Psychometric Properties of the Healthy Lifestyle Beliefs Scale for Adolescents.
Psychometric Properties of the Healthy Lifestyle Beliefs Scale for Adolescents.
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DOI：
10.1016/j.pedhc.2020.11.002
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发表时间：
2021-05
期刊：
影响因子：
--
通讯作者：
Tan A
中科院分区：
文献类型：
--
作者：
Melnyk BM;Kelly S;Tan A
健康的生活方式行为是保持健康的核心。了解影响这些行为的认知因素可能是帮助个人采取健康生活方式行为的关键。本研究的目的是分析16项健康生活方式信念量表（HLB）的心理测量特性，该量表允许测量一个人对自己健康生活方式能力的信念。采用描述性统计方法对16个HLB量表项目的样本特征和项目特征进行总结。探索性因子分析（EFA）用于确定影响HLB量表的因子数量和因子结构。验证性因子分析（CFA）用于验证EFA衍生的因子结构。通过测试一系列嵌套的多组CFA模型，通过在每个连续模型中添加进一步的约束来测试三个水平的测量不变性，从而检查性别和种族群体的测量不变性。总量表的Cronbach 's alpha为0.894。EFA筛选图确定了两个特征值大于1的因素。因子1和因子2的负荷均大于0.40，不存在交叉负荷。对CFA保留双因素解决方案。与没有相关项目的模型相比，具有相关项目的最终CFA模型具有更好的模型拟合。测量不变性结果表明，HLB测量在因子结构、因子负荷、阈值和残差方差方面不存在性别差异。发现HLB量表具有足够的内部一致性，与数据拟合。研究结果表明，它对男孩和女孩都是有效和可接受的。
Healthy lifestyle behaviors are at the core of maintaining health. Understanding cognitive factors that influence these behaviors may be key in assisting individuals to adopt healthy lifestyle behaviors. The aim of this study was to analyze the psychometric properties of the 16-item Healthy Lifestyle Beliefs Scale (HLB) that allows measurement of a person’s beliefs about their ability to live a healthy lifestyle. Descriptive statistics were used to summarize sample characteristics and item characteristics of the 16 HLB scale items. Exploratory factor analysis (EFA) was conducted to identify the number of factors and factor structure underlying the HLB scale. Confirmatory factor analysis (CFA) was used to verify the factor structure derived from the EFA. Measurement invariance across gender and ethnic groups was examined by testing a sequence of nested multi-group CFA models by adding further constraints in each successive model to test three levels of measurement invariance. Cronbach’s alpha of the total scale was 0.894. The EFA scree plot identified two factors with eigenvalues greater than one. All factor loadings for factors 1 and 2 were greater than 0.40 and there were no items cross-loaded. A two-factor solution was retained for CFA. The final CFA model with correlated items had a better model fit, compared to the model with no correlated items. The measurement invariance results suggested that there was no gender difference in HLB measure in terms of factor structure, factor loading, threshold, and residual variances. The HLB scale was found to have adequate internal consistency and fit with the data. Findings show it is valid and acceptable for both boys and girls.
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影响因子：
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影响因子：
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