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Table 2 Psychometric properties of professional identity measures

From: Professional identity measures for student health professionals – a systematic review of psychometric properties

Measure Reliability Validity
Test-retest Internal consistency Content Structural Cross-cultural
Clarity of Professional Identity   α = 0.90a [19]
α = 0.76a [16]
2 out of 3 supported hypotheses [19] CFA
GFI = 0.94a [16]
 
Macleod Clark Professional Identity scale   α = 0.79a [1]
α = 0.78a [16]
α = 0.83a [26]
  EFA
FA = 0.46–0.73a [1]
PCA = 0.50–0.79a [26]
CFA
GFI = 0.71 [16]
 
Nurse Self Concept Questionnaire ρ = 0.73–0.83* [20} α = 0.90a [20]
α = 0.89a [27]
α = 0.95a [28]
All items retained [27] CFA
GFI = 0.91a [20]
CFI = 0.91a [27]
CFI = 0.91a [28]
GFI = 0.87a [28]
Chinese [28]
Nigerian [27]
Nurses’ Professional Values Scale – Revised r = 0.76* [21] α = 0.92a [21]
α = 0.94a [16]
α = 0.90a [29]
α = 0.92a [30]
α = 0.93a [31]
100% agreement [21]
CVI = 0.90a [29], 0.93a [30]
EFA
PCA = 0.46–0.77 [21]
PCA = 0.48–0.84a [29]
PCA = 0.51–0.76a [31]
CFA
CFI = 0.89 [21]
NFI = 0.87 [21]
GFI = 0.74 [16]
Chinese [29]
Korean [31]
Turkish [30]
Professional Identity Five Factor Scale   H = 0.65–0.85a [22]   CFA
CFI = 0.90a [22]
 
Professional Identity Scale for Nursing Students r = 0.74* [23] α = 0.83a [23] Deemed satisfactory [23] EFA
PCA = 0.48–0.69* [23]
 
Professional Self Identity Questionnaire   α = 0.93a [24]    
The Values Survey   α = 0.64 [25]
α = 0.81a [16]
  EFA
PCA = 0.44–0.84 [25]
CFA
GFI = 0.89 [16]
 
  1. EFA Exploratory factor analysis, CFA Confirmatory factor analysis, GFI Goodness of fit, CFI Comparative fit index, CVI Content validity index, NFI Normative fit index, FA Factor analysis, PCA Principal component analysis
  2. astatistical result at an acceptable or better level, as reported in original publication α Cronbach’s alpha