MIL ERE eh En
Table 4
INTER- AND INTRA-INDIVIDUAL DIFFERENCES IN PERFORMANCE--
COMPONENT-MODIFIER SCORES IN PERCENT"
(FOR 16 EXPERIENCED PI's)
Actual High Low Average
Man Score for Man Score for Man Score for Man
A 88 29 47
B 58 LI 47
C T4 AT 46
D 60 22 Ll
E 63 zl 149
F 43 0 17
G 60 0 29
H 53 MT 29
T 71 10 47
J 71 0 20
K 62 13 p
L 55 18 26
M 16 22 43
N 72 22 5
0 58 13 36
P 5 lh 25
%The score = ro A Xx - 100
Expectancy Score
Not only were extensive differences found among individuals, but
a given individual was found to vary appreciably in his ability to inter-
pret different targets. If the assumption is made that, by the use of
the expectancy scoring procedure, the targets on the whole are of approxi-
mately equal difficulty (permitting comparison across targets), then
actual high and low scores for a given man should show his differential
abilities as & photointerpreter. For example, Interpreter J had an
actual high score of 71% on Target 2 and a low score of 0% on Target X,
His average score was 39%.
Archives 6