| Sampling methods for identifying differences in source reliability. | |
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MedLine Citation:
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PMID: 11277447 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study explored observer performance in using across-trial and within-trial variability information to weight sources based on reliability. Three trained observers performed a multi-element, visual signal-detection task under 3 block-type conditions: a fixed block condition and 2 random conditions. In the fixed block condition, the observers had both within- and across-trial variability information to identify differences in source reliability. The random conditions eliminated the across-trial information, leaving only within-trial variability information in 1 case and neither within- nor across-trial variability information in another case. There was a significant block-type effect. Observers could use differences in across-trial variability of individual sources to assign weights. Although there was a difference in the weights assigned to reliable and unreliable sources in the partial-random condition (in which within-trial variability information was available), only 1 participant showed a significant difference in the weight assignment relative to the full-random condition. Thus, altogether, observers were not very efficient at using within-trial variability to weight sources accordingly. |
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Authors:
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D A Montgomery |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: The Journal of general psychology Volume: 128 ISSN: 0022-1309 ISO Abbreviation: J Gen Psychol Publication Date: 2001 Jan |
Date Detail:
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Created Date: 2001-03-29 Completed Date: 2001-05-31 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 2985111R Medline TA: J Gen Psychol Country: United States |
Other Details:
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Languages: eng Pagination: 5-20 Citation Subset: IM |
Affiliation:
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Department of Psychology, Bradley University, Peoria, IL 61625, USA. montgom@hilltop.bradley.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Attention* Computer Graphics* Decision Making* Female Humans Judgment* Male Reproducibility of Results* Research Design Signal Detection, Psychological Visual Perception |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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