. Carnegie Institution of Washington publication. THE PROCESS OF MEMORIZING. 129 Believing that, in English at least, real words represent the least individual differences in apprehension, we abandoned the nonsense syllables for real English words. In some respects at least it is a dis- tinct advantage not to complicate the word series in memory tests by a superposed letter series. In the case of words, we may assume that the association between their spelling and the pronunciation is familiar and fixed. Drawing from an equally well associated and equally revivable mass of possible material, t
. Carnegie Institution of Washington publication. THE PROCESS OF MEMORIZING. 129 Believing that, in English at least, real words represent the least individual differences in apprehension, we abandoned the nonsense syllables for real English words. In some respects at least it is a dis- tinct advantage not to complicate the word series in memory tests by a superposed letter series. In the case of words, we may assume that the association between their spelling and the pronunciation is familiar and fixed. Drawing from an equally well associated and equally revivable mass of possible material, the process of memorizing words is not complicated by the necessity for memorizing the constitution of the members of the series. It is concerned solely with their serial connection. APPARATUS AND TECHNIQUE. Normal series of 12 four-letter words were printed on strips of white paper, 52 cm. in length, so that each word occupied the same proportion of a 4 cm. space. Such a slip encircled the 50 cm. Blix-Sandstrom kymograph drum, leaving 2 cm. spare space to indicate the beginning of the series, as well as to accommodate the paper clip that held the strip of words to the drum. A circular screen, with a slit large enough to expose two letters at a time, covered the drum and consequently the series of words, except as each word was exposed letter by letter when the drum revolved. The screen and electrical connections are shown diagrammatically in figure FIG. 26.—Diagram of the connections for memory experiment. As each word was perceived the subject spoke it into the voice key (for description of this key, see Chapter III, p. 97), and so broke the circuit of an electric marker that wrote the record of the reaction on the same cylinder which carried the words. Since both stimulus and reaction records were on the same evenly rotating drum, the correlation of the two was permanent and mechanically accurate. Any advance of the reaction record along its base-line on the second rev
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