Reliability and validity of the Arabic translation of the palliative performance scale.

Objective: The aim of this study was to translate the Palliative Performance Scale (PPSv2) into Arabic and to test the reliability and validity of the PPS Arabic translation (PPS-Arabic).

Method: The PPSv2 was translated into Modern Standard Arabic using a forward-backward method. Inter-rater and intra-rater reliabilities were tested in a pilot study that included 20 patients.