Statistical conclusion validity and type IV errors in rehabilitation research.
The incidence of type IV errors was examined in 71 rehabilitation research studies, including a two-way analysis of variance with a statistically significant interaction. The interpretation of the significant interaction was examined to determine whether it qualified as a type IV error. A type IV er...
| Publicado en: | Archives of Physical Medicine & Rehabilitation Vol. 73; no. 2; pp. 121 - 126 |
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| Autor principal: | |
| Formato: | Journal Article |
| Publicado: |
W B Saunders
1992 Feb
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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=ccm&AN=107482644&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107482644 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 00039993 1XL jtl: Archives of Physical Medicine & Rehabilitation issn: 00039993 maglogo: N pubinfo: dt: 1992 Feb vid: 73 iid: 2 pid: 1351 pub: W B Saunders place: Philadelphia, Pennsylvania artinfo: ui: 107482644 1992137795 NLM1543405 107482644 ppf: 121 ppct: 5 formats: tig: atl: Statistical conclusion validity and type IV errors in rehabilitation research. aug: au: Ottenbacher KJ affil: State Univ New York Buffalo, 435 Kimball Tower, Main St, Buffalo, NY 14214 sug: subj: Research Validity Statistics Analysis of Variance ab: The incidence of type IV errors was examined in 71 rehabilitation research studies, including a two-way analysis of variance with a statistically significant interaction. The interpretation of the significant interaction was examined to determine whether it qualified as a type IV error. A type IV error was defined as the incorrect interpretation of a correctly rejected null hypothesis. Statistically significant interactions were classified in one of the following categories: (1) correct interpretation,(2) cell mean interpretation, (3) main effect interpretation, or (4) no interpretation. Interpretations classified as cell means or main effects were considered type IV errors. The analysis revealed that 21% of the interactions were correctly interpreted and 63% of the interactions were classified as type IV errors. The remaining 16% of the studies showed a statistically significant interaction but no interpretation. The implications of statistical conclusion validity and type IV errors are discussed, and methods to eliminate or reduce the incidence of type IV errors in rehabilitation research are presented. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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