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Hula, William D., PhD; Doyle, Patrick J., PhD; Austermann Hula, Shannon N., PhD
Archives of physical medicine and rehabilitation, 03/2010, Letnik: 91, Številka: 3Journal Article, Conference Proceeding
Abstract Hula WD, Doyle PJ, Austermann Hula SN. Patient-reported cognitive and communicative functioning: 1 construct or 2? Objectives To examine the dimensionality of scales for measuring patient-reported cognitive and communicative functioning in a sample of stroke survivors and to evaluate the consequences for measurement of treating them as a single, undifferentiated construct. Design Secondary analysis of existing cross-sectional data. Setting Data were collected in outpatient rehabilitation clinics and in the community. Participants Unilateral stroke survivors (N=316) 3 months or more postonset referred for participation in research. Interventions Not applicable. Main Outcome Measures The Burden of Stroke Scale cognition and communication domain scales were evaluated by using confirmatory factor analysis, Rasch analysis, and tests of differential item functioning (DIF). To evaluate the impact of multidimensionality on the measurement of individual patients, separately estimated cognition and communication scores were compared. Combined and separately estimated scores were also examined for responsiveness to group differences in the presence of cognitive and communicative impairment. Results Factor analysis and Rasch model fit analyses equivocally supported the unidimensionality of the item pool. DIF analyses between participants with right versus left hemisphere stroke suggested multidimensionality. Scaling cognition and communication items separately resulted in different person scores for a significant number of patients and greater responsiveness to group differences. Conclusions Patient-reported scales assessing communication along with more general cognitive activities may possess an internal structure that is inconsistent with a unidimensional measurement model with potential negative consequences for measurement.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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