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Table 2 Reliability analysis: corrected item-total correlation of the 8 items of the Malay Child-OIDP and Cronbach’s Alpha coefficients

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

  Corrected Item-Total Correlation Cronbach’s Alpha if Item Deleted
Eating .39 .78
Speaking .40 .77
Cleaning teeth .41 .78
Relaxing .60 .75
Emotional stability .54 .75
Smiling .46 .77
Doing schoolwork .58 .75
Socialising .64 .74
Alpha value 0.79
Standardised items alpha 0.80