Measurement invariance and latent mean differences of the Chinese version physical activity self-efficacy scale across gender and education levels

Background: Self-efficacy has been identified as an important determinant of youth's behavior change including physical activity(PA) participation. However, the dimensionality check of a PA self-efficacy scale has rarely been conducted in China. The current study aims to examine(1) the unidimensionality of a shortened Chinese version of PA self-efficacy scale(S-PASESC);(2) the measurement invariance of S-PASESC across gender and levels of education;(3) the latent factor mean difference between gender and levels of education;(4) the direct effects of self-efficacy on PA by different gender and education levels; and(5) the comparisons of the direct effects of self-efficacy on PA across gender and education levels.Methods: The participants were 5 th through 11 th grade public school students recruited from 7 cities located in different geographic regions of China. The final data include a total of 3003 participants(49.7% boys) who have completed the scales.Results: Confirmatory factor analysis(CFA) test supported the unidimensionality of S-PASESC. The S-PASESC is invariant across gender and 3 levels of education at both configural, full metric, and full scalar levels. Findings from latent mean comparisons showed that boys reported higher PA self-efficacy than girls. Students' perceived PA self-efficacy tend to decrease from elementary to high school. Finally, self-efficacy positively related to PA by groups of different gender and education levels and the relationship between self-efficacy and PA is stronger among middle school boys than girls.Conclusion: Findings suggest S-PASESC is a valid scale for measuring Chinese students' PA self-efficacy.

结构方程模型等同性检验及其在分组比较中的应用

目的通过探讨结构方程模型等同性检验方法在分组比较中的应用,说明等同性检验的必要性和重要性。方法结合抑郁症病例-对照临床研究中特质应对方式量表数据,利用LISREL软件实现各种等同性检验及参数估计。结果通过等同性考察,证实TCSQ量表在病例-对照研究中具有等同性。结论对量表测量数据在进行分组比较时,首先须进行各种等同性检验,并在此基础上,进一步进行潜变量均值结构的分析,在此前提下研究结果更可靠。

中学生心理素质量表在中、德两国样本中的测量等值性检验

为探讨中学生心理素质量表(简化版)(Adolescent Psychological Suzhi Scale-Simplified Version,APSS-SV)在中、德两国中学生群体中的跨文化等值性和潜均值差异,采用APSS-SV对德国黑森州马尔堡市2所中学共609名7~10年级中学生和中国重庆市2所中学共1290名7~9年级中学生进行调查,对中、德两国调查数据进行单组验证性因素分析和多组验证性因素分析.结果发现:①APSS-SV在中、德两国样本间的形态等值、弱等值、强等值和严格等值模型均可被接受;②中、德两国中学生样本在APSS-SV各因子上的潜均值差异均不具有统计学意义.认为APSS-SV的双因子结构在中、德两国中学生之间具有测量等值性;APSS-SV可用于中、德两国中学生心理素质的组间差异比较.

儿童抑郁量表在中意儿童中的测量等值性研究

目的:检验儿童抑郁量表在中国和意大利学校儿童样本中的测量等值性,并比较量表各因子在中意儿童组之间的潜均值差异。方法:使用儿童抑郁量表调查550名中国2、3年级小学生和540名2、3年级意大利小学生,并对调查数据进行多组验证性因素分析。结果:对量表5因子结构的多组验证性因素分析表明,量表测量的完全等值性不被数据支持,应用拉格朗日乘数检验的进一步分析显示,21个设定等值的因素负荷中的4个,26个截距中的14个,26个测量误差中的11个跨组不等值;潜均数的跨组比较没有显示组间的显著性差异。结论:儿童抑郁量表的观察均值差异不能被潜均值完全解释,建议对儿童抑郁量表在不同国家人群中的测量结果谨慎衡量其差异大小。

多维状态无聊量表在中国和加拿大大学生中的因素等值性研究

目的:检验多维状态无聊量表(MSBS)在中国和加拿大大学生样本中的因素等值性,并比较量表各因子在两样本间的潜均数差异。方法:使用多维状态无聊量表调查360名中国大学生和360名加拿大大学生,并对调查数据进行多组验证性因素分析。结果:量表的完全等值性不成立,依据模型修正指数和释放参数等值限制时模型拟合的改变量,发现24个设定等值的因素负荷中的6个,29个截距中的10个,29个测量残差中的6个不等值;中国大学生样本在MSBS五因子上的潜均数均显著低于加拿大大学生样本。结论:多维状态无聊量表在中国大学生样本和加拿大大学生样本间具有部分测量等值性和完全结构等值性;MSBS显均数差异不能完全由潜均数差异解释。