<s>
Multilevel	B-General_Concept
regression	I-General_Concept
with	I-General_Concept
poststratification	I-General_Concept
(	O
MRP	O
)	O
(	O
sometimes	O
called	O
"	O
Mister	O
P	O
"	O
)	O
is	O
a	O
statistical	O
technique	O
used	O
for	O
correcting	O
model	O
estimates	O
for	O
known	O
differences	O
between	O
a	O
sample	O
population	O
(	O
the	O
population	O
of	O
the	O
data	O
you	O
have	O
)	O
,	O
and	O
a	O
target	O
population	O
(	O
a	O
population	O
you	O
would	O
like	O
to	O
estimate	O
for	O
)	O
.	O
</s>
<s>
used	O
survey	O
data	O
from	O
Xbox	B-Protocol
gamers	O
to	O
predict	O
U.S.	O
presidential	O
election	O
results	O
.	O
</s>
<s>
The	O
Xbox	B-Protocol
gamers	O
were	O
65%	O
18	O
-	O
to	O
29-year-olds	O
and	O
93%	O
male	O
,	O
while	O
the	O
electorate	O
as	O
a	O
whole	O
was	O
19%	O
18	O
-	O
to	O
29-year-olds	O
and	O
47%	O
male	O
.	O
</s>
<s>
subsequently	O
used	O
it	O
for	O
estimating	O
the	O
outcome	O
of	O
the	O
2012	O
US	O
presidential	O
election	O
based	O
on	O
a	O
survey	O
of	O
Xbox	B-Protocol
users	O
,	O
and	O
it	O
has	O
also	O
been	O
proposed	O
for	O
use	O
in	O
the	O
field	O
of	O
epidemiology	O
.	O
</s>
