Principles of educational and psychological measurement and evaluation

Manylion Llyfryddiaeth
Prif Awdur:	Sax, Gilbert
Fformat:	Llyfr
Iaith:	English
Cyhoeddwyd:	Belmont, Calif. Wadsworth Pub. Co. c1989.
Rhifyn:	3rd ed.
Pynciau:	Educational tests and measurements > United States.