Acknowledgements

We would like to thank everyone in Estonia, especially Kersti Jakobi and Liina Kadari, and Kadi Liik at the psychology department of Tallinn University for all of their assistance in this work. Part of the work was supported by the Colin Creativity Award of the first author, and to Clark University faculty travel fund and the Hiatt Fund to the second author. The authors were also awarded the Lee Gurel Prize of Clark University for this work in 2002. A preliminary version of this chapter was presented at the 5th International Baltic Psychology Conference, Tartu, August, 23, 2002.