A study was designed and conducted by high school students to analyse the effects of age, sex, and family composition on students' preferences for the sex and birth order of their offspring. The study was based on the observation that sex preselection technology will be a reality in the near future. The results showed that boys responded differently than girls. Typical ‘boy’ and ‘girl’ responses were identified, but these tended to disappear with age. Family composition had a minimal effect on sex preferences, but it provided a possible pattern on which a subject could make a judgement on sex preferences. The study further provided the students with an opportunity to become involved in a socially relevant issue, with many of the polled students becoming equally involved. Other social questions were raised by the students.
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