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adjusted amperes apparatus arithmetic mean attention average axis binding post blocks boys and girls chart child chronoscope circuit color column connected constant cord tone curve decrease determined difference direction discrimination distance drum dynamometer E. W. Scripture experimenter fact fatigue figures finger fork gain given hallucinations hundredths illusion increase indicate influence intensity interval judgment kymograph laboratory lever locomotor ataxia marker measurements median plane mental ments method metronome motor moved movement muscles muscular number of experiments observer Peirce's criterion perceived sound perception Physiol pitch placed position practice pressure probable error Psych psychological rapid react reaction reaction-time records resonance tone screw secondary coil sensation series of experiments slide statistical mean variation stimulus Table taken tapping telegraph key telephone tests tion trials tube tuning-fork varies vowel Weber's law weight wire Yale
الصفحة 49 - I," said the Sparrow, "With my bow and arrow, I killed Cock Robin." Who saw him die? "I," said the Fly, "With my little eye, I saw him die.
الصفحة 69 - ... instruments, what forms of cavities or other conditions are essential to the production of these sounds, after which, by comparing these with the various positions of the human organs, it might be possible, not only to deduce the explanation and reason of their various positions, but to separate those parts and motions which are destined for the performance of their other functions, from those which are immediately peculiar to speech (if such exist).
الصفحة 13 - I'll be the clerk. Who'll carry the link? I, said the linnet, I'll fetch it in a minute, I'll carry the link.
الصفحة 94 - The curves for reaction time gave the most positive results showing that the brighter the child the more quickly he is able to act. In discrimination the same relation is true but to a less degree. ... Of time memory it may be said in general that the brighter the child the more accurate his sense of time.
الصفحة 77 - The first term may be translated as "change in pitch of the voice," the second as " continuous change," and the last as "change by steps." The continuous change he considers to be characteristic of speech as opposed to song. " Now the continuous movement is, we assert, the movement of conversational speech, for when we converse the voice moves through a space in such a manner as to seem to rest nowhere.
الصفحة 139 - Application of modern psychological principles to educational subjects ; the psychological methods as modified for school use ; outlines of the psychology of touch, its use in education ; motor abilities, accuracy of movement, fundamental principles of writing and drawing ; hearing, training the ear...
الصفحة 139 - Participants in this course are either investigators or assistants. For assistants the object is such a training in accurate introspection, observation, experimenting and the art of research as is desirable for the general psychologist.
الصفحة 122 - The general conclusion seems to be that fencing does not develop mental quickness more than scientific pursuits, but it does develop to a high degree the rapidity of executing movements. It would be important to determine if this holds good of the other sports and exercises, or if some of them are especially adapted to training mental quickness.
الصفحة 82 - FOURIER'S series is the proper treatment. But when the pitch of the mouth tone is high, and each succession of vibrations occupies only a small fraction of the complete period, we may agree with HERMANN that the resolution by FOURIER'S series is unnatural, and that we may do better to concentrate our attention upon the actual form of the curve by which the complete vibration is expressed...
الصفحة 55 - The significance of such percentages is that they give us a true standard for the comparative influence of practise on different individuals" (page 61). That part of Amberg 's method which was modified was, instead of averaging the n — 1 different percentile values, to weight each one, multiplying the first by n — 1, the second by n — 2, etc., adding the products and dividing by (n...