<P> Validity is 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 . The validity of a measurement tool ( for example , a test in education ) is considered to be the degree to which the tool measures what it claims to measure ; in this case , the validity is an equivalent to accuracy . </P>
<P> Validity is 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 . The validity of a measurement tool ( for example , a test in education ) is considered to be the degree to which the tool measures what it claims to measure ; in this case , the validity is an equivalent to accuracy . </P>
the degree to which a test actually measures what it supposed to measure
the degree to which a test actually measures what it supposed to measure
Validity
Validity