recovery study meaning in English

回收试验

The recovery studies in serum samples show the feasibility of practical application of the proposed method
血清样品中的回收实验表明该法可用于实际测定。
The above algorithm forms a double - two - stage iteration , as following : the results of monte carlo stimulation show that the double - two - stage iteration algorithm is more effective than empirical logistic regression after item and ability parameters recovery study . there are three advantages about the new method : first . the new method can be applied to estimate fewer items ; secondly , a test including fewer unusual response patterns can also be evaluated ; thirdly , the results compared with homogeneous software dealing with 2plm are accepted using mean absolute error as the criterion
这种新方法有以下三个优点：项目数很少时参数估计的结果也较稳定；能处理测验中含有少量特殊反应模式(见第二章)的参数估计；以估计值和真值之差的绝对值(平方)的平均值作为估计对真值的修复能力为指标，新方法的参数估计结果与同类流行软件相比，修复能力不相上下；特别地，新的参数估计方法可以用于多级评分项目gpcm ，并为估计题组项目开辟了另一条道路。