The aim of the present study was to translate and assess the reliability and validity of the Theory of Mind task battery designed by Hutchins & Prelock 2010, for use as an assessment of the theory of mind in normally-developing children, such behavior has implications on many aspects of children's life, such as social competence, peer acceptance and early success in school. 367 normally-developing monolingual children ranging in age from 3 to 12 years participated. A back to back translation method was used with the theory of mind task battery. A subset of 49 children participated in a retest 10 to 14 days after the initial assessment. Overall results indicated that the Arabic adaptation of the test can be considered reliable for assessing theory of mind within children. However, analyses of item difficulty indicated some differences between the Arabic adaptation of the theory of mind task battery and the English test, therefore, the arrangement of the tasks was changed and task D (Line of sight) was moved and became the last task tested because it was the most difficult for all ages