A Psychologist Tests the Effect of an Incentive Program (I

question 9

Multiple Choice

A psychologist tests the effect of an incentive program (i.e.,positive reinforcement for desired behavior) in a residential treatment facility for delinquent youth.He randomly assigns one building of the large facility to receive the treatment.Residents in a second building serve as a control group.During the course of the one-month study,an event happens in the treatment group that forces full lockdown of the building for one week.The threat to internal validity the psychologist must consider is

• A) selection.
• B) history.
• C) additive effect of selection and history.
• D) contamination.

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Definitions:

Union Contracts

Agreements between employers and labor unions that outline wages, benefits, and working conditions for the union members.

Arbitrator

An independent individual or panel appointed to settle a dispute outside the court system, whose decision is usually binding.

Legally Binding

Agreements or contracts that are enforceable by law, meaning parties must adhere to the agreed terms.

Labor Dispute

A conflict between employees and their employer regarding work conditions or terms of employment.