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Table 4 Internal consistency, Test–retest reliability and validity on 150 Adhesive Capsulitis patients

From: Urdu translation of Shoulder Pain and Disability Index (SPADI) and its validity and reliability on adhesive capsulitis patients

Internal Consistancy: Cronbach alpha

 Pain (Subscale)

0.882

 Disability (Subscale)

0.915

 Urdu-SPADI (Total)

0.940

Test–Retest Reliability: Intra Class correlation (ICC)

 Pain (Subscale)

0.95

 Disability (Subscale)

0.95

 Urdu- SPADI (Total)

0.89

Pearson Correlation of week 1 and week 2 readings

 Pain (Subscale)

0.914

 Disability (Subscale)

0.924

 Urdu-SPADI

0.957

Convergent /Concurrent Validity (Correlation)

 VAS

r = 0.68

 NPRS

r = 0.65

 Quick Dash

r = 0.79

 SF-12

r = 0.40

  1. Abbreviations: VAS Visual Analogue Scale, NPRS Numeric Pain Rating Scale, Quick Dash Quick Disabilities of Arm, Shoulder and Hand, SF-12 12-Item Short Form Survey