Standardisation of Behavioural Inhibition Questionnaire Parent form – Tamil Version

Background: The Behavioural Inhibition Questionnaire is a tool for assessing Behaviour Inhibition (BI) among children, and there is no instrument to evaluate BI for the Tamil-speaking population. The purpose of this study is to assess the validity and reliability of the Behavioural Inhibition Questionnaire (Parent form) in Tamil.  Method: The Behavioural Inhibition Questionnaire (Parent form) has undergone the forward and backward translation process. Expert reviews were conducted to establish the Content Validity Index (CVI). The BIQ (Parent form) Tamil version was administered to a sample of 150 parents of children aged 3 to 7 years. Data were collected and analysed to establish Internal consistency and Content validity.  Result: The internal consistency reliability was determined using Cronbach’s alpha. The value >.70 shows an acceptable internal consistency. The content validity was established by taking the reviews of experts. It was quantified using the Content Validity Index (CVI) of 0.864, indicating good Content validity.  Conclusion: The Tamil version of the Behavioural Inhibition Questionnaire (Parent form) has acceptable Internal consistency and good Content validity.