International Youth Development Study

About the International Youth Development Study

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    What is IYDS?

    The International Youth Development Study (IYDS) is a long-term study that looks at the development of healthy and problem behaviours among young people in the state of Victoria, Australia  and the state of Washington, United States.  IYDS is one of the first studies designed to examine whether or not differences in Australian and American cultures and schools affect youth development. The study began in 2002.   The original sample included approximately 1000 students at each of three year levels in both Victoria and Washington, giving a total of nearly 6000 participants.  The study continues to follow-up participants into young adulthood.