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Table 1 Data quality, internal consistency reliability, construct validity

From: Psychometric properties of the Press Ganey® Outpatient Medical Practice Survey

   Correlationsa
%Floor %Ceiling Skew %NA Scale PG23 PG24
Access, α = 0.79 0.05% 45.6% −1.3 0.5% 0.49 0.51 0.46
 PG1 Ease of getting clinic on the phone 0.70% 57.0% −1.6 3% 0.62 0.36 0.32
 PG2 Convenience of office hours 0.20% 59.1% −1.3 1.10% 0.64 0.40 0.36
 PG3 Ease of scheduling appointment 0.70% 65.1% −1.9 1.10% 0.66 0.40 0.37
 PG4 Courtesy of staff in registration area 0.20% 78.5% −2.5 1.40% 0.49 0.46 0.41
Moving through visit, α = 0.88 0.98% 49.9% −1.6 1.62% 0.75 0.50 0.45
 PG5 Informed of any delays 1.80% 57.9% −1.7 8.60% 0.75 0.49 0.43
 PG6 Wait time at clinic 2.10% 55.4% −1.5 2.30% 0.75 0.46 0.42
Nurse/Assistant, α = 0.89 0.13% 73.0% −2.3 1.48% 0.82 0.60 0.51
 PG7 Friendliness of nurse 0.10% 79.6% −2.5 1.70% 0.82 0.56 0.47
 PG8 Concern nurse showed for problem 0.30% 73.9% −2.2 2.60% 0.82 0.58 0.50
Care Provider (CP), α = 0.96 0.12% 64.4% −3.0 0.55% 0.75 0.69 0.77
 PG9 Friendliness of CP 0.30% 84.1% −3.3 0.80% 0.82 0.61 0.65
 PG10 Explanations provided for problem 0.50% 80.4% −2.9 1.10% 0.88 0.61 0.66
 PG11 Concern for your questions 0.70% 80.4% −3.1 1.30% 0.90 0.62 0.69
 PG12 Efforts to include you in treatment 0.70% 79.6% −3.0 2.10% 0.88 0.61 0.67
 PG13 Info. about medications (if any) 0.60% 77.2% −2.7 11.40% 0.84 0.60 0.63
 PG14 Instructions for care (if any) 0.60% 76.7% −2.6 5.60% 0.83 0.61 0.64
 PG15 Understandable explanations 0.30% 83.3% −3.3 1.50% 0.81 0.59 0.61
 PG16 Time spent with you 0.60% 76.3% −2.6 1.20% 0.80 0.60 0.63
 PG17 Your confidence in CP 0.80% 83.2% −3.5 1.30% 0.88 0.62 0.75
 PG18 Likelihood of recommending CP 1.30% 83.0% −3.4 1.90% 0.86 0.63 0.80
Personal Issues, α = 0.89 0.06% 67.6% −2.0 1.06% 0.68 0.73 0.68
 PG19 Staff protected your safety 0.20% 75.0% −2.2 4.70% 0.74 0.57 0.50
 PG20 Our sensitivity to your needs 0.50% 75.0% −2.6 2.20% 0.76 0.73 0.71
 PG21 Our concern for your privacy 0.20% 76.7% −2.3 3% 0.81 0.64 0.58
 PG22 Cleanliness of our practice 0.10% 80.1% −2.3 2.60% 0.75 0.59 0.55
Total Score, α = 0.95 0.01% 29.3% −1.7 0.00% -- -- --
  1. aScale refers to correlation of each item with its scale, adjusted for removing the current item. Since the correlation of a scale with itself is 1, the average inter-item correlations within the scale is provided. PG23 is “How we took care of you”, and PG24 is “Likelihood of recommending” from the overall assessment domain