A Researcher Administers a Reading Test to a Group of Fourth

question 47

Multiple Choice

A researcher administers a reading test to a group of fourth graders at the beginning of the school year.During the year,the students receive an intensive program designed to improve reading skills.At the end of the year,the reading test is given again,and a large improvement in test scores is discovered.What type of study is this?

• A) One-group posttest-only design
• B) One-group pretest-posttest design
• C) Non-equivalent control group design
• D) Time series design

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Definitions:

Nitrogen Gas

A diatomic molecular gas (N2) that constitutes 78% of the Earth's atmosphere, colorless, odorless, and mostly inert.

Nitrogen Monoxide

A colorless gas with the formula NO; it is an important signaling molecule in the body and contributes to various biological processes.

Reaction Rate

The speed at which a chemical reaction occurs, typically expressed in terms of the concentration of reactants consumed or products formed over time.

Surface Area

The total area that the surface of an object occupies, impacting its chemical reactivity and physical interactions.