Skip to main content

Table 4 Correlation matrix table showing the internal consistency of KCAHW questionnaire

From: Knowledge about childhood autism among health workers (KCAHW) questionnaire: description, reliability and internal consistency

Correlation Matrix
  D 1A D 1B D 2A D 2B D 3A D 3B D 4A D 4B T A T B
D 1A 1.0000          
D 1B 0.9679 1.0000         
D 2A 0.3595 0.5230 1.0000        
D 2B 0.9207 0.9207 0.6124 1.0000       
D 3A 0.7926 0.7360 0.0000 0.7071 1.0000      
D 3B 0.7604 0.6397 -0.1231 0.6784 0.9594 1.0000     
D 4A 0.9916 0.9326 0.2408 0.8847 0.8341 0.8224 1.0000    
D 4B 0.9207 0.9207 0.6124 1.0000 0.7071 0.6784 0.8847 1.0000   
T A 0.9885 0.9577 0.3297 0.9231 0.8703 0.8292 0.9867 0.9231 1.0000  
T B 0.9805 0.9632 0.4063 0.9520 0.8568 0.8090 0.9698 0.9520 0.9953 1.0000
  1. Number of Cases = 50.0
  2. Reliability Coefficients – 10 items
  3. Alpha = 0.92 Standardized item alpha = 0.97
  4. D – Domains, T – Total, A – First time administration of KCAHW questionnaire
  5. B – Second time administration of KCAHW questionnaire