A Meta-Analysis of Studies Addressing the Effectiveness of Herbs in the Treatment

question 128

Multiple Choice

A meta-analysis of studies addressing the effectiveness of herbs in the treatment of depression revealed that:

• A) St. John's wort was not more effective than the placebo condition for mild depression.
• B) For severe depressions, St. John's wort was more effective than a placebo.
• C) For severe depressions, St. John's wort was more effective than SSRIs.
• D) St. John's wort was more effective than a placebo if the depression was a mild one.

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Definitions:

Point Estimate

A single value (or point) derived from a sample that best predicts or estimates an unknown population parameter.

Population Proportion

The fraction or percentage of individuals in a population who possess a specific attribute or characteristic.

Unbiased Estimator

An attribute of an estimator that ensures the expected value of the estimate equals the parameter being estimated.

Population Parameter

A numeric value that describes a characteristic of the entire population, such as the mean or standard deviation.