原始文本 - 英语 - A study is valid if its measures actually measure...

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标题	A study is valid if its measures actually measure...
需要翻译的文本提交 se-ni-ay	源语言: 英语 A study is valid if its measures actually measure what they claim to and if there are no logical errors in drawing conclusions from the data.

2009年二月 8日 16:41