人的全面发展与社会主义初级阶段     

滕建河 《襄樊学院学报》2002,23(6):20-23

人的全面发展是在其实践本质得以充分占有和展示基础上的德智体美诸方面素质的有层次的发展。在社会主义初级阶段，人的全面发展构成社会主义本质的核心内容，而社会主义市场经济则是促进人的全面发展的 有效机制，教育事业则是人的全面发展的重要动力。  相似文献   

Testing Measurement Invariance Across Unobserved Groups: The Role of Covariates in Factor Mixture Modeling     

Yan Wang  Eunsook Kim  John M. Ferron  Robert F. Dedrick  Tony X. Tan  Stephen Stark 《Educational and psychological measurement》2021,81(1):61

Factor mixture modeling (FMM) has been increasingly used to investigate unobserved population heterogeneity. This study examined the issue of covariate effects with FMM in the context of measurement invariance testing. Specifically, the impact of excluding and misspecifying covariate effects on measurement invariance testing and class enumeration was investigated via Monte Carlo simulations. Data were generated based on FMM models with (1) a zero covariate effect, (2) a covariate effect on the latent class variable, and (3) covariate effects on both the latent class variable and the factor. For each population model, different analysis models that excluded or misspecified covariate effects were fitted. Results highlighted the importance of including proper covariates in measurement invariance testing and evidenced the utility of a model comparison approach in searching for the correct specification of covariate effects and the level of measurement invariance. This approach was demonstrated using an empirical data set. Implications for methodological and applied research are discussed.  相似文献   

Incorporating Uncertainty Into Parallel Analysis for Choosing the Number of Factors via Bayesian Methods     

Roy Levy  Yan Xia  Samuel B. Green 《Educational and psychological measurement》2021,81(3):466

A number of psychometricians have suggested that parallel analysis (PA) tends to yield more accurate results in determining the number of factors in comparison with other statistical methods. Nevertheless, all too often PA can suggest an incorrect number of factors, particularly in statistically unfavorable conditions (e.g., small sample sizes and low factor loadings). Because of this, researchers have recommended using multiple methods to make judgments about the number of factors to extract. Implicit in this recommendation is that, when the number of factors is chosen based on PA, uncertainty nevertheless exists. We propose a Bayesian parallel analysis (B-PA) method to incorporate the uncertainty with decisions about the number of factors. B-PA yields a probability distribution for the various possible numbers of factors. We implement and compare B-PA with a frequentist approach, revised parallel analysis (R-PA), in the contexts of real and simulated data. Results show that B-PA provides relevant information regarding the uncertainty in determining the number of factors, particularly under conditions with small sample sizes, low factor loadings, and less distinguishable factors. Even if the indicated number of factors with the highest probability is incorrect, B-PA can show a sizable probability of retaining the correct number of factors. Interestingly, when the mode of the distribution of the probabilities associated with different numbers of factors was treated as the number of factors to retain, B-PA was somewhat more accurate than R-PA in a majority of the conditions.  相似文献   

Measuring children’s perceived cost of school science: Instrument development and psychometric evaluation     

《Studies in Educational Evaluation》2021

This investigation addresses the need for valid and reliable instruments that contribute to understanding the factors that lead to the rejection of science-related studies. We discuss the theoretical and methodological limitations of published attitudes toward science questionnaires and describe the development and validation of a short instrument rooted in the cost construct of the expectancy-value model of achievement motivation. We collected data from a sample of six hundred thirty-two 5^th and 6^th (M_age = 10.87; SD = .76) elementary students in Spain. Exploratory and confirmatory factor analysis revealed a parsimonious structure measuring loss of valued alternatives and task effort ​cost. Further psychometric evaluation displayed evidence for convergent, discriminant, and concurrent validity. Likewise, the reliability was acceptable for both three-item scales. These findings support the proposed instrument to measure barriers experienced by Spanish children when studying school science.  相似文献   

教育人力资本积累、分布与经济增长动能的转换——来自新中国70年的经验证据     

黄维海  张晓可 《教育与经济》2021,37(1):29-38,49

借助新中国成立以来的历史数据,分析70年间中国经济高速增长的主要动能及其转换过程。通过数理推导,首先扩展出含有人力资本分布的经济增长模型,然后对各个历史时期的增长动能进行分解,发现实物资本对经济增长始终具有重要的促进作用,人力资本则在20世纪90年代后开始显著促进经济增长,逐渐成为保持中国经济持续增长的新动能。人力资本分布对经济增长的影响以人力资本积累产生显著作用为前提,分布的平衡化有利于人力资本的积累和溢出效应,进而间接促进经济增长,但促进中国经济增长的人力资本结构不是按照受教育程度“阶梯型”分布,而是“剪刀型”分布。因此,应当将人力资本作为经济增长新旧动能转换的着力点,进一步优化教育资源投入,改善人力资本结构,使人力资本积累及其结构更好地耦合产业结构调整和升级,更有效地赋能经济增长。  相似文献   

