Bauhaus-Universität Weimar

Experiments on motor education. 
91 
The reason for dividing the records in choice-time into two series was 
to overcome fatigue, to show the influence of practice, also to note the 
effect that a knowledge of one’s previous record, as well as the records of 
others, would have upon the choice-time. 
Table V. 
Group I. 
Subject. 
A 
p. e. 
a 
b 
B 
p. e. 
a 
b 
c 
p. e. 
Britan 
274 
53 
3 
2 
261 
37 
i 
4 
225 
35 
Alexander 
242 
33 
5 
i 
252 
26 
2 
2 
194 
19 
Cleland 
316 
30 
2 
0 
271 
34 
0 
0 
223 
23 
Matsumoto 
3°i 
45 
2 
3 
277 
33 
0 
I 
192 
21 
Geiser 
349 
23 
2 
0 
352 
23 
0 
0 
244 
37 
Taylor 
328 
30 
4 
0 
260 
50 
i 
i 
223 
27 
Mitchell 
349 
55 
3 
0 
369 
35 
i 
0 
252 
35 
White 
297 
53 
3 
0 
312 
3° 
3 
4 
156 
21 
McAllister 
314 
24 
2 
i 
3°4 
19 
i 
0 
242 
19 
Sincerbeaux 
3°3 
28 
i 
2 
291 
3° 
0 
0 
224 
19 
Average 
3°7 
38 
2.7 
0.9 
297 
32 
0.9 
1.2 
00 
t''» 
0* 
26 
Group II. 
Johnson 
252 
44 
3 
O 
197 
21 
2 
I 
121 
9 
Richards 
181 
3° 
2 
I 
127 
13 
Barnard 
209 
30 
3 
I 
243 
33 
4 
O 
129 
17 
Adriance 
257 
28 
i 
O 
209 
23 
2 
2 
147 
13 
Boardman 
219 
43 
3 
O 
171 
14 
Fincke 
260 
20 
3 
O 
230 
25 
I 
O 
154 
12 
Thomas 
284 
33 
i 
O 
165 
17 
Hord 
171 
3i 
3 
I 
220 
19 
2 
O 
160 
is 
Average 
242 
32 
2.4 
0.4 
220 
24 
2.2 
0.6 
147 
14 
Difference, I—II 
65 
6 
o-3 
0-5 
77 
8 
1-3 
0.6 
131 
12 
Group I, those without physical training. 
Group II, athletes : sprinters, hurdlers, and pole-vaulters. 
A, complex reaction-time, first experiment, ave. of ten records. 
B, complex reaction-time, second experiment, ave. of ten records. 
C, simple reaction to sound, ave. of twenty records. 
a, number of times of false reaction. 
b, number of failures to react. 
p. e., probable error. 
The unit of measurement is lv = 0.001s. 
The differences show most clearly the superiority of the trained athlete 
over the untrained man in the time of both complex and simple reactions
        

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