Ontwikkeling & evaluatie van een programma ter versterking van psychische weerbaarheid en preventie van depressieve symptomen bij kinderen van 10-12 jaar.

Different questions have to be covered to assure the feasibility of the project. Phase 1. Updating the identification of hypothetical effect predictors: 3 months Already a provisional list of hypothetical effect predictors is available from earlier studies in the 90's. The further screening of the sources will provide an updated and more completed version of the list. Phase 2. Development of a reliable coding system: 4 months The development of the questionaire for the coding system is based on related instruments developed and used in earlier review studies carried out by the Research Group, among others in collaboration with the NIGZ (Bosma & Hosman, 1990; Veen, Vereijken et al., 1994; Hosman & Veltman, 1995; De Vries, Hosman & Engels, 1995). Moreover, the consultation phase with experts will result in a coding system with proven inter-rater reliability and content validity. Phase 3. Finding the studies for validation of hypothetical effect predictors: 1 month The availability of articles is not a matter of concern due to the current amount of articles (400) already collected. Further search and inclusion criteria of the studies will take place in this phase. Phase 4. Coding the studies from phase 3: 6 months The operationalised coding system provides ordinal scoring and facilitates the coding task. Phase 5. Analysis of the coded data: 6 months The support of statistical advisers and the expertise of the team involved in the project will provide sufficient knowledge to carry out the meta-analysis. Professor Hosman is part of several international experts groups of prevention experts and has many contacts with prevention researchers to safeguard thier involvement in the Delphi panel. During the last years he has been involved in different Delphi studies such as the National scenarios study for Mental Health (1995), Kopp Project (1988), and has published on the Delphi method (de Koning, Lindt & Hosman, 1987). Phase 6. Comparisons between outcomes and PREFFI 1.0:1 month. No problems expected. Phase 7. Comparisons between outcomes of this study and the NIGZ study: 1 month Collaborations between the project leaders of both studies (prof. Hosman is also involved in the NIGZ study) have provided already the agreement to bring the results of both projects together at the end to revise the new version PREFFI 2.0. Phase 8. Translation of the results into recommendations and articles: 4 months The study is expected to last in total time 26 months and has got the approval of the Research Committee Clinical Psychology, part of the Nijmegen Rutten Institute for Research in Psychology.