Robert B. Ammons and Carol H. Ammons, The FULL-RANGE PICTURE VOCABULARY TEST (1948). After earning a Ph.D. in clinical and experimental psychology from the University of Iowa, Robert Bruce Ammons ...
Peabody Picture Vocabulary Test developed by Lloyd M. Dunn (1917-2006) and his wife, Leota Dunn (1917-2001). Lloyd Dunn was Director of the Mental Retardation Research Training Program at Peabody ...
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