Nearly 30 percent of elementary and junior high school students find it too noisy to concentrate on study during class, according to a government survey released Saturday.

The survey also shows that 26.2 percent of the students acknowledged their tendency toward extreme anger and violence, while 35.2 percent of mothers said they found it difficult to scold their children effectively. Nearly 40 percent of the mothers surveyed wanted to rely on schools to take care of their children.

The Management and Coordination Agency survey was conducted in September 1999 on 3,000 school children ranging from the third grade of elementary school to seniors at junior high school, as well as 3,000 parents. Roughly 75 percent of them responded.

The poll was the first of its kind by the agency and was mainly intended to investigate student values. Its findings highlight the "collapsed class" phenomenon, which refers to a breakdown in student discipline combined with teachers' lack of authority, a tendency that is increasingly becoming a major social problem.

Around 28 percent of the students said they often continued talking to their friends during class, even after being scolded by a teacher.

As to relations with parents, 78.6 percent of the students said they were understood by their parents.

More than two thirds of the students said they were willing to work and study hard, and 92.5 percent said they wanted to become a person who could understand other people's feeling.