Although the contribution of dietary factors on the development of chronic diseases, particularly cancers and cardiovascular diseases, has been increasingly recognized, the measurement of usual ...

BOSTON--(BUSINESS WIRE)--Validity, the most trusted name in customer data quality, today announced it has entered into a definitive agreement to acquire Return Path, the market leader in email ...

Results Phase I; total concordance correlation coefficients were 0.986, 0.965, 0.525 and 0.984 for Biocore-FRI, HitIQ, ORB and Prevent. Phase II; different on-field kinematics were observed between ...

Consumer wearable and smartphone devices provide an accessible means to objectively measure physical activity (PA) through step counts. With the increasing proliferation of this technology, consumers, ...

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 ...

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 ...