Theses and Dissertations from UMD

Permanent URI for this communityhttp://hdl.handle.net/1903/2

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.

Browse

Filters

2005 - 20082

Settings

Author: search.filters.author.Rivadeneira Cortez, Anna WalkyriaSubject: search.filters.subject.Psychology, Cognitive

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Tag Clouds: How format and categorical structure affect categorization judgment
    (2008-05-05) Rivadeneira Cortez, Anna Walkyria; Norman, Kent L; Psychology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    This paper examines how category judgments are influenced by categorical structure and the formatting of tag clouds. Despite the enormous research on categorization, little research has been directed at investigating whether one person can recognize another's categorical structure. A novel approach to measure similarity and categorical structure is proposed. This approach involves the use of latent semantic analyses to compute semantic distances between category exemplars. The empirical domain will be tag clouds, a new development in social computing that provides a particularly useful paradigm for investigating how people identify the categorical structures of others. Three experiments examine how categorical structure and different formatting styles used in tag clouds might affect categorization. Findings reveal that categorization judgments are influenced by categorical structure and tighter structures result in higher accuracy. Format variables such as font size and sorting order were also found to influence accuracy. Future experimental directions are detailed.
  • Thumbnail Image
    Item
    THE EFFECTS OF ORDER AND DIFFERENTIATING INFORMATION IN DECISION MAKING
    (2005-05-03) Rivadeneira Cortez, Anna Walkyria; Norman, Kent L; Psychology; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    A condition under which both primacy and recency effects occur is demonstrated. Primacy and recency are observed in decisions among alternatives that do not have differentiating information. Decision makers, however, need to base their decisions on differentiating information; individuals search for information that may assist them in discriminating options. Only under the absence of such information order effects influence decisions.