Simulated variance-covariace matriz

These data reproduce the controlled simulation of variance-covariance structure of real survey based on a multivariate normal distribution. For each cluster of questions, also called "Construct", is assigned a desired level of correlation. To reproduce the correlation among several groups of questions, a chosen correlation coefficient is also assigned to the blocks of constructs.本数据集复现了基于多元正态分布对真实调查中方差-协方差结构的控制模拟。对于每一组问题群，亦称‘结构’，均赋予特定的相关性水平。为再现多个问题群之间的相关性，还针对结构块指定了选择的关联系数。