Study Samples Are Too Small to Produce Sufficiently Precise Reliability Coefficients.
In a survey of journal articles, test manuals, and test critique books, the author found that a mean sample size (N) of 260 participants had been used for reliability studies on 742 tests. The distribution was skewed because the median sample size for the total sample was only 90. The median sample...
| Publicado en: | Journal of General Psychology Vol. 130; no. 2; pp. 117 - 130 |
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| Formato: | Artículo |
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Taylor & Francis Ltd
April 2003
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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=510238730&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 510238730 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: April 2003 vid: 130 iid: 2 pid: 58221 pub: Taylor & Francis Ltd artinfo: ui: 510238730 10.1080/00221300309601280 ppf: 117 ppct: 13 formats: fmt: – @attributes: type: T – @attributes: type: P size: 861KB tig: atl: Study Samples Are Too Small to Produce Sufficiently Precise Reliability Coefficients. aug: au: Charter, Richard A. su: Psychological techniques Psychology -- Statistical methods Confidence intervals sug: subj: Psychological techniques Psychology -- Statistical methods Confidence intervals ab: In a survey of journal articles, test manuals, and test critique books, the author found that a mean sample size (N) of 260 participants had been used for reliability studies on 742 tests. The distribution was skewed because the median sample size for the total sample was only 90. The median sample sizes for the internal consistency, retest, and interjudge reliabilities were 182, 64, and 36, respectively. The author presented sample size statistics for the various internal consistency methods and types of tests. In general, the author found that the sample sizes that were used in the internal consistency studies were too small to produce sufficiently precise reliability coefficients, which in turn could cause imprecise estimates of examinee true-score confidence intervals. The results also suggest that larger sample sizes have been used in the last decade compared with those that were used in earlier decades. 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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