Naslov
Rasch validation and comparison of Slovenian, Croatian and Italian versions of the Mini- BESTest in people with subacute stroke

Autori
Goljar, Nika ; Schnurrer-Luke-Vrbanić, Tea, Rudolf, Marko ; Banicek-Sosa, Ivanka ; Albensi, Caterina ; Burger, Helena ; Franchighoni, Franco

Izvornik
International journal of rehabilitation research (0342-5282) 40 (2017), 3; 31-39

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Postural balance ; stroke ; Mini-BESTest ; psychometrics.

Sažetak
We wished to verify by Rasch Analysis if the Mini-BESTest, a balance measure, confirms its main psychometric properties in people with subacute stroke undergoing rehabilitation in three different countries (Slovenia, Croatia, and Italy), and to examine the stability of item hierarchy and difficulty across the three national versions through a differential item functioning analysis (DIF). We investigated 159 subjects with subacute stroke consecutively admitted to three rehabilitation facilities after screening for an intensive, tailored rehabilitation program. Balance function was tested within 36 hours from admission, and after ∼ 25 days. As no DIF was found between admission and discharge data or among countries, all data were pooled. Rasch criteria for the functioning of rating scale categories were fulfilled. Concerning internal construct validity, all items except item #14 (Cognitive Get Up & Go ; infit value= 1.42) showed an acceptable fit to the Rasch model. The patient ability-item difficulty matching was very good. Reliability indices were high. The Principal Component Analysis of standardized residuals confirmed the unidimensionality of the test. Based on the item calibration, raw scores of the Mini- BESTest were transformed into linear estimates of dynamic balance and six statistically detectable levels of balance ability were defined. Good psychometric features of the Mini-BESTest were confirmed. The three different national versions showed stability in item hierarchy, indicating equivalence of their cross-cultural adaptations. Problems with item # 14 in these patients warrant further study.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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