The Random Digit Dialing (RDD)technique Used Commonly in Conjunction with CATI

question 37

Multiple Choice

The random digit dialing (RDD) technique used commonly in conjunction with CATI studies is based on _____ sampling.

• A) simple random
• B) systematic
• C) stratified
• D) cluster
• E) double

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Definitions:

Rarefaction

A decrease in density and pressure in a medium, such as air or fluid, often related to sound waves.

Displacement

In psychology, it's a defense mechanism where an individual shifts emotional reactions from the original source of distress to a safer target.

Sound Quality

An attribute