A pilot study on the Spanish version of the Psychosocial Adjustment to Illness Scale (PAIS-SR) with carers of people with Parkinson's disease.

Five of the seven domains presented floor effect (71.42%), and only one presented ceiling effect (14.28%). The internal consistency of the scale and domains showed acceptable values (over 0.7). The content validity of the Spanish version seemed satisfactory with positive comments in general from participants.