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Table 3 Correlations for convergent, divergent, and concurrent validity

From: Reliability and validity of the Spinal Appearance Questionnaire (SAQ) and the Trunk Appearance Perception Scale (TAPS)

  SAQ Appearance SAQ Expectations SAQ total score TAPS N
SRS 22-r
- Overall mean − 0.49** − 0.40** − 0.53** 0.48** 255
- Function − 0.40** − 0.20** − 0.37** 0.40** 255
- Pain − 0.37** − 0.24** − 0.37** 0.36** 255
- Self-image − 0.53** − 0.49** − 0.60** 0.50** 255
- Mental health − 0.28** − 0.31** − 0.34** 0.27** 255
- Satisfaction − 0.25** − 0.28** − 0.31** 0.26** 255
Job-related worries 0.33** 0.31** 0.38** − 0.33** 255
Social life-related worries 0.26** 0.38** 0.36** − 0.27** 255
Overall stress 0.51** 0.52** 0.60** − 0.51** 255
VAS (pain) 0.36** 0.27** 0.38** − 0.33** 255
Cobb angle 0.55** 0.10 0.44** − 0.51** 255
BMI 0.41** 0.11 0.34** − 0.35** 253
PANAS (mood) 0.27** 0.24** 0.30** − 0.26** 255
PHQ-9 (depression) 0.31** 0.30** 0.35** − 0.26** 255
FKS (body dysmorphic disorder) 0.26** 0.32** 0.33** − 0.24** 255
WHO-5 (well-being) − 0.38** − 0.24** − 0.38** 0.33** 133
PTQ (negative thinking) 0.08 0.21** 0.16* − 0.10 255
BFI-S (neuroticism) 0.16** 0.20** 0.21** − 0.12* 255
  1. Convergent validation = SRS-22r, job-related worries, social life-related worries, overall stress, VAS, Cobb angle
  2. Divergent validation = BMI
  3. Concurrent validation = PANAS, PHQ-9, FKS, WHO-5, PTQ, BFI-S
  4. *P < 0.05, **P < 0.01