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The Scale for Contraversive Pushing: A Reliability and Validity Study

Department of Geriatric Rehabilitation, Florence, Italy

Matteo Paci, PT, MSc

Department of Rehabilitation Medicine, Prato Hospital, Prato, Italy, matteo.paci{at}applicazione.it

Lucio A. Rinaldi, PT

Motion Analysis and Neurorehabilitation Laboratory, Department of Critical Care Medicine and Surgery, Unit of Gerontology and Geriatric Medicine, University of Florence, Italy

Objective. Pushing toward the hemiplegic side can interfere with mobility training after stroke. This study estimated the internal consistency, interrater reliability, and validity of the Scale for Contraversive Pushing (SCP).

Methods. Twenty-six patients with recent stroke were diagnosed with pusher behavior (PB). Two testers, randomly selected from 3 other examiners, independently assessed each patient using the SCP on the same day within 3 days of admission for rehabilitation. Cohen kappa coefficient was used to determine the agreement between the clinical and SCP diagnosis. The interrater reliability of the scale was estimated by calculation of the intraclass correlation coefficient. Cronbach’s alpha coefficient and Pearson’s coefficients were used to estimate the internal consistency of the scale and correlations between the subscores and the total score.

Results. The agreement between SCP and clinical diagnosis was very low when the original cutoff criterion for SCP diagnosis was used but was almost perfect with a modified criterion. The interrater reliability was good to excellent with regard both to each sub-score and to the total score. The internal consistency was very high, along with correlations between subscores and total score of the scale.

Conclusions. The results provide support for use of the SCP based on its reliability and validity using a modified cutoff criterion to make a diagnosis of PB.

Key Words: Pusher syndrome • Assessment • Stroke • Reliability • Validity

Neurorehabilitation and Neural Repair, Vol. 20, No. 4, 468-472 (2006)
DOI: 10.1177/1545968306291849


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