Psychometric properties of an instrument 3: convergent, discriminant, known-groups, and criterion validity

Before evaluating convergent, discriminant, and known-groups validity; it is suggested to design an instrument that reflects hypothetical relationships or differences with other comparator instruments or groups. For criterion validity, a gold-standard instrument measuring the same construct should be carefully selected.

Automated summary

Before evaluating the validity of a measurement instrument, it is important to design an instrument that reflects hypothetical relationships or differences with other comparator instruments or groups. For criterion validity, a gold-standard instrument measuring the same construct should be carefully selected.