条目的得分概率与潜在特质呈特定的回归关系,这些关系通常称为各种数学模型。
There is a certain regression between the score probability of an item and the latent trait, and the regressions are usually represented as mathematic models.
不同的潜在特质,适用于不同特性的条目来测量,这将提高测量精度和测验效率。
A given level of latent trait could be measured by specially featured items, so that the measurement accuracy and test efficacy will be increased.
若观测变量和潜在特质之间的关系在相比较的群体之间等同,就称该量表具备测量等价性。
Equivalent measurement is obtained when the relations between observed test scores and the latent attribute measured by the test are identical across subpopulations.
Very clear about who again the ideal statesman or reader potential statesman the reader of this book would be.
清楚地描绘出,理想的政治家或读者,本书潜在政治家读者的特质。
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