Match Each Term with Its Definition

question 22

Multiple Choice

Match each term with its definition.
-Added during a radiologic procedure to improve visualization by changing the density of the structure being assessed

• A)dosimeter
• B)lead shield
• C)roentgen rays
• D)therapeutic radiation
• E)contrast agent
• F)oral cholecystogram
• G)sonography
• H)upper GI series
• I)lower GI series
• J)double contrast

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Definitions:

Demand Characteristics

Any aspects of a study that communicate to the participants how the experimenter wants them to behave.

Validity

The extent to which a test, measurement, or research accurately represents what it aims to measure.

Reliability

The consistency and dependability of a measurement, test, or instrument over time or across different conditions or observers.

External Validity

The degree to which an experimental design actually reflects the real-world issues it is supposed to address.