As the key health care providers in school settings, the school nurses' asthma management efficacy is crucial to children's health and their continued participation in school learning activities. This article describes the psychometric testing of the asthma management efficacy scale (AMES) for use with school nurses. A cross-sectional survey design was used to assess the asthma management efficacy of 60 school nurses in Taipei. Taiwan. Factor analysis resulted in four factor domains including asthma medication administration, asthma pattern identification. school management behaviour. and monitoring peak expiratory flow rate which explained 76.4% of the variance in school nurses' asthma management efficacy. The school nurses experience in performing school asthma management activities was positively correlated to their asthma management efficacy (r = 0.33, p <0.05). School nurses who had experience with the inhaled asthma medicines had significantly higher efficacy scores on the medication administration subscale (t = -2.89, p<0.01) than did the school nurses who lacked this experience. School nurses who had experience in using peak expiratory flow meters had significantly higher efficacy scores on the total AMES (t = -1.90, p <0.05) and on the monitoring peak expiratory flow rate subscale (t = -5.37,p < 0.001) than the school nurses who lacked this experience. Given the need to have nurses who are well prepared to provide asthma care in school settings. implications for nursing education, practice. and further research are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved
