This True Experimental Design Involves Random Assignment of Subjects to Experimental

question 38

Multiple Choice

This true experimental design involves random assignment of subjects to experimental and control groups,but no pre-measurement of the dependent variable.

• A)Solomon four-group design
• B)before and after with control group
• C)after only with control group
• D)one group pretest and posttest design
• E)none of these

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Definitions:

Nodes of Ranvier

Gaps in the myelin sheath of a nerve fiber where the axon is exposed, allowing for the rapid transmission of nerve impulses through saltatory conduction.

Internodes

Sections of a plant stem between two nodes, where leaves and branches are attached.

Glial Cells

Non-neuronal cells in the central and peripheral nervous systems that provide support and protection for neurons.

Choroid Plexus

A network of blood vessels in each ventricle of the brain, involved in the production of cerebrospinal fluid.