Validity and reliability of questionnaires measuring physical activity self-efficacy, enjoyment, social support among Hong Kong Chinese children.
Validity and reliability of questionnaires measuring physical activity self-efficacy, enjoyment, social support among Hong Kong Chinese children.
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DOI：
10.1016/j.pmedr.2014.09.005
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发表时间：
2014
影响因子：
2.8
通讯作者：
Baranowski T
中科院分区：
文献类型：
--
作者：
Liang Y;Lau PW;Huang WY;Maddison R;Baranowski T
身体活动（PA）的相关性尚未在香港儿童中进行广泛研究。本研究的目的是评估翻译量表的效度和信度，以测量PA相关的自我效能，享受和社会支持的香港华人儿童。样本1（n = 273，年龄8-12岁）从两所小学招募（2013年5月-6月）。采用验证性因素分析（CFA）评价因子效度。通过将测量的结构与自我报告的PA相关联来评估标准有效性。计算Cronbach’s alpha以评估量表内部一致性。采用组内相关系数（ICC）评价量表的重测信度。通过将测量的结构与2013年9月和2014年2月收集的客观测量的PA相关联，在第三所学校的样本2（n = 84，年龄8-12岁）中进一步检查了标准有效性。验证性因素分析结果支持量表的单因素结构。所有PA相关性与样品1中自我报告的PA显著相关（p < 0.01）。在样本2中，自我效能和享受与客观测量的PA显著相关（p < 0.05）。所有量表均表现出可接受的内部一致性。所有的ICC值的规模建议可接受的重测信度。研究结果为使用量表测量香港华人儿童的PA相关提供了心理测量学支持。在香港儿童中评估了测量PA相关因素的翻译量表的效度和信度。验证性工厂分析支持量表的因子效度。量表的效标效度得到了支持，每个结构与自我报告的PA之间的显着相关性。量表的内部一致性和测验-休息信度都是可以接受的。量表标准有效性（自我效能和享受）进一步证明了客观测量的体力活动在一个较小的样本。
Physical activity (PA) correlates have not been extensively studied in Hong Kong children. The aim of this study is to assess the validity and reliability of translated scales to measure PA related self-efficacy, enjoyment and social support in Hong Kong Chinese children. Sample 1 (n = 273, aged 8–12 years) was recruited (May–June, 2013) from two primary schools. Confirmatory factor analyses (CFA) were conducted to assess factorial validity. Criterion validity was assessed by correlating measured constructs with self-reported PA. Cronbach's alpha was computed to assess scale internal consistency. The intraclass correlation coefficient (ICC) was performed to assess scale test–retest reliability. Criterion validity was further examined in Sample 2 (n = 84, aged 8–12 years) from a third school by correlating measured constructs with objectively measured PA collected in September 2013 and February 2014. The CFA results supported the one-factor structure of the scales. All PA correlates were significantly (p < 0.01) associated with self-reported PA in Sample 1. Self-efficacy and enjoyment were significantly (p < 0.05) correlated with objectively measured PA in Sample 2. All the scales demonstrated acceptable internal consistency. All ICC values of the scales suggested acceptable test–retest reliability. The results provide psychometric support for using the scales to measure PA correlates among Hong Kong Chinese children. Validity and reliability of translated scales measuring PA correlates were assessed among Hong Kong children. Confirmatory factory analyses supported the scale factorial validity. Scale criterion validity was supported by significant correlation between each construct with self-reported PA. Scale internal consistency and test-rest reliability were all acceptable. Scale criterion validity (self-efficacy and enjoyment) was further demonstrated with objectively measured physical activity in a smaller sample.