The Development and Validation of DSM 5-Based AIIMS-Modified INDT ADHD Tool for Diagnosis of ADHD: A Diagnostic Test Evaluation Study.INCLEN Diagnostic Tool for Epilepsy (INDT-EPI) for primary care physicians: development and validation.Modeling clinical outcome of children with autistic spectrum disorders.

Diagnostic accuracy, reliability and validity of Childhood Autism Rating Scale in India.INCLEN Diagnostic Tool for Neuromotor Impairments (INDT-NMI) for primary care physician: development and validation.Development and validation of DSM-5 based diagnostic tool for children with Autism Spectrum Disorder.Diagnostic Accuracy of International Epidemiology Network (INCLEN) Diagnostic Tool for Autism Spectrum Disorder (INDT-ASD) in Comparison with Diagnostic and Statistical Manual of Mental Disorders-5 (DSM-5).INCLEN diagnostic tool for attention deficit hyperactivity disorder (INDT-ADHD): development and validation.CONCLUSIONS: INDT-ASD has high diagnostic accuracy, adequate content validity, good internal consistency high criterion validity and high to moderate convergent validity and 4-factor construct validity for diagnosis of Autistm spectrum disorder.

INDT-ASD has a 4-factor structure explaining 85.3% of the variance. The convergent validity with CARS (r = 0.73, P= 0.001) and divergent validity with Binet-Kamat Test of intelligence (r = -0.37 P=0.004) were significantly high. The internal consistency of INDT-ASD was 0.96. The concordance rate between the INDT-ASD and expert diagnosis for 'ASD group' was 82.52%. The overall diagnostic accuracy (AUC=0.97, 95% CI 0.93, 0.99 P<0.001) and validity (sensitivity 98%, specificity 95%, positive predictive value 91%, negative predictive value 99%) of INDT-ASD for Autism spectrum disorder were high, taking expert diagnosis using DSM-IV-TR as gold standard. RESULTS: 154 children (110 boys, mean age 64.2 mo) were enrolled. MAIN OUTCOME MEASURES: Psychometric parameters of diagnostic accuracy, validity (construct, criterion and convergent) and internal consistency. INDT-ASD and Childhood Autism Rating Scale (CARS) were administered in a randomly decided sequence by trained psychologist, followed by an expert evaluation by DSM-IV TR diagnostic criteria (gold standard). METHODS: Children aged 2-9 years were enrolled in the study.

SETTING: Four tertiary pediatric neurology centers in Delhi and Thiruvanthapuram, India. DESIGN: Diagnostic test evaluation by cross sectional design. N2 - OBJECTIVE: To develop and validate INCLEN Diagnostic Tool for Autism Spectrum Disorder (INDT-ASD). T1 - INCLEN Diagnostic Tool for Autism Spectrum Disorder (INDT-ASD): development and validation.

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