青少年感知身体素养量表：身体素养感知量表（PPLI）的进一步验证
Perceived physical literacy instrument for adolescents: A further validation of PPLI.
作者信息
Sum Raymond K W, Cheng Chih-Fu, Wallhead Tristan, Kuo Che-Chun, Wang Fong-Jia, Choi Siu-Ming
机构信息
Department of Sports Science and Physical Education, The Chinese University of Hong Kong, Hong Kong.
College of Sports and Recreation, National Taiwan Normal University, Taiwan, ROC.
出版信息
J Exerc Sci Fit. 2018 Apr;16(1):26-31. doi: 10.1016/j.jesf.2018.03.002. Epub 2018 Mar 14.
BACKGROUND/OBJECTIVE: The purpose of this study is to examine the reliability and validity of "Perceived Physical Literacy Instrument" (PPLI) questionnaire in adolescents.
METHODS
Based on physical literacy literature, a 9-item instrument was developed for initial tests. The self-report measure was administered to 1945 adolescents in Hong Kong. Confirmatory factor analysis (CFA) was used to examine a three-factor structure of physical literacy. A chi-square difference test analysed several competing models and compared the results between the proposed models (i.e., a three-factor solution) and other alternative models (i.e., a one-factor or two-factor solution). Furthermore, the measurement invariance across gender groups was examined by using multiple-group confirmatory factor analysis. Mean scores for physical literacy factors were also examined by demographic characteristics.
RESULTS
Confirmatory factor analysis (CFA) showed that the construct demonstrated a good fit to the model. For convergent validity, our results, evaluating the factor loading of each items, the values of composite reliability (CR) and the average variance extracted (AVE) of the three factors, revealed that the three-factor validity of physical literacy was satisfactory. The chi-square difference test between models was significant indicating that all the latent variables had satisfactory discriminant validity. Moreover, the findings of measurement invariance showed that the PPLI is invariant across gender.
CONCLUSIONS
The PPLI thus appeared to be reliable and valid as a measure of the perceived physical literacy of adolescents. Thus, along with other validated instruments, protocols and research designs, the PPLI could be widely used to test adolescents' self-perception of physical literacy and their own physical and mental health conditions and thereby health. Physical education professionals may thus recommend appropriate intervention programmes for younger generations.
背景/目的：本研究旨在检验青少年“感知身体素养量表”（PPLI）问卷的信效度。
方法
基于身体素养文献，编制了一份包含9个条目的量表用于初步测试。对1945名香港青少年进行了该自陈式量表测试。采用验证性因素分析（CFA）检验身体素养的三因素结构。通过卡方差异检验分析了几种竞争模型，并比较了所提出模型（即三因素模型）与其他替代模型（即单因素或双因素模型）的结果。此外，通过多组验证性因素分析检验了不同性别组间的测量不变性。还按人口统计学特征对身体素养各因素的平均得分进行了检验。
结果
验证性因素分析（CFA）表明该结构与模型拟合良好。在收敛效度方面，我们通过评估各条目的因素负荷、三个因素的组合信度（CR）值和提取的平均方差（AVE），结果显示身体素养的三因素效度令人满意。模型间的卡方差异检验具有显著性，表明所有潜在变量都具有令人满意的区分效度。此外，测量不变性的结果表明PPLI在不同性别间具有不变性。
结论
因此，PPLI作为青少年感知身体素养的一种测量工具，似乎具有信效度。因此，与其他经过验证的工具、方案和研究设计一起，PPLI可广泛用于测试青少年对身体素养的自我认知及其自身的身心健康状况，进而促进健康。体育教育专业人员因此可为年轻一代推荐合适的干预方案。
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