Depending on the validity of an article we can classify it within a scale of levels of evidence and degrees of recommendation.
有了文献的有效性评价，我们才能给所获得的证据分级，并以此为推荐分级。
2
Depression was measured with the Center for Epidemiologic Studies Depression Scale (CES-D), an instrument with good reliability and validity.
学者们用CES - D量表对受试者的抑郁情绪进行测量，这个量表具有很好的信度和效度。
3
Again in line with survey research, applied a series of statistical methods to scale the feasibility, reliability, validity and responsiveness evaluation.