Language Evaluation Scale Trivandrum (LEST 3-6 years) – Development and Validation.

ABSTRACT

Language Evaluation Scale Trivandrum (LEST3-6 years) with 31-items, was validated against ‘extended REELS’ with a community sample-606 children (3-6yrs). One item and two item delay as ‘LEST delay’ showed a sensitivity of (81%, 47%); specificity (68%, 94%), PPV (12%, 31%); NPV (98%, 97%) and accuracy (68.5%, 92%), respectively. LEST (3-6years) is a simple, valid, community screening tool.