In everyday language, the term validity is typically used to describe something as being trustworthy or legit. It's meaning in psychology suggests something similar—it's all about whether we can trust ...

In 2000, London opened its Millennium pedestrian bridge to the public in a widely celebrated event. The momentous occasion drew large numbers of people, eager to view and experience the bridge first ...

The first reason for caring about how sensitive our standardized tests are to instruction is moral. If the tests we use to judge the effects of instruction on student learning are not sensitive to ...

Knowing that a test is valid requires more than just the appearance of validity. The shyness test might seem valid on the face of things because it contains items such as "I tend to shy away from ...

Precision medicine has touched every aspect of healthcare today, and—as is evident from President Obama’s State of the Union speech for 2015—is front of mind with the federal government, which ...

In my previous blog post, I noted that reliability and validity are two essential properties of psychological measurement. Measures of intelligence, personality, vocational interests, and so forth ...