Sampling methods for identifying differences in source reliability.
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 conditio...
| Publicado en: | Journal of General Psychology Vol. 128; no. 1; pp. 5 - 21 |
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| Formato: | Artículo |
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Taylor & Francis Ltd
January 2001
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ssf&AN=510155742&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 510155742 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 00221309 JGP jtl: Journal of General Psychology issn: 00221309 maglogo: N pubinfo: dt: January 2001 vid: 128 iid: 1 pid: 58221 pub: Taylor & Francis Ltd artinfo: ui: 510155742 10.1080/00221300109598894 ppf: 5 ppct: 16 formats: fmt: – @attributes: type: T – @attributes: type: P size: 959KB tig: atl: Sampling methods for identifying differences in source reliability. aug: au: Montgomery, DeMaris A. su: Signal detection (Psychology) Information display systems Decision making sug: subj: Signal detection (Psychology) Information display systems Decision making ab: 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. Reprinted by permission of the publisher. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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