82 
Content 
Method 
Stage and Description 
Ordering Effect (1) (2) (3) (4) (5) (6) 
of Achievements 
St. Wt. H. St. Wt. H. 
IIIA2IIB(a) Fails to exclude 
weight and height (perhaps 
(a) 
because of uncertain ordering) 
4/0 4/040 + - - + (+ + 0 - -) 
and method has one shaky point 
pr 
and no untested inferences, or 
(0 + + - -) 
(b) excludes one of weight and 
height with difficulty and method 
is shaky throughout with no 
untested inferences, or 
(b) 
(c) -) 
succeeds in finding correct 
+ + + 
+ or + 0 0 0 - 
effect of each factor, but only 
with difficulty for each one, and 
(- 0) 
method also shows one shaky 
point, or (d) fails exclude weight 
 
and height and finds effect of 
(+ +-- 
*) 
string only with difficulty, but 
+ ++ 0 0 0 + 
method has no shaky aspects 
or 
(0 + + - -) 
although there is no untested 
inference 
(0)