### Answer

The term "risk difference" is also known as **d. Absolute risk reduction**.

**Explanation**:

- **Risk Difference**: This is the difference in risk (or probability) of an event occurring between two groups, often used in clinical trials to assess the efficacy of a treatment.
- **Absolute Risk Reduction (ARR)**: This specifically quantifies the change in risk attributable to a treatment and is synonymous with risk difference.

In contrast:
- **Relative Risk (a)** compares the probability of an event occurring in two groups but does not give direct information on the actual risk change.
- **Number Needed to Treat (b)** indicates how many patients need to be treated to prevent one additional bad outcome.
- **Relative Risk Reduction (c)** expresses the percentage reduction in risk relative to the control group but does not directly measure the actual difference in rates.

Therefore, the correct answer is **d. Absolute risk reduction**.

Question

### Answer

The term "risk difference" is also known as **d. Absolute risk reduction**.

**Explanation**:

- **Risk Difference**: This is the difference in risk (or probability) of an event occurring between two groups, often used in clinical trials to assess the efficacy of a treatment.
- **Absolute Risk Reduction (ARR)**: This specifically quantifies the change in risk attributable to a treatment and is synonymous with risk difference.

In contrast:
- **Relative Risk (a)** compares the probability of an event occurring in two groups but does not give direct information on the actual risk change.
- **Number Needed to Treat (b)** indicates how many patients need to be treated to prevent one additional bad outcome.
- **Relative Risk Reduction (c)** expresses the percentage reduction in risk relative to the control group but does not directly measure the actual difference in rates.

Therefore, the correct answer is **d. Absolute risk reduction**.

Knowee AI · Accepted Answer

### Answer

The term "risk difference" is also known as **d. Absolute risk reduction**.

**Explanation**:

- **Risk Difference**: This is the difference in risk (or probability) of an event occurring between two groups, often used in clinical trials to assess the efficacy of a treatment.
- **Absolute Risk Reduction (ARR)**: This specifically quantifies the change in risk attributable to a treatment and is synonymous with risk difference.

In contrast:
- **Relative Risk (a)** compares the probability of an event occurring in two groups but does not give direct information on the actual risk change.
- **Number Needed to Treat (b)** indicates how many patients need to be treated to prevent one additional bad outcome.
- **Relative Risk Reduction (c)** expresses the percentage reduction in risk relative to the control group but does not directly measure the actual difference in rates.

Therefore, the correct answer is **d. Absolute risk reduction**.

Risk difference is also known asQuestion 12Answera.Relative riskb.Number needed to treatc.Relative risk reductiond.Absolute risk reduction

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