University of Iowa Studies in Psychology, المجلد 31

ability accuracy amount of retention apparatus audiometer auditory imagery average coördination correlation curve degree of learning disc discrimination double fusion effect experimenter factors father frequency Galton whistle hearing increase individual intensity interval Lambda Group limit loop maxima and minima median plane memory ment mental methods of measurement Mother's motor movement musical capacities musical expression nodes number of presentations observer Paternal side pedigree charts phonograph piano pitch plays piano Poor position and sequence practice Psychol Psychological range rank reaction recall recognition reconstruction record relearning sang score Seashore serial action series of experiments Shelley Shelley's sing sharp singer singing soprano speed standard stimuli sung superior syllable Table talent profile group tapping tion tonal tonal memory tone tonoscope trials tuning forks values variation varying vibrato visual voice wave length written reproduction ZUEHL