Perry Christina M, De Ayala R J, Lebow Ryan, Hayden Emily
Nutrition and Health Sciences, University of Nebraska, Lincoln, NE 68583, USA.
Health Educ Behav. 2008 Jun;35(3):346-60. doi: 10.1177/1090198106294892. Epub 2007 Apr 20.
The purpose of this study was to obtain validity evidence for the Physical Activity and Healthy Food Efficacy Scale for Children (PAHFE). Construct validity evidence identifies four subscales: Goal-Setting for Physical Activity, Goal-Setting for Healthy Food Choices, Decision-Making for Physical Activity, and Decision-Making for Healthy Food Choices. The scores on each of these subscales show a moderate to high degree of internal consistency (0.59 <or= alpha <or= 0.87). The Decision-Making for Healthy Food Choice subscale and the Decision-Making for Physical Activity subscale scores show significant convergent validity evidence. These results provide support for using this self-efficacy scale to measure children's perceived confidence to make decisions about healthy eating and physical activity. The PAHFE may be considered to be a useful predictor of both physical activity and eating behaviors.
本研究的目的是获取儿童身体活动与健康食品效能量表（PAHFE）的效度证据。结构效度证据确定了四个子量表：身体活动目标设定、健康食品选择目标设定、身体活动决策和健康食品选择决策。这些子量表中每个子量表的得分都显示出中度到高度的内部一致性（0.59≤α≤0.87）。健康食品选择决策子量表和身体活动决策子量表的得分显示出显著的收敛效度证据。这些结果为使用该自我效能量表来测量儿童对做出健康饮食和身体活动决策的感知信心提供了支持。PAHFE可被视为身体活动和饮食行为的有用预测指标。
