Undergraduate Honours Theses

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Browsing Undergraduate Honours Theses by Subject "Accuracy"

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    Adults’ perceptions of children who disclose a transgression to peers or adults
    (Faculty of Arts, University of Regina, 2017-04) Harvey, Madison B.
    Children who witness or experience a transgression often do not disclose the event to anyone. There are a variety of reasons why a child may not disclose this event, such as being asked to keep it a secret, fear that they will not be believed, or concerns about their safety. When children do disclose, it may be to an adult or another child. Yet, it has not been established how these peer- to-peer disclosures are perceived by adults. The present study examined adult perceptions of children who disclose (or not) to a peer and children who disclose (or not) to an adult. Participants rated children on measures of credibility, honesty, and accuracy after hearing a recorded conversation of a child discussing an event to either a peer or an adult. Results indicate that children who disclosed a transgression were perceived as less credible, less honest, and less accurate when talking to another child. This has significant implications for the justice system, as it demonstrates that children who disclose a transgression may be seen as less credible witnesses.
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    Assessing a new teaching method for Point-of-Care Ultrasound
    (Faculty of Arts, University of Regina, 2025-04) Pérez, Ana Carolina Martínez
    Point-of-care ultrasound (POCUS) uses small ultrasound devices that can be used at patients’ bedsides. POCUS can lead to faster diagnoses and treatment but requires extensive training to use effectively. This study evaluated whether eye tracking can differentiate between experts and novice POCUS users to help develop better teaching methods. Ten novices (medical students) and 1 expert (ER physician) had their eye movements recorded while they viewed POCUS lung videos of three different types: Pneumothorax (collapsed lung), Healthy Lung, and Potential False Diagnosis (pseudopneumothorax) to determine the presence of Pneumothorax. The expert had 100% accuracy but the novices’ accuracy did not go above 60%. Novices’ performance was best on the Pneumothorax videos. The expert had high confidence in their decisions while the novices had low to moderate confidence levels. Heat maps showed that the expert had a much more focused gaze on the area of interest (AOI) while novices missed the AOI or had more scattered gaze patterns. This study showed that gaze patterns and accuracy did not always match, where often a participant showed a gaze pattern associated to accuracy but gave an incorrect response, or vice versa. Instead of inferring skill only from gaze, this observation can tell about the specific level of both ultrasound knowledge and visual search strategies, and provide personalized feedback to learners. It also tells expert gaze involves fixating only the correct area, then making the correct diagnostic decision, and novices need training on both to advance towards expertise.
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    The understanding of arithmetic concepts across grades
    (Faculty of Arts, University of Regina, 2020-04) Orobosa, Gladys
    The development of a firm grasp of arithmetic principles follows a conceptual understanding of the concepts in question, which helps in simplifying computation and eliminating errors that may occur during calculation. The goal of this study was to expand on the understanding of the arithmetic principles of inversion (a + b - b), associativity (a + b - c), and equivalence (a + b + c = a + _). Participants were grade 2, 3, and 4 children from two elementary schools. Participants were presented with 12 three-term arithmetic problems, containing four from each category of concepts. Participants replied with their answers followed by a verbal report of steps employed for each question. Accuracy and strategy were immediately recorded after each question. Two 3 by 3 mixed-model ANOVAs and a correlational analysis on grade, accuracy, and shortcut-use were performed. The results showed an increase in the use and accuracy of the inversion and equivalence shortcut across grades, with the concept of inversion being the most used and the inversion problems having the highest overall accuracy. The associativity shortcut was the least likely to be used, and the equivalence problems had the lowest accuracy overall.