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Interaction term
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Mathematics
Area of mathematics
Probability and statistics
Statistical modelling
Normal linear model
Linear regression
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An interaction term lets the effect of one predictor depend on another. In
E
[
Y
∣
X
,
Z
]
=
β
0
+
β
1
X
+
β
2
Z
+
β
3
XZ
,
(180)
the slope with respect to
X
is
β
1
+
β
3
Z
.
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(7)
Linear regression
Normal linear model
Statistical modelling
Probability and statistics
Area of mathematics
Mathematics
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