​An Accurate Psychometric Testing Instrument

question 74

Multiple Choice

​An accurate psychometric testing instrument

• A) ​must be both valid and reliable.
• B) ​may be valid but not reliable.
• C) ​may be reliable but not valid.
• D) ​must be given with time limits.

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Definitions:

Extracellular Ions

Ions located outside the cell, in the extracellular fluid, playing key roles in various physiological processes, including the transmission of nerve impulses.

Channels

Pathways through which messages or information are communicated or transferred from one end to another, also referring to structures that allow the passage of ions across cell membranes in biology.

Cell Membrane

The lipid bilayer that encloses a cell, controlling the passage of substances in and out, thus maintaining the cell's integrity and environment.

Protein Molecules

Large, complex molecules that play many critical roles in the body, made up of chains of amino acids.