<s>
A	O
separation	B-General_Concept
test	I-General_Concept
is	O
a	O
statistical	O
procedure	O
for	O
early-phase	O
research	O
,	O
to	O
decide	O
whether	O
to	O
pursue	O
further	O
research	O
.	O
</s>
<s>
It	O
is	O
designed	O
to	O
avoid	O
the	O
prevalent	O
situation	O
in	O
early-phase	O
research	O
,	O
when	O
a	O
statistically	O
underpowered	B-General_Concept
test	O
gives	O
a	O
negative	O
result	O
.	O
</s>
<s>
Aickin	O
M	O
.	O
(	O
2004	O
)	O
"	O
Separation	B-General_Concept
Tests	I-General_Concept
for	O
Early-Phase	O
Complementary	O
and	O
Alternative	O
Medicine	O
Comparative	O
Trials	O
"	O
.	O
</s>
