Sechrist K R, Walker S N, Pender N J
School of Nursing, Northern Illinois University, DeKalb 60115.
Res Nurs Health. 1987 Dec;10(6):357-65. doi: 10.1002/nur.4770100603.
Initial psychometric evaluation of an instrument to measure perceived benefits of exercise and perceived barriers to exercise was based on the responses of 650 adults and included item analysis, factor analysis, and reliability measures. Factor analysis yielded nine factors, five benefits and four barriers, which explained 64.9% of the variance in the 43-item instrument. Second order factor analysis resulted in a two-factor solution, one a benefits factor and the other a barriers factor. The standardized Cronbach's alpha reliability coefficients were: .952 for the total scale, .953 for the benefits scale, and .886 for the barriers scale. Use of the instrument in research involving perceptions of the benefits of exercise and the barriers to exercise appears warranted.
一项用于测量运动感知益处和运动感知障碍的工具的初步心理测量评估基于650名成年人的回答，包括项目分析、因子分析和信度测量。因子分析产生了九个因子，五个益处因子和四个障碍因子，它们解释了该43个项目工具中64.9%的方差。二阶因子分析得出了一个双因子解决方案，一个是益处因子，另一个是障碍因子。标准化的克朗巴哈α信度系数分别为：总量表为0.952，益处量表为0.953，障碍量表为0.886。在涉及运动益处感知和运动障碍感知的研究中使用该工具似乎是合理的。
