Dept of Psychology, San Diego State University, San Diego, CA, USA.
J Phys Act Health. 2012 Nov;9(8):1178-86. doi: 10.1123/jpah.9.8.1178. Epub 2011 Dec 27.
Psychosocial factors have been related to physical activity (PA) and are used to evaluate mediation in PA interventions.
Brief theory-based psychosocial scales were compiled from existing measures and evaluated. Study 1 assessed factor structure and construct validity with self-reported PA and accelerometry in overweight/obese men (N = 441) and women (N = 401). Study 2 assessed 2-week reliability and internal consistency in 49 college students.
Confirmatory factor analysis indicated good fit in men and women (CFI = .90; RMSEA = .05). Construct validity was supported for change strategies (r = .29-.46), self-efficacy (r = .19-.22) and enjoyment (r = .21-.33) in men and women, and for cons in women (r = -.19 to -.20). PA pros (r = -.02 to .11) and social support (r = -.01 to .12) were not supported for construct validity. Test-retest reliability ICCs ranged from .49-.81. Internal consistency alphas ranged from .55-.90. Reliability was supported for most scales with further testing needed for cons (alphas = .55-.63) and enjoyment (ICC = .49).
Many of the brief scales demonstrated adequate reliability and validity, while some need further development. The use of these scales could advance research and practice in the promotion of PA.
社会心理因素与身体活动（PA）有关，并用于评估 PA 干预措施中的中介作用。
从现有的测量工具中编译了简短的基于理论的社会心理量表，并对其进行了评估。研究 1 使用自我报告的 PA 和加速度计评估了超重/肥胖男性（N = 441）和女性（N = 401）的因子结构和构念效度。研究 2 在 49 名大学生中评估了 2 周的可靠性和内部一致性。
在男性和女性中，验证性因子分析表明拟合度良好（CFI =.90；RMSEA =.05）。在男性和女性中，变化策略（r =.29-.46）、自我效能感（r =.19-.22）和享受（r =.21-.33）以及女性的一致性（r = -.19 至 -.20）得到了支持。PA 促进因素（r = -.02 至.11）和社会支持（r = -.01 至.12）的构建效度不支持。PA 促进因素（r = -.02 至.11）和社会支持（r = -.01 至.12）的构建效度不支持。PA 促进因素（r = -.02 至.11）和社会支持（r = -.01 至.12）的构建效度不支持。PA 促进因素（r = -.02 至.11）和社会支持（r = -.01 至.12）的构建效度不支持。PA 促进因素（r = -.02 至.11）和社会支持（r = -.01 至.12）的构建效度不支持。PA 促进因素（r = -.02 至.11）和社会支持（r = -.01 至.12）的构建效度不支持。PA 促进因素（r = -.02 至.11）和社会支持（r = -.01 至.12）的构建效度不支持。测试-重测信度 ICC 范围为.49-.81。内部一致性 α 范围为.55-.90。大多数量表的可靠性得到了支持，需要进一步测试一致性（α值为.55-.63）和享受（ICC =.49）。
许多简短的量表具有足够的可靠性和有效性，而有些则需要进一步发展。这些量表的使用可以推动 PA 促进研究和实践的发展。
