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This eBook from the Gutenberg Project consists of approximately 678 pages of information about Harvard Psychological Studies, Volume 1.
Per cent. 7 40 0 7 0 20 6 50 0 25 0 6
B.
B^{1-4}    1     1(1) 0     0              0     0(1)  0     0
B^{6-8}    1     2    1     2    1    1    1     0     1     0    1    0
B^{9-12}   0     2(1) 0     0(1) 0    0(1) 0(1)  2     0     2    0    1
B^{13-16}  1     3    1     1    1    1    1     2     0     1    0    1
Total      3     8(2) 2     3(1) 2    2(1) 2(1)  4(1)  1     3    1    2
Per cent. 19    57   13    21   13   13   13    27     7    20    7   13
Ho.
B^{1-4}¹   3     2(1) 2     2(1) 1    0(1) 1(2)  1(2)  1(2)  0(2) 0(2) 0(2)
B^{6-8}    1     1(1) 1     0(1) 1    0    0     1(1)  1     1    0    1
B^{9-12}   0(1)  1    0(1)  1    0(1) 0    1     1     1     1    0    0
B^{13-16} cubed 0     0    0     0    0    0    0(1)  4     0(1)  2    0(1) 0
Total      4(1)  4(2) 3(1)  3(2) 2(1) 0(1) 2(3)  7(3)  3(3)  4(2) 0(3) 1(2)
Percent.  33    30   25    23   17    0   17    58    25    33    0    8
Mo.
B^{1-4}    3     3    3     1    4    1    0     2     0     2    0    2
B^{5-8}    1     4    1     1    1    2    1     2(2)  1     1(2) 1    1(2)
B^{9-12}   2     4    2     4    1    4    0(1)  3(1)  1(1)  3(1) 1(1) 2
B^{13-16}  2(2)  4    2(2)  4    2(2) 2    1     4     1     4    1    4
Total      8(2) 15    8(2) 10    8(2) 9    2(1) 11(3)  3(1) 10(3) 3(1) 9(2)
Percent.  57    94   57    63   57   56   13    85    20    79   20   69

   ¹Four presentations in learning.
    squaredFive presentations in learning.
    cubedFive days’ interval instead of two.

In the following summary the recall after two days is combined from Tables I. and II. for the three subjects M, S and Hu, there being no important difference in the conditions of experimentation.  For the three other subjects this summary is merely a resume of Table II.  The recall after nine and sixteen days in Table II. is omitted, and will be taken up later.  The figures are in all cases based on the remainders left after those couplets in which indirect associations occurred were eliminated both from the total number of couplets learned and from the total number correctly recalled. E.g., in the case of nouns, M learned, in all, 42 couplets in the A and B sets, but since in 3 of them indirect associations occurred, only 39 couplets are left, of which 21 were correctly recalled.  This gives 54 per cent.

SUMMARY OF RECALL AFTER TWO DAYS.—­FROM TABLES I. AND II.

            N. O. V. M.
  M. 54 per cent. 62 per cent. 63 per cent. 61 per cent. 
  S. 8 " 21 " 7 " 12 "
  Hu. 11 " 30 " 5 " 59 "
  B. 19 " 57 " 13 " 27 "
  Ho. 33 " 30 " 17 " 58 "
  Mo. 57 " 94 " 13 " 85 "
  Av. 30 per cent. 49 per cent. 20 per cent. 50 per cent.

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