During Development of an Instrument to Measure Self-Esteem, the Nurse

During development of an instrument to measure self-esteem, the nurse researcher administered the instrument to individuals who were substance abusers and to individuals who were not substance abusers and anticipated a significant difference in scores. This method of establishing construct validity is categorized as what?

A) Factor analysis
B) Convergent validity
C) Discriminant validity
D) Contrasted-groups approach

Correct Answer:

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