<ctx:context-object xmlns:xsi="http://www.w3.org/2001/XML" xmlns:ctx="info:ofi/fmt:xml:xsd:ctx" timestamp="2006-12-13" xsi:schemaLocation="info:ofi/fmt:xml:xsd:ctx http://www.openurl.info/registry/docs/info:ofi/fmt:xml:xsd:ctx"><ctx:referent><ctx:identifier>info:oai:utas.edu.au:475</ctx:identifier><ctx:metadata-by-val><ctx:format>info:ofi/fmt:xml:xsd:oai_dc</ctx:format><ctx:metadata><oai_dc:dc xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/">
        <dc:title>An approximation to d' for n-alternative forced choice</dc:title>
        <dc:creator>Alexander, JRM</dc:creator>
        <dc:subject>380109 Psychological Methodology, Design and Analysis</dc:subject>
        <dc:subject>380101 Sensory Processes, Perception and Performance</dc:subject>
        <dc:subject>380100 Psychology</dc:subject>
        <dc:description>An approximation suitable for computer estimation of d' from the total proportion of correct responses in an n-alternative forced choice experiment for any n is described. This approximation implies that ogival psychometric functions can be interpreted as linear in d', which provides signal detection threshold or sensitivity measures allowing comparisons between psychometric functions with different numbers of stimulus alternatives.</dc:description>
        <dc:publisher>Psychology Department</dc:publisher>
        <dc:date>1990</dc:date>
        <dc:type>Report</dc:type>
        <dc:type>NonPeerReviewed</dc:type>
        <dc:format>application/pdf</dc:format>
        <dc:identifier>http://eprints.utas.edu.au/475/1/nAFCrev207.pdf</dc:identifier>
        <dc:format>other</dc:format>
        <dc:identifier>http://eprints.utas.edu.au/475/2/Copy_of_nAFC.xls</dc:identifier>
        <dc:identifier>Alexander, JRM (1990) An approximation to d' for n-alternative forced choice. Project Report. Psychology Department, Hobart, Tasmania. (Unpublished)</dc:identifier>
        <dc:relation>http://eprints.utas.edu.au/475/</dc:relation></oai_dc:dc></ctx:metadata></ctx:metadata-by-val></ctx:referent></ctx:context-object>