The national survey of Finnish youth was conducted by the Research Institute of the School of Social Sciences (Yhteiskunnallisen Korkeakoulun Tutkimuslaitos) under the sponsorship of the Ministry of Education. The data consist of a two-stage sample drawn from the total Finnish population of both sexes in the age groups 10 through 29. Of the final sample drawn, 1,578 persons were personally interviewed. The total mortality of 21 % of the names selected was due to inaccuracy of addresses in census lists, migration, geographical inaccessibility, and general nonavailability. Those not at home were revisited at least twice before they were dropped from the interview list. The interview schedule was composed of both open-end and multiple-choice questions, and was pre-tested in a pilot survey. Some findings of the national survey have been published in "Työläisnuorison harrastustoiminta" (The Leisure Activities of Working Class Youth) by the present writers, Helsinki: Kustannusosakeyhtiö Tammi, 1956. A larger report "Nuorison harrastukset ja yhteisön rakenne" (The Leisure Activities of Youth and Social Structure) will be published in 1958.
2.
See e. g. Morton Deutsch , "Field Theory in Social Psychology" in Gardner Lindzey (ed.). Handbook of Social Psychology, Cambridge, Mass.: Addison-Wesley, 1954, Pp. 208-209.
3.
Agne Lundquist, Anpassning i hem och samhälle, Stockholm: dissertation 1955. Pp. 185 -186.
4.
George C. Homans, The Human Group, New York: Harcuurt, Brace and Company, 1950. Pp. 185-186.
5.
See footnote 3, Lundquist, loc. cit.
6.
William H. Whyte, JrIs Anybody Listening? New York: Simon and Schuster, 1952; an implication in this direction may be seen in Ch. 4, e. g. p. 75. Another writer says that the mass production of comic books "is a serious danger to the production of good inexpensive children's books". Fredric Wertham, "The Comics ... Very Funny!", reprinted from Saturday Review of Literature in Alfred McClung Lee and Elizabeth Briant (eds.), Social Problems in America, New York: Henry Holt and Company, 1949. Pp. 419-420.
7.
See e. g. Enk Allardt , "Drinking Noims and Drinking Habits", in Drinking and Drinkers, Helsinki: The Finnish Foundation for Alcohol Studies, 1957. Pp. 76-77. Also Touko A. Markkanen, On the Sociological Theory of Alcohol in Terms of the Unified Factor-Analysis Model, Helsinki: The Finnish Foundation for Alcohol Studies, 1958.
8.
Genevieve Knupfer , "Portrait of the Underdog", The Public Opinion Quarterly, 1917, Vol. XI. Pp. 103-114.
9.
Seymour Martin Lipset, Martin Trow and James Coleman, Union Democracy, Glencoe, Illinois: The Free Press, 1956. P. 416.
