Dr Mims Clarifies That a Pretest-Posttest Design Is a Within-Subject

question 133

Multiple Choice

Dr. Mims clarifies that a pretest-posttest design is a within-subject design rather than a between-subjects design because:

• A) participants are measured twice, once at the beginning of the study and again at the end of the study.
• B) participants are repeatedly measured on the dependent variable over time.
• C) participants are measured on the dependent variable after exposure to each level of the independent variable.
• D) fewer research participants are needed for adequate statistical power.

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Definitions:

Transient Regions

Areas or phases that exist for a short duration, often changing rapidly in their properties or characteristics.

Positive and Negative Charges

Fundamental aspects of atoms and molecules, with positive charges carried by protons and negative charges by electrons.

Oxidizing Agent

A chemical substance that can accept electrons from another substance, thereby oxidizing the latter in a redox chemical reaction.

Carbon Monoxide

A colorless, odorless, and tasteless gas that is toxic to humans and animals when encountered in higher concentrations.