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Professor Plum devises a new personality test and administers it to a large and representative group of people, finding a wide distribution of scores on the test. Two months later he administers a second form of the same test to the same people and finds that most people receive almost the same score they had the first time. He should conclude that the test has
Price Elasticity of Demand
An indicator of the sensitivity of demand for a product to variations in its price.
Advertising-Sales Ratio
The ratio of advertising expenditure to sales revenue, used as a measure of the effectiveness and intensity of advertising efforts.
Consumer Demand
The desire and ability of consumers to purchase goods and services at various prices.
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A proprietary online legal research service and software that provides legal professionals with access to an extensive database of legal resources.
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