You will be laughed at even by the statiscians if make a headline based on your understanding of what valid is.
I am sure you never read this.
In science and statistics, validity has no single agreed definition but generally refers to the extent to which a concept, conclusion or measurement is well-founded and corresponds accurately to the real world. The word “valid” is derived from the Latin validus, meaning strong. Validity of a measurement tool (i.e. test in education) is considered to be the degree to which the tool measures what it claims to measure.
Thank you for giving me a good laugh. Have a nice day.
