Messick, S. (1986). The once and future issues of validity: Assessing the meaning and consequences of measurement.
Chicago-Zitierstil (17. Ausg.)Messick, Samuel. The Once and Future Issues of Validity: Assessing the Meaning and Consequences of Measurement. Princeton, NJ, 1986.
MLA-Zitierstil (9. Ausg.)Messick, Samuel. The Once and Future Issues of Validity: Assessing the Meaning and Consequences of Measurement. 1986.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.