Theses and Dissertations from UMD

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New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Author: search.filters.author.Ampofo, DavidSubject: search.filters.subject.Math

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    DOES VISUOSPATIAL WORKING MEMORY MATTER IN MENTAL ARITHMETIC?
    (2018) Ampofo, David; Dougherty, Michael; Psychology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    Approximate Arithmetic is a task that requires one to approximate the number of dots in dot arrays to add or subtract pairs of dot arrays. Past work has shown that Approximate Arithmetic is a significant predictor of symbolic mental arithmetic. Approximate Arithmetic is thought to engage processes like Visuospatial Working Memory. Those with higher Visuospatial Working Memory ability are better at Approximate Arithmetic. However, few studies have looked at both Visuospatial Working Memory and Approximate Arithmetic’s contribution to variance in mental arithmetic performance. The current study examines the relation between Approximate Arithmetic, symbolic mental arithmetic, and Visuospatial Working Memory. Mediation analyses indicate that the relation between Approximate Arithmetic and mental arithmetic is fully mediated by individual differences in Visuospatial Working Memory. While additional analyses confirm the robustness and dominance of this full mediation model in predicting math ability.