Try various formats and styles, test length, test if there is no video at all, do you still get the same results?

尝试不同的格式和题材，测试一下长度，看看有没有这方面的视频，你能得到同样的结果吗？

youdao

Speaking of testing, your test length should be minimally be 10-15 minutes in length in order for the JVM to optimize the bytecode and runtime to stabilize.

说到测试，您的测试长度应该最少为 10-15 分钟以便 JVM 能够优化字节码和运行时达到稳定状态。

youdao

An analysis of formulas is made based on classical testing theories and a new formula is put forward to explain the relationship between test validity and test length.

根据经典测量理论对代表测验长度与测验效度关系的公式进行分析和讨论，提出测验效度与长度关系的表达公式。

youdao

A two thousand seven British study showed that finger length might help predict test results among schoolchildren.

VOA: special.2009.02.25

In the second test Pickens had to judge the length of lines and the relative distance between lines and dots.

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The summative test therefore has to be a certain length so that it can collect such statistically valid information.

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The original plan was for a two-and-a-half-minute test tomorrow, cut last week to the 30-second length.

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