A Researcher Notes a Reliability Score of 0

question 7

Multiple Choice

A researcher notes a reliability score of 0.75 between two observers in a clinical drug trial evaluating whether the drug decreases anxiety.This score means that

• A) there is 25% random error.
• B) there is 75% random error.
• C) this is an acceptable measure of reliability.
• D) this measurement tool is not reliable.

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Definitions:

Return On Investment

A performance measure used to evaluate the efficiency or profitability of an investment, calculated by dividing the benefit of an investment by its cost.

Sales Margin

The difference between the selling price of a product or service and its cost, expressed as a percentage of sales.

Capital Turnover

A ratio that measures the efficiency of a company's use of its capital in generating revenue.

Invested Capital

The total amount of money put into a company by its owners and creditors for use in the business operations, often used as a metric in financial analysis.