2. Methodology
2.1 participants
Of the boys and girls aged 7–11 years who consulted or referred the outpatient clinics of psychiatry or mental
health centers in Shiraz, cause of showing intense aggressive behaviors, were registered during 2month. A total
of 50 families were approached and 30 of these children were randomly and equally assigned either to a control
or an experimental group. Parents gave consent before Art therapy Intervention Program. Participants who
attended a minimum of seven therapy sessions and for whom both pretest and posttest data were available
included in the final analyses.
2.2 Outcome Measures
Children inventory of anger. The ChIA is a 39-item measure that operationalizes anger according to the
conceptualization set forth by Ellis in Rational Emotive Behavior Therapy. To measure the beliefs most often
associated with anger, the ChIA yields a total score and subscale scores: Frustration, Physical Aggression, Peer
Relationships, and Authority Relations .The test may be used for youth aged 6–16. As Flanagan and allen (2005)
noted, internal consistency reliability For a sample of 1604 youth, are 0.95 for the total scale, and 0.85–0.86 for
each of the four subscales, which are impressive values. Test–retest reliability is 0.75 for the total scale, and
ranging from 0.65 to 0.75 for the subscales. Content validity for the instruments is believed to be good, as
evidence by feedback from professionals using the scale and the Concurrent validity was established by