Bauhaus-Universität Weimar

64 
C. E. Seashore, 
gethcr as possible, and, after having tried them back and forth, to inter¬ 
change them in position and again compare them in both directions, 
continuing as long as he thought profitable. Thus the errors of time, 
speed, place, fatigue, practice, surprise, temperature and order were 
fairly eliminated. 
A A 
J B 
J c 
K' 
Subject. 
E 
a 
b 
£ 
a 
b 
^ 1 
1 
3 
(l 
b 
a 
b 
I 
4 
I 
4 
3 
0 
TT 
I 
2 
? 
10 
20 
IO 
20 
11 
5 
3 
A 
7 
5 
A ! 
4 
4 
A 
iS 
15 
20 
i5 
III 
3 
2 
t 
3 
2 
S ! 
I 
2 
s 
15 
15 
15 
15 
IV 
2 
I 
* 
I 
4 
% 
I 
8 
A 
20 
25 
10 
20 
V 
2 
4 
A 
3 
4 
A 
3 
I 
i 
O 
0 
10 
5 
VI 
I 
I 
S 
3 
I 
fi 
8 
3 
3 
A 
20 
20 
15 
15 
VII 
3 
6 
A 
4 
6 
A 
4 
6 
A 
IO 
20 
15 
15 
VIII 
4 
2 
A 
3 
3 
A 
2 
2 
t 
20 
10 
15 
15 
IX 
I 
2 
* 
6 
2 
A 
2 
7 
A 
15 
10 
10 
5 
X 
3 
4 
T°T 
s 
8 
A 
6 
9 
A 
20 
25 
10 
20 
XI 
2 
? 
3 
2 
0 
I 
1 
î 
15 
15 
i5 
15 
XII 
3 
I 
è 
4 
4 
A 
3 
3 
A 
15 
10 
5 
s 
XIII 
3 
3 
A 
I 
6 
A 
3 
4 
A 
20 
15 
0 
5 
XIV 
2 
2 
§ 
2 
2 
0 
6 
3 
I 
i 
25 
25 
10 
15 
XV 
I 
2 
2 
7 
A 
I 
5 
A 
15 
10 
-5 
5 
XVI 
7 
i 
A 
7 
s 
A 
2 
4 
1 
Tïï 
IO 
20 
IO 
5 
XVII 
I 
2 
? 
I 
2 
0 
T 
3 
3 
2 
T® 
15 
20 
15 
20 
XVIII 
5 
7 
A 
6 
8 
A 
4 
5 
0 
1S 
5 
10 
10 
5 
XIX 
3 
2 
% 
6 
8 
tV 
3 
2 
0 
7 
15 
25 
15 
20 
XX 
3 
6 
A 
2 
7 
A 
4 
9 
0 
TT 
10 
J-5- 
20 
20 
A 
2.9 
2.7 
0.9 
3-6 
4-4 
ïVr 
2-7 
I 3-9 
08 
Ttf 5 
14-5 
17.2 
II.2 
13.0 
d 
I.I 
i-3 
1-4 
1-7 
I.I 
1 2.0 
4-2 
5-5 
4-4 
5.6 
M 
2.8 
4.0 
3-3 
15-8 
12.1 
m 
1.2 
1 
5 
1-5 
4-8 
5-0 
The unit of measure is the gram. 
JA, JB, JC, the thresholds for the 
respective pairs. 
K, overestimation of A when measured 
by C. 
Kunderestimation of B when measured 
by C. 
a, the first measurement. 
b, the second measurement. 
E, the proportion of errors made ; the 
numerator expresses the number of so- 
called wrong judgments made out of the 
total number expressed by the denominator. 
A, average ; M, the mean of the two 
averages. 
d, mean variation ; m, the mean of the 
two mean variations. The mean variation 
for the series may be found by dividing 
these by 6.3.
        

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