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Table 3 Measurement characteristics of three inpatient satisfaction questionnaires used in psychiatric hospitals

From: Satisfaction of patients hospitalised in psychiatric hospitals: a randomised comparison of two psychiatric-specific and one generic satisfaction questionnaires

  Saphora-Psy Perceptions of Care Picker P-value
  (n = 226) (n = 240) (n = 262)  
Response rate 48.5 % 49.9 % 43.5 % 0.08
Completion time in minutes, mean (SD) 17.7 (12.6) 13.7 (11.0) 17.5 (13.6) 0.005
Mean proportion of missing responses per question 7.1 % 2.8 % 4.0 % 0.000
Mean proportion of highest responses per question (ceiling effect) 17.1 % 41.9 % 36.3 % 0.000