Somers Et Al

question 108

Multiple Choice

Somers et al. (2006) reviewed the results of 41 international epidemiological studies and found that the one-year and lifetime prevalence rates for total anxiety disorders were _____ respectively.

• A)3)1% and 6.6%
• B)7)4% and 14.1%
• C)10.6% and 16.6%
• D)11.2% and 18.2%

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Definitions:

Point Estimate

A single value or statistic that is used to estimate the value of a population parameter.

Population Proportions

The fraction or percentage of a population that exhibits a specific characteristic or attribute.

Standard Error

The standard deviation of the sampling distribution of a statistic, providing a measure of the precision of the estimated population parameter.

Interval Estimate

An estimate of a population parameter that specifies a range of possible values within which the parameter is expected to lie, often expressed with a level of confidence.