Lisa's Study Assessed the Effects of an Intervention to Facilitate

question 49

Multiple Choice

Lisa's study assessed the effects of an intervention to facilitate the math skills of low-achieving second grade learners. She administered a treatment to the students in the form of structured computer lesson and found that students' skills increased. With which validity threat should Lisa be most concerned?

• A) History
• B) Statistical regression
• C) Instrumentation
• D) Mortality

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Definitions:

Norris-LaGuardia Act

A 1932 U.S. federal law that restricted employers' power to prevent unionization and limited the issuance of injunctions in labor disputes.

Federal Courts

Courts established by the federal government of a country, in the United States, for instance, they have the authority to rule on legal disputes based on constitutional and federal law.

Non-Union Support Pledge

A commitment made by employees not to join or form a labor union, sometimes requested by employers in certain workplaces.

Illegal Actions

Activities that are forbidden by law, including in the context of labor and employment, such actions could involve unauthorized strikes or discrimination.