标准有效性、内容有效性、构思有效性是有效性评价的三个主要线索。
Three threads of validity assessment look at criterion validity, content validity and construct validity.
我们应测试技术准确性，编辑准确性，整体标准，和学习有效性。
We may test for technical accuracy, editorial accuracy, corporate standards, and learning effectiveness.
膳食营养品和辅助减肥产品并不像处方药一样要按照非常严格的标准来，因此只要出示有限的有效性安全性证明，就可以出售。
Dietary supplements and weight-loss aids aren't subject to the same rigorous standards as are prescription drugs. Thus, they can be sold with limited proof of effectiveness or safety.
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