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 ...

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 ...