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Table 1 Reliability analysis: inter-item correlation coefficients for the Malay-Child IODP

From: A Malay version of the Child Oral Impacts on Daily Performances (Child-OIDP) index: assessing validity and reliability

  Eating Speaking Cleaning teeth Relaxing Emotional stability Smiling Doing schoolwork Socialising
Eating 1.00        
Speaking .13 1.00       
Cleaning teeth .26 .13 1.00      
Relaxing .36 .33 .27 1.00     
Emotional stability .33 .38 .26 .38 1.00    
Smiling .22 .22 .25 .40 .31 1.00   
Doing schoolwork .27 .33 .31 .47 .38 .35 1.00  
Socialising .24 .41 .42 .49 .40 .37 .55 1.00