Brown Seth A, Huber Daniel, Bergman Amber
Department of Psychology, University of Northern Iowa, Baker Hall 334, Cedar Falls, IA 50614-0505, USA.
Am J Health Promot. 2006 Nov-Dec;21(2):137-40. doi: 10.4278/0890-1171-21.2.137.
Due to relatively low physical activity among college students, a standardized, reliable, and valid scale of perceived benefits and barriers for this population is critical. The purpose of this study was to develop a new scale, the Physical Activity Benefits and Barriers Scale, and determine whether the scale was appropriate for college students.
An exploratory factor analysis of 26 benefit and 24 barrier items of physical activity was administered to 493 college students, followed by an examination of the relationship between the newly derived factors and physical activity, as well as test-retest reliability.
Twenty-eight items loaded on 10 factors that accounted for 60% of the variance, and 9 of the 10 factors were moderately associated with strenuous physical activity.
Psychometric properties were acceptable on this new scale, with the low motivation factor accounting for the highest amount of the variance in strenuous physical activity.
由于大学生的身体活动水平相对较低，因此针对这一人群制定一个标准化、可靠且有效的感知益处和障碍量表至关重要。本研究的目的是开发一个新的量表，即身体活动益处与障碍量表，并确定该量表是否适用于大学生。
对493名大学生进行了一项关于身体活动的26项益处和24项障碍条目的探索性因素分析，随后考察新得出的因素与身体活动之间的关系以及重测信度。
28个条目载荷于10个因素上，这些因素解释了60%的方差变异，且10个因素中的9个与剧烈身体活动呈中度相关。
这个新量表的心理测量特性是可以接受的，其中低动机因素在剧烈身体活动的方差变异中占比最高。
