social smile, and free or bubble play. Modules 3 or 4 can include reciprocal play and communication, exhibition of empathy, or comments on others' emotions. A major difference between modules 3 and 4 is the reliance of module 4 primarily on questions and verbal responses (as opposed to actions during play). Revision A revision, the Autism Diagnostic Observation Schedule, Second Edition (ADOS-2), was released by WPS in May 2012. It includes updated norms, improved algorithms for Modules 1 to 3, and a new Toddler Module (T) that facilitates assessment in children ages 12 to 30 months. Modules after revision Toddler Module (12–30 months - does not speak in phrases) This module consists of eleven primary activities and four secondary tasks. At such a young age, diagnosis is difficult to make. So the clinical observations are very important in this module for further assessments. The examiner's assessment is based more on different areas to be aware of, rather than any "cutoff" points. Module 1 (31 months and older children- do not speak consistently in phrases) This module consists of ten activities Free play Response to name Response to joint attention Bubble play Anticipation of a routine with objects Responsive social smile Anticipation of a social routine Functional and symbolic imitation Birthday party Snack Module 2 ( children of all ages, who speak in phrases, but have not yet developed fluent verbal language) This module consists of fourteen activities Construction task Response to name Make-Believe play Joint interactive play Conversation Response to joint attention Demonstration task Description of a picture Telling a story from a book Free play Birthday party Snack Anticipation of a routine with objects Bubble play Module 3 ( children who have a fluent language and younger adolescence) This module consists of fourteen activities Construction task Make- Believe play Joint interactive play Demonstration Task Description of a picture Telling a story from a book Cartoons Conversation and reporting Emotions Social difficulties and annoyance Break Friends, relationships and marriage Loneliness Creating a story Module 4 (adolescents and adults with fluent speech) This module consists of ten- fifteen activities (those with * are optional) Construction task * Telling a story from a book Description of picture * Conversation and reporting Current work or school * Social difficulties and annoyance Emotions Demonstration task Cartoons * Break Daily living * Friends, relationships and marriage Loneliness Plans and hopes Creating a story Diagnostic accuracy