ISSN : 1229-0718
This study is attempt to examine the psychological trait of elective mutism by psychological test. The subjects were 8 boys and 9 girls from 3 to 17 years old. The results are summarize in three. 1. They were very late onset of speech. 2. All the subjects have some degrees of mental handicap in verbal IQ, but some of them have not mental handicap in performance IQ. 3. Sores trams of developmental delay are shown in their play, motor development and academic perfomance.