Table 2 Reliability analysis and criterion validity.

From: Assessing the role of dryness and burning sensation in diagnosing laryngopharyngeal reflux

 

Cronbach’s alpha

Split-half reliability

Test–retest reliability

RSIa

RSS-12a

RSI

0.788

0.841

0.956

/

/

RSI-10

0.800

0.851

0.967

0.981

0.790

RSS-12

0.811

0.879

0.817

/

/

RSS-13

0.825

0.888

0.817

0.761

0.987

  1. RSI, Reflux Symptom Index; RSI-10, Reflux Symptom Index-10; RSS-12, Reflux Symptom Score-12; RSS-13, Reflux Symptom Score-13.
  2. aAccording to Spearman’s correlation coefficient.
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