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口语测试的任务,就是在测试环境下要求被试使用目标语口头完成的测试作业,其功能是用于引导被试说出可供评分的话语,以此推论被试在目标语交际环境中的口语能力。任务难度则是衡量任务质量的一个重要指标。在现有的口语测试实践中,对任务难度的评估和调控主要不是通过科学量化的手段,而是凭借设计者的主观经验,这在相当程度上影响了任务质量
The task of spoken language test is to test subjects who use the target language verbally to complete the test in the test environment. The function of the spoken language test is to guide the subjects to say the words that are available for scoring, so as to infer that the subjects in the target language communication environment Speaking Ability. The difficulty of the task is an important indicator to measure the quality of the task. In the existing practice of spoken language testing, the task of assessing and controlling the difficulty is not primarily through the means of scientific quantification, but by virtue of the designer’s subjective experience, which to a considerable extent affected the quality of the task