Suppose a Researcher Has Trained Two Observers to Rank Participants

question 33

Multiple Choice

Suppose a researcher has trained two observers to rank participants according to their level of frustration when trying to solve a puzzle.What statistic should be used to determine the extent to which the two observers agree in their rankings of frustration?

• A)The Pearson correlation coefficient
• B)The Spearman rank-order correlation coefficient
• C)The point-biserial correlation coefficient
• D)The nonlinear correlation coefficient

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Definitions:

Kinked Demand Curve

A concept in economics describing a situation where a firm's demand curve has a distinct kink due to competitors only matching price increases but not price decreases, leading to price rigidity.

Marginal Cost

The extra expense associated with the production of an additional unit of a product or service.

Kinked Demand Curve Model

A model in economics illustrating how firms in oligopoly markets might maintain stable prices despite changes in cost or demand, due to the asymmetric responses of rivals to price changes.

Price Reduction

A decrease in the selling price of goods or services, often to attract more buyers or respond to market conditions.