Keppel, Geoffrey, Introduction to design and analysis : a student's handbook / Geoffrey Keppel, William H. Saufley, Jr., Howard Tokunaga. - second edition. - New York : W.H. Freeman, (c)1992. - xix, 626, pages : illistrations ; 25 cm. LCCN: 92001364 Subjects--Topical Terms: Psychology, Experimental--Statistical methods.Psychology--Experiments.Experimental design. LC Class. No.: BF39 / .I587 1992 BF39