是指测量数据的真实性和准确性，即变量的操作定义能否反映原始概念的基本定义。效度代表了测量结果与真实情况或现象本质的接近程度，越靠近真实本质，效度越高。由于效度反映的是对事物本质的揭示程度，因此无法在短时间内获得，需要经历一个过程。

Employers gauge a job candidate's ability to work and learn in an establishment through pre-employment assessments. To make a sound decision in the hiring process, companies should understand how to ...