Graduate Institute of Medical Sciences, Taipei Medical University, Taiwan.
J Adv Nurs. 2010 May;66(5):1142-50. doi: 10.1111/j.1365-2648.2009.05224.x. Epub 2010 Mar 9.
This paper is a report of psychometric testing of the Arm Exercise Promotion Scale.
Patients with breast cancer having mastectomy are taught postoperative arm exercises during hospitalization; however, clinical observations suggest that patients infrequently practise them. It is important to develop an instrument that can be easily applied to evaluate women's motivation for arm exercises.
An instrument validation design with a cross-sectional survey was conducted during 2008-09. The previously developed 15-item Likert-type Arm Exercise Promotion Scale was further tested for test-retest reliability, internal consistency reliability, theoretically supported construct validity, and concurrent validity. A total of 94 patients with breast cancer were recruited to the study.
The Arm Exercise Promotion Scale has satisfactory internal consistency reliability (Cronbach's alpha 0.88) and a test-retest reliability of 0.90. Three theoretically supported factors were abstracted by principal component analysis: perceived benefits, learning support and situational support. These factors were inter-correlated and statistically significantly correlated with arm exercise behaviour, indicating concurrent and construct validity.
There is strong evidence to further support the Arm Exercise Promotion Scale as a valid instrument in assessing factors which promote arm exercises with patients with breast cancer. Future longitudinal clinical studies using this scale could add knowledge about the experiences of carrying out arm exercises in patients with breast cancer across time.
本文报告了手臂运动促进量表的心理计量学测试结果。
接受乳腺癌根治术的患者在住院期间会被教授术后手臂运动，但临床观察表明，患者很少进行练习。开发一种能够轻松评估女性手臂运动动机的工具非常重要。
在 2008-09 年期间进行了仪器验证设计的横断面调查。对先前开发的 15 项李克特式手臂运动促进量表进行了进一步的测试，以评估其重测信度、内部一致性信度、理论支持的结构效度和同时效度。共招募了 94 名乳腺癌患者参加研究。
手臂运动促进量表具有令人满意的内部一致性信度（克朗巴赫的 alpha 0.88）和 0.90 的重测信度。通过主成分分析提取了三个理论支持的因素：感知益处、学习支持和情境支持。这些因素相互关联，并与手臂运动行为呈统计学显著相关，表明具有同时和结构效度。
有强有力的证据进一步支持手臂运动促进量表作为评估促进乳腺癌患者手臂运动的因素的有效工具。未来使用该量表的纵向临床研究可以增加有关乳腺癌患者随时间进行手臂运动的经验的知识。
