latent trait meaning in Chinese

潜在特质

In this thesis , based on item response theory , a number of ways to estimate the latent trait and item parameters were introduced and their advantages and disadvantages were analyzed ; what is more , empirical logistic regression and two parameters logistic model ( 2plm ) are combined to set up a linear model by logit - mapping and a new parameter - estimation method is proposed
新方法将经验logistic回归用于两参数logistic模型的参数估计，使用logit变换建立线性模型，利用线性模型的最小二乘估计得到第j个项目的项目参数向量_ j = ( _ j ， _ j )的两步估计由于x _ j含有未知的讨厌参数，的理论值也和有关，我们结合上式的结果对进行再估计。