이 연구는 지적장애학생과 일반학생의 주의집중에 따른 동시처리와 순차처리를 비교함으로 차이를 밝히고 지적장애학생의 동시차처리를 비교함으로써 지적장애학생의 주의집중 기능 향상과 그에 따른 정보처리 능력을 향상시키는 데 목적이 있으며, 결론은 다음과 같다. 첫째, 지적장애학생의 동시처리 과제 검색 반응시간은 일반학생의 반응시간보다 전반적으로 느리다. 세트 크기에 따른 지적장애학생의 동시처리 과제 검색 반응시간의 차이가 없다. 둘째, 지적장애학생의 순차처리 과제 검색 반응시간은 일반학생의 반응시간 보다 전반적으로 느리다. 세트의 크기에 따른 지적장애학생의 순차처리 과제 검색 반응시간을 비교할 때 세트의 크기가 작을수록 더 빠르다. 셋째, 지적장애학생의 동시처리 과제 검색 반응시간과 순차처리 과제 검색 반응시간을 비교해 볼 때, 동시처리 과제 검색 반응시간이 순차처리과제 검색 반응시간보다 더 빠르다.

The purpose of this study was to examine concentration-based simultaneous-sequential processing of intellectual disabilities students in comparison with those of without disabilities students, and determine potential difference between these two groups of students, so that it could contribute to improving attention function and information processing capacity of intellectual disabilities students. As a result, this study could come to the following conclusions: First, it was found that intellectual disabilities students tended to take longer time to search on the whole at simultaneous processing tasks than control. According to comparison of data on search response time at simultaneous processing tasks of intellectual disabilities students depending upon search set size, it was found that there was no significant difference. This finding means that search response time is not influenced by search set. Secondly, it was found that intellectual disabilities students tended to take linger time to respond to search on the whole at sequential processing tasks than without disabilities students According to comparison of data on search response time at sequential processing tasks of intellectual disabilities students depending on search set size, it was found that the smaller size of set was associated significantly with the shorter time to search. This finding shows that search set is effective in sequential processing task. Thirdly, according to comparison of search response time between simultaneous and sequential processing tasks in intellectual disabilities students, it was found that this group tended to take significantly shorter time to respond to search at simultaneous processing tasks than at sequential processing tasks.