高等教育人力资本集聚对技术创新的空间效应——以湖北省地级市为例的实证分析     

黄容霞  魏萍  潘孝珍 《中国高教研究》2021,(1):70-76,95

基于湖北省2007—2018年12个主要城市的面板数据,分析高等教育人力资本集聚对技术创新的空间效应。研究发现,湖北技术创新水平在市际尺度具有显著的全局和局部空间自相关特征。考虑空间相关性后,无论使用相邻矩阵还是地理反距离矩阵,静态和动态空间杜宾模型回归结果表明,高等教育人力资本集聚对技术创新水平存在显著正向空间溢出效应;动态空间杜宾模型回归结果及其空间效应分解结果表明,城市高等教育人力资本集聚显著促进了本地城市发明创造类技术创新水平的提升。此外,城市经济发展水平、政府投入和产业结构也是影响技术创新水平空间差异的重要因素。因此,政府应激发基础产业技术创新水平,鼓励跨区域人才合作与协同创新。  相似文献   

技能竞赛对高职学生创业能力影响的因素研究     

许波 《宁波职业技术学院学报》2021,(2):27-32

技能竞赛是培养高职学生创业能力的重要途径,技能竞赛可以分为创业竞赛和职业能力竞赛。通过对河源职业技术学院的183份有效样本数据进行因子分析,筛选出三个主因子,分别从专业能力、管理能力和成长潜力维度对高职学生创业能力产生影响,然后以创业竞赛和职业技能竞赛为自变量对三个主因子进行回归分析。研究发现创业竞赛对专业能力和管理能力有显著影响,职业技能竞赛对成长潜力有显著影响。培养高职学生创业能力需要进行多角度创业实践,积极参与创业竞赛,完善创业教育体系。  相似文献   

妊娠期糖尿病相关炎性因子的研究进展     

何可人  单莉莉  刘芳  王珊 《深圳职业技术学院学报》2021,(1)

目前妊娠期糖尿病的发病机制尚不完全清楚,随着研究的进展,免疫炎症假说日益受到学者的重视.妊娠期糖尿病的发病与病人体内的促炎/抗炎细胞因子平衡失常有关,该平衡倾向于促炎细胞因子的分泌,而抗炎细胞因子在疾病的发生、发展中可能发挥保护作用,文章综述了促炎细胞因子(TNF-6、IL-6、IFN-γ、IL-2、IL-17、IL-1β)和抗炎细胞因子(IL-10、IL-37、IL-4)在妊娠期糖尿病发生、发展中的作用,以及它们在临床筛查和诊断中的应用,以期为妊娠期糖尿病的预测和防治提供参考.  相似文献   

农村人力资源开发助力农业农村产业兴旺的几个维度     

谢向阳  淦家辉  胡恒钊 《四川职业技术学院学报》2021,(1)

乡村要振兴,产业兴旺是重点。乡村振兴视域下的产业兴旺,是传统农业转变成高生产率的现代农业,是提升传统农业产业的品质,以农业产业为基础,融合一二三产业,将产业延伸到乡村,由一业兴而带动百业旺、传统农业发展为现代农业农村产业的过程。农村人力资源是最具活性的因素,在产业兴旺中起着重要的作用。乡村振兴战略背景下的农村人力资源开发,要有农业农村产业现代化的远大目标,同时也要保基本、抓重点,守好中国人民粮食安全的底线;在此基础上,着力解决当前农业农村产业品质不高、效益不佳,产品市场不广、不畅等主要问题。为此,要围绕着建体系提品质、融通城乡市场的要求,根据乡村振兴目标任务的阶段性、过程性和层递性,推进农村人力资源开发。  相似文献   

基于因子偏离度的GBDT多因子选股模型     

邓晶 《教育技术导刊》2021,20(1):109-112

为了避免股票市场中因子之间复杂非线性关系引起的多因子选股模型过拟合现象,基于因子偏离度对股票因子数据进行分析,筛选影响股票收益率的有效因子,通过梯度提升树对股票影响因子的权值进行不断调整和分析,建立一个DEV-GBDT量化选股模型,再根据基于因子偏离度的GBDT多因子选股模型的预测结果进行模拟交易,以沪深300指数成分股2010年1月1日—2019年7月31日数据为例进行实证分析。实验结果表明,DEV-GBDT选股模型的年化收益率达26.14%,比传统GBDT选股模型提高8.61%。基于因子偏离度的GBDT多因子选股模型能有效识别股市影响因子,提高股票预测准确度,帮助投资者获得超额收益。  相似文献