IRT true score equating and IRT observed score equating in common-item non-equivalent group design based on the item response theory were compared.

研究采用锚测验非等组设计，对IRT真分数等值和IRT观察分数等值两种方法进行了比较研究。

youdao

In this paper, we carry out a research into the special case, that is the finite determinacy of smooth function germs under various subgroups of right equivalent group.

本文对光滑函数芽在右等价群的各种子群下的有限决定性展开了研究，对光滑函数芽在函数芽运算下关于右等价群的有限决定性也进行了讨论。

youdao

In this paper are given some of sufficient conditions for finite determinacy relative to right equivalent group of smooth function-germs to be preserved under the operation of function germs.

给出了关于右等价群有限决定的光滑函数芽在函数芽运算下仍保持有限决定的一些充分条件。

youdao

This randomization feature allowed researchers to compare the newly-enrolled group with an equivalent group not selected knowing that there was no selection bias that might produce a spurious result.

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