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{
    "pk": 33107,
    "title": "A Metric for Situated Difficulty",
    "subtitle": null,
    "abstract": "Analogy, conceptual change and problem reformulation have \nbeen central components in the exploration of human problem \nsolving. A Situation Theoretic approach is developed to model \nanalogy and conceptual change. This model is then used to \nrelate a problem's representation to the associated cognitive \ndifficulty. In this Unified framework the cognitive difficulty of \nisomorphic problem situations is defined in terms of the task, \nobjects and relations of the problem situation. These compo?nents are then decomposed based on an Ecological Information \nProcessing user model. The decomposition turns a problem sit?uation the structure and dynamics of the problem; the rules or \nconstraints which are applicable; and the necessary instruc?tions for user interaction. From this, the cognitive difficulty \nassociated with a problem representation is shown to be largely \ndetermined by the \"instructional\" component.",
    "language": "eng",
    "license": {
        "name": "",
        "short_name": "",
        "text": null,
        "url": ""
    },
    "keywords": [],
    "section": "17",
    "is_remote": true,
    "remote_url": "https://escholarship.org/uc/item/2m11900q",
    "frozenauthors": [
        {
            "first_name": "Carl",
            "middle_name": "",
            "last_name": "Edlund",
            "name_suffix": "",
            "institution": "University of Pittsburgh",
            "department": ""
        },
        {
            "first_name": "Michael",
            "middle_name": "",
            "last_name": "Lewis",
            "name_suffix": "",
            "institution": "University of Pittsburgh",
            "department": ""
        }
    ],
    "date_submitted": null,
    "date_accepted": null,
    "date_published": "1995-01-01T18:00:00Z",
    "render_galley": null,
    "galleys": [
        {
            "label": "PDF",
            "type": "pdf",
            "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/33107/galley/24168/download/"
        }
    ]
}