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Table 2 Items of the IPQ-B and internal reliability

From: Measurement of acute nonspecific low back pain perception in primary care physical therapy: reliability and validity of the brief illness perception questionnaire

Items of the IPQ-B Scale means Cronbach’s α
  if item deleted if item deleted
Consequences 46 0.65
Timeline 45 0.72
Personal control 46 0.68
Treatment control 44 0.73
Identity 47 0.69
Concern 45 0.66
Coherence 45 0.70
Emotional response 45 0.63