the student's language were not eradicated by the additional two years exposure to English. / English Studies / M.A. (Teaching English to Speakers of Other Languages)

A widespread and persistent memory error that people commit on a daily basis is the post-completion error (PCE; i.e., forgetting to complete the final step of a procedural task). PCEs occur in the railroad industry when a locomotive conductor changes the direction of a rail switch but fails to report this change. This particular error could contribute to unsafe conditions as another train traveling on the same track could derail. Although training can help reduce some of the factors leading to unsafe conditions on the rail, research has demonstrated that PCEs are different from other errors of omission in that they cannot be eliminated through training, which makes them a difficult problem to address. Therefore, there is a need to explore new remedial actions designed to reduce PCEs. The current study investigated the effectiveness of a theoretically motivated intervention at reducing PCEs in trainyard operations, where making these errors could be life-threatening. Twenty-eight undergraduates completed trainyard tasks within a high-fidelity simulator. Each participant received the behavioral intervention in one block and no intervention in another. Specifically, participants were required to perform an additional task designed to remind participants of the post-completion (PC) step. The intervention significantly reduced PCE rates in the context of trainyard operations, on average, by 65%. We discuss implications of these results on reducing trainyard accidents, and how this outcome can contribute to the literature on the cause of PCEs.

This study investigates error fossilisation in the written English of Xhosa - speaking students. It is hypothesised that there is no statistically significant difference in the language errors of two groups of Grade 10 and Grade 12 students. Two randomly selected groups of 30 Grade 10 and 30 Grade 12 students in a rural senior secondary school in the Eastern Cape province were required to write two essays, of which the first two hundred words of each essay were marked. A frequency count of errors was done and comparisons were made. The findings indicate that the Grade 12s consistently made fewer errors. However, the difference is only statistically significant in the case of prepositions and concord, and is insignificant in tenses, pronouns and articles. The findings also show evidence of fossilisation given the persistence of some of the errors. Certain features in the student's language were not eradicated by the additional two years exposure to English. / English Studies / M.A. (Teaching English to Speakers of Other Languages)

Abstract: This paper is based on a qualitative investigation concerning the effect of errors on the intelligibility of learner texts and whether there are some errors that can be considered graver than others. The investigation was based on five student texts that were collected at an upper secondary school in the Swedish province of Värmland. The texts were sent to five native speaker evaluators in Britain and the United States of America. The errors represented were categorized as followed: substance, grammar, word choice, transfer errors and other errors.The results indicate that errors concerning substance, word choice, other errors and grammar were not considered grave. Concerning the grammatical errors, there were only a small number of cases that were considered grave. Therefore, the conclusion was drawn that grammatical errors do not affect the intelligibility of any of the five texts. However, the results from the investigation show that transfer errors, i.e. when the writer has transferred characteristics from the first language to the target language, were considered affecting the intelligibility to a larger extent than errors belonging to the other categories.