18 
Frank Angell. 
judgments average 0,57 sec. as against 0,63 for the qualified (e. g. 
»lighter doubtful«). 
As reagent A1 used less categories of judgment than Bt, his 
results are less scattered. His fluctuations are also less. 
The results of Al’s time measurements are given in table V. 
Two places of decimals is of course, the result of averaging. Times 
of double judgments are not included, as such judgments were 
infrequent. The main object in separating the distracted comparisons 
from the undistracted, is merely to show that the latter have the 
same trend as the former, — quickest for the »sure« judgments, 
and slowest for the »like«. Otherwise, on account of the small 
number of cases it would be better to lump both conditions of atten¬ 
tion together. 
The mean variations of the several categories of judgment with 
each time interval range from 10 to 13 per cent. 
Table V. 
Averages of reaction times (<) for the several time intervals and for the several 
categories of judgment under each interval with (D'n) and without distraction (no D'n)% 
Number of reaction = n. .Reagent : Al. Times given in hundredths of a sec. 
Character 
of judgment 
5 
sec. 
15 
sec. 
30 
sec. 
60 
sec. 
n 
no 
D'n 
n 
no 
D'n 
n 
D'n 
n 
no 
D'n 
n 
D'n 
n 
no 
D'n 
n 
D'n 
t 
t 
t 
t 
t 
t 
t 
Sure...... 
9 
0,74 
17 
0,69 
8 
0,67 
14 
0,63 
8 
0,75 
29 
0,63 
9 
0,68 
Fairly sure. . 
25 
0,80 
16 
0,73 
23 
0,71 
29 
0,75 
22 
0,77 
30 
0,71 
32 
0,75 
Like...... 
6 
0,90 
6 
0,83 
2 
0,85 
7 
0,85 
6 
0,80 
6 
0,77 
8 
0,87 
Doubtful . . . 
5 
0,72 
5 
0,82 
6 
0,80 
4 
0,90 
6 
0,80 
13 
0,87 
9 
0,75 
The indications from this table are that the »sure« judgments are 
the quickest and the »like« judgments the slowest, with the »fairly 
sure« holding an intermediate position. Comparing the time inter¬ 
vals without distraction, we find as far as the figures go, that the 
5 sec. interval takes more time in judging than any other interval 
for every category except »doubtful«. As however the figures do 
not go very far for the separate divisions of the 5 sec. judgments 
it is better to get the general average from all the reaction times 
for each interval without distraction. This gives for 5 sec. — 0,77,