QUESTIONS about sex, pornography and abortion are to be directed at 11-year-old pupils in a survey. The Family Planning Association's Youth Sexuality Study, conducted every five years since 1981, will expand to include Form One students in October. Previous surveys have polled thousands of students from Form Three to Form Seven, but an association working group has decided to quiz younger children on their sexual experiences. 'Children are having their sexual experiences at a younger age; look at the case of the 14-year-old girl who has AIDS,' association assistant director Mariana Law Po-chu said. 'We will send details of the survey to [randomly-selected] schools to see their reactions. Then we will send interviewers to the schools.' The 1991 report found falling numbers of 13-to 19-year-olds had correct information about sex and pregnancy, although more were kissing, caressing and having sex. The average age for a first date was 13. About 4,000 students will be asked to answer multiple-choice questions, devised by the working group. 'We have to be able to detect the trends of youths' problems,' Ms Law said. The two-part study includes an 'out-of-school' group of 17-to 27-year-olds. Investigators had already begun polling some of the 7,000 households to gauge ex-students' attitudes towards sex and family relations, she said. The report would help direct the association's new two-year publicity focus on Family Sex Education to be launched in November. 'Recently, we've identified some of the problems of teenagers - pre-marital sex, AIDS, abortions or sexually transmitted diseases - which are all due to lack of sex education,' Ms Law said. 'According to our research, parents expect the schools to do more sex education, but the role of parents is important. We have to equip them with the knowledge and attitude to ease their embarrassment.'