There is a distinction that one learns about on the first day of a course in psychological research methods. It is the difference between internal and external validity. Internal validity is ...

The Massachusetts state Education Department last year commissioned Mathematica Policy Research to do a validity study comparing the Common Core test known as PARCC, created by a federally funded ...

There is a distinction that one learns about on the first day of a course in psychological research methods. It is the difference between internal and external validity. Internal validity is ...

From the perspective of score interpretation, the purpose of testing accommodations is to reduce the dependence of test scores on factors that are irrelevant to the construct that is being assessed.

The debate over a link between autism and vaccines continues. A study published earlier this month concluded African-American boys are more at risk for autism if they’re given the measles, mumps and ...

Background Shoulder strength assessment plays an important role in the clinical examination of the shoulder region. Eccentric strength measurements are of special importance guiding the clinician in ...

A study published in The Oncologist concluded that discrepant variant classification in public databases can introduce uncertainty and diminish patient care. Can we trust gene variant information ...

Improving the validity of your market research can increase the effectiveness of your marketing strategies. When you know what members of your target market are doing and what they want, you can ...