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 ...

Jones joins Validity as its AI-powered marketing success platform begins fueling high-growth for its customers. BOSTON, Sept. 10, 2025 /PRNewswire/ -- Validity Inc., the leading provider of marketing ...

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 ...

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 General Nutrition Knowledge Questionnaire (GNKQ) was developed in the 1990s and has been widely used. Since then advances in understanding of associations between diet and disease have led to ...

Correspondence to Dr Moritz Schumann, Institute of Cardiovascular Research and Sports Medicine, Department of Molecular and Cellular Sports Medicine, German Sport University Cologne, Koln 50858, ...