A Functional Syncytium of Cardiac Muscles Cells Means That They

question 215

Multiple Choice

A functional syncytium of cardiac muscles cells means that they

• A)are striated
• B)exhibit muscle tone
• C)have a short refractory period
• D)lack the stimulation of a pacemaker
• E)work as a unit mechanically and electrically

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Definitions:

Construct Validity

The extent to which a test or instrument accurately measures the theoretical, non-observable constructs it is designed to assess.

Predictive Validity

The degree to which a measurement or test score forecasts future results on a connected outcome.

Concurrent Validity

A measure of how well a particular test predicts outcomes based on comparison with other measures that are administered at the same time.

Face Validity

The extent to which a test appears to measure what it is supposed to measure, based on an informal and subjective evaluation.