Objectives: The aim of this study was to investigate the efficiency of educational Abstract  intervention based on PRECEDE educational method in the promotion of quality of life among the aged under the coverage of Tehran Cultural House of Aged People 2009. The population of the aged [people] is increasing in all parts of the world even in developing countries. The increase of the number of the aged has created an international trend to increase the quality of life for them. The purpose of performing this project is to study the impact of educational interference based on PRECEDE model in promoting the quality of life of the aged.

Methods & Materials: This semi-empirical research was performed on 54 aged people who were under the coverage of Tehran Cultural House for the Aged in 2009. The aged people were put in two groups of test and control by using the method of continuous sampling. For educational sampling, the designed questionnaire based on PRECEDE model under the name of PRECEDE model and based on the components of PRECEDE theory were used. In order to assess the quality of life, the WHO questionnaire of the quality of life was used and the quality of life of the aged people in two groups before and after one month from the educational intervention were compared.

Results: The average total score of the components of PRECEDE model including predisposing factors (awareness and attitude), enabling factor (skills), reinforcing factors (personal satisfaction and encouragement by companions), behavioral factors (healthy behaviors) in the test group changed as compared with the control group with a pless than 0.05. Consequently, opposite to the group control, the quality of life of the aged people of test group showed a meaningful difference before and after educational intervention with a p quality less than 0.05.

Conclusion: It seems it will be possible to increase the quality of life of the aged with educational intervention through PRECEDE model.