Fernández Cabrera Thais, Medina Anzano Silvia, Herrera Sánchez Isabel María, Rueda Méndez Samuel, Fernández Del Olmo Aarón
Departamento de Psicología Social, Universidad de Sevilla, Seville, Spain.
Rev Esp Salud Publica. 2011 Aug;85(4):405-17. doi: 10.1590/S1135-57272011000400009.
The estimation by standardized tests on belief in personal capacity to practice regular physical activity (self-efficacy for physical activity) allows us to make predictions about the actual practice of this behavior. We do not have measuring instruments suitable for this purpose, therefore, we propose to construct and validate a scale to determine levels of self-efficacy of adult users of the Primary Health Care Services for regular physical activity.
Phases: 1) Develop and review the scale by expert judges. 2) A pilot study. 3) Determination of reliability and validity of the test. The sample was 388 adult users (18-65 years) of health centres from the province of Seville selected by cluster sampling (health centres) and quotas (town size, age and sex). Concurrent validity was found by the International Physical Activity Questionnaire (IPAQ) and discriminant validity by Beck Depression Inventory (BDI).
The results reported adequate content validity and high reliability (Cronbach Alpha > 0,9 in all factors and β = 0,96). Exploratory factor analysis showed three factors explaining 52,569% of the variance. The scale was sensitive to activity levels assessed by the IPAQ (F (1)= 4.131; p <0.05) and negatively correlated with BDI (r = -0,127; p <0,05).
The psychometric properties of the scale are appropriate for measuring the efficacy of adult users of Health Services to practice regular physical activity.
通过标准化测试对个人进行定期体育活动能力的信念（体育活动自我效能感）进行评估，有助于我们预测这种行为的实际表现。我们没有适用于此目的的测量工具，因此，我们建议构建并验证一个量表，以确定初级卫生保健服务成年使用者进行定期体育活动的自我效能水平。
阶段：1）由专家评审员制定并审查量表。2）进行一项预试验研究。3）确定测试的信度和效度。样本是通过整群抽样（卫生中心）和配额抽样（城镇规模、年龄和性别）从塞维利亚省的卫生中心选取的388名成年使用者（18 - 65岁）。通过国际体育活动问卷（IPAQ）发现同时效度，通过贝克抑郁量表（BDI）发现区分效度。
结果显示内容效度良好且信度高（所有因素的克朗巴赫α系数>0.9，β = 0.96）。探索性因素分析显示三个因素解释了52.569%的方差。该量表对IPAQ评估的活动水平敏感（F(1)= 4.131；p <0.05），且与BDI呈负相关（r = -0.127；p <0.05）。
该量表的心理测量特性适用于测量卫生服务成年使用者进行定期体育活动的效能。
