Effectiveness of an Intervention to Increase Construction Workers' Use of Hearing Protection

摘要

In this project we tested the effectiveness of a theory-based intervention (video, pamphlets, and guided practice session) to increase the use of hearing protection devices (HPDs) among Midwestern construction workers and a national group of plumber/pipefitter trainers. Posttest measures were collected l0--l2 months fOl- lowing this intervention. Pender's Health Promotion Model (l987) provided the conceptual basis for development of the training program. A total of 837 high- noise-exposed workers were included in the analysis: 652 regional Midwestern construction workers and l85 national plumber/pipefitter trainers. Effectiveness of the intervention was determined through the sequence of analyses recom- mended by Braver and Braver (l988) for the Solomon Four-Group Design. Analysis of variance and covariance of postintervention use and intention to use HPDs and a meta-analytic test were done. These analyses indicated that the inter- vention significantly increased use of HPDs but had no effect on intention to use HPDs in the future. Pretesting had no effect on use. Actual or potential applica- tions of this research include guidance in the development of successful theory- based interventions to increase use of HPDs.