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As a researcher, it's important to use validated scales to ensure reliability and improve interpretation of research results. The Marketing Scales database provides an easy, unified source to find and reference scales, including information on reliability and validity.
Krista Holt
Senior Director, Research & Design, Vital Findings

replacement

Three statements are used to measure the degree to which a consumer views the utility received from two different forms of a product to be greater than the utility of the best single form.

Six statements with seven-point Likert-type response scales are used to measure the degree to which a person has bought a product because what it replaces is viewed as being degraded to the point of unacceptability, probably due to poor performance. At the other extreme, a purchase is indicated to have occurred because something newer was available that was more desirable than what was replaced. The scale was called nature of purchase decision by Grewal, Mehta, and Kardes (2004).

The three item scale measures a person's desire to continue receiving service from the current provider with which a relationship has already been established. Patterson and Smith (2003) referred to the scale as both propensity to stay with service providers and behavioral intention to continue with present service provider.

Three items are purported to measure "the goal-directness of a functional economic shopper" when the goal is the purchase of a good or service (Roy 1994, p. 146). Two of the items were answered using a five-point Likert-type scale. The response format for the third item was not specified. Roy (1994) referred to the scale as functional economic motivation.