Psychometric evaluation of a Patient Satisfaction Survey Questionnaire to assess advanced practice nurse ambulatory services in primary care.

Aim: To determine the construct validity and test-retest reliability of the Patient Satisfaction Survey Questionnaire (PSSQ).

Background: Advanced practice nurses (APNs) co-manage patients with non-communicable diseases (NCDs) with public primary care physicians in Singapore. The original Nurse Practitioner Satisfaction Survey (NPSS) instrument was adapted (renamed as PSSQ) to assess satisfaction with APN service.