How Well a Test Measures What It Is Intended to Measure

question 116

Multiple Choice

How well a test measures what it is intended to measure is referred to as the concept of _____________,and ____________ specifically assesses whether the items on a test measure all the knowledge or skills that are assumed to be part of the construct measured by a test.

• A) validity;content validity
• B) validity;construct validity
• C) reliability;internal consistency
• D) reliability;predictive validity

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Definitions:

AC into DC

The process of converting alternating current (AC) into direct current (DC), typically using rectifiers.

Commutator

Strips or bars of metal insulated from each other and arranged around one end of an armature. They provide connection between the armature windings and the brushes. The commutator is used to ensure proper direction of current flow through the armature windings.

Alternator

An electrical generator that converts mechanical energy to electrical energy in the form of alternating current.

Converter

A device that changes the form of an electrical signal or power source, such as converting alternating current (AC) to direct current (DC).