For a Within-Subjects Experiment,one of the Primary Threats to Internal

question 30

Multiple Choice

For a within-subjects experiment,one of the primary threats to internal validity is ____.

• A)​individual differences that may exist within treatment conditions
• B)​individual differences that may exist between treatment conditions
• C)the risk that participation in one treatment condition may influence scores in other treatment conditions
• D)​the risk that one (or more) of the treatment conditions will have no influence on the participants' scores

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Definitions:

Clayton Act

A U.S. antitrust law enacted in 1914, aimed at preventing anticompetitive practices in their incipiency, including price discrimination, exclusive dealing agreements, and mergers.

Celler-Kefauver Act

A U.S. law passed in 1950 aimed at preventing anti-competitive mergers and acquisitions that might reduce competition.

Mergers

The combination of two or more companies into a single entity, typically to increase market share or reduce competition.

Standard Oil Case

A 1911 antitrust case in which Standard Oil was found guilty of violating the Sherman Act by illegally monopolizing the petroleum industry. As a remedy, the company was divided into several competing firms.