Fill in the table below for columns A and B. The table shows different associati
ID: 2924210 • Letter: F
Question
Fill in the table below for columns A and B. The table shows different associations where Factors X and Z are being measured for their effect on an outcome. For each effect measure there are shown three results: a result with Factor X only (X+Z-), a result with Factor Z only (X-Z+), and the Observed Joint Effect for both factors (X+Z+). In column A, indicate whether the interaction is positive or negative, and in column B, indicate whether the interaction is additive or multiplicative. If no interaction is present, put “None” in columns A and B.
Effect Measure
Effect of Factor X
(X+ Z-)
Effect of Factor Z
(X- Z+)
Observed Joint Effect
(X+Z+)
A
Positive or negative?
B
Additive or multiplicative?
Attributable Risk
20.0 / 1000
15.0 / 1000
60.0 / 1000
Positive
Relative Risk
3.0
2.0
4.0
Relative Risk
2.0
3.0
6.0
Effect Measure
Effect of Factor X
(X+ Z-)
Effect of Factor Z
(X- Z+)
Observed Joint Effect
(X+Z+)
A
Positive or negative?
B
Additive or multiplicative?
Attributable Risk
20.0 / 1000
15.0 / 1000
60.0 / 1000
Positive
Relative Risk
3.0
2.0
4.0
Relative Risk
2.0
3.0
6.0
Explanation / Answer
Effect Measure
Effect of Factor X
(X+ Z-)
Effect of Factor Z
(X- Z+)
Observed Joint Effect
(X+Z+)
A
Positive or negative?
B
Additive or multiplicative?
Attributable Risk
20.0 / 1000
15.0 / 1000
60.0 / 1000
Positive
Additive
Relative Risk
3.0
2.0
4.0
Positive
None
Relative Risk
2.0
3.0
6.0
Negative
None
Effect Measure
Effect of Factor X
(X+ Z-)
Effect of Factor Z
(X- Z+)
Observed Joint Effect
(X+Z+)
A
Positive or negative?
B
Additive or multiplicative?
Attributable Risk
20.0 / 1000
15.0 / 1000
60.0 / 1000
Positive
Additive
Relative Risk
3.0
2.0
4.0
Positive
None
Relative Risk
2.0
3.0
6.0
Negative
None
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