The Distinctions Between True and Quasi Experiments, in General, Depend

question 48

Multiple Choice

The distinctions between true and quasi experiments, in general, depend upon the degree to which

• A) subjects are randomly assigned to groups
• B) subjects are equivalent from the start
• C) the researcher is able to maintain control over variables
• D) the research findings are generalizable to other subjects, times, and places

Define and identify response and explanatory variables within a research context.

Recognize the implications of not using a control group in experiments.

Understand how the operational definition of variables (e.g., treatments, levels, factors) impacts study design and outcomes.

Identify possible sources of bias and how they might impact the validity of study findings.

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Definitions:

Vesuvius

A well-known active volcano located on the Gulf of Naples in Campania, Italy, famous for its eruption in AD 79 that destroyed the Roman cities of Pompeii and Herculaneum.

Pyroclastic Flows

Fast-moving currents of hot gas and volcanic materials that flow down the slopes of a volcano during an eruption.

Composite Volcanoes

Volcanoes characterized by explosive eruptions and composed of alternating layers of lava flows, volcanic ash, and other volcanic materials.

Eruption Column

A column of hot volcanic ash and gas ejected into the atmosphere during an explosive volcanic eruption.