[Evaluation of training programs for purchasing and using pesticides]. / Valutazione dei corsi per l'abilitazione all'acquisto ed uso dei fitofarmaci.

ABSTRACT

Courses to enable farmers to use pesticides are an ideal opportunity to implement prevention programs. The aim of this study was to evaluate the efficacy of the courses and to define parameters to validate the teaching methods used. The population consisted of 307 individuals who followed the courses during 1991 in the province of Viterbo. A multiple choice questionnaire was administered before and after the course. A knowledge coefficient (KC) was considered as an indicator of knowledge improvement gained by the course. Wilcoxon's non-parametric test was used to compare pre- and post-test scores. A multivariate logistic model was designed to assess the effect of descriptive variables (age, educational level, years of work in agriculture, etc.) on KC. Post-test scores were significantly higher than pre-test scores and the mean KC was 60%, suggesting a general efficacy of the courses. A marked effect of age and educational level on KC was observed KC values decreased with increase in age and with decrease in educational level. It is recommended to vary the courses according to age and educational level in view of the high proportion of older subjects and the low educational level (about 50%). Active learning methods should also be used as far as possible.