A Researcher Interested in the Health Problems of People with Schizophrenia

question 19

Multiple Choice

A researcher interested in the health problems of people with schizophrenia interviews only those people diagnosed with the disorder who are in an inpatient facility. The most glaring weakness in this study is ________

• A) the absence of correlational statistics.
• B) the failure to use DSM-5 criteria for health problems.
• C) having an inappropriate control group.
• D) nonrepresentative sampling.

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Definitions:

Capital Asset Pricing Model

A framework that explains the link between the inherent risk and anticipated return on assets, especially equities.

Efficient Frontier

A portfolio optimization concept that outlines the set of optimal portfolios offering the highest expected return for a defined level of risk or the lowest risk for a given level of expected return.

Correlation

A statistical measure that describes the extent to which two variables move in relation to each other, ranging from -1 (perfect negative correlation) to +1 (perfect positive correlation).

Portfolio Weight

The proportion of the total value of an investment portfolio that is attributed to each individual investment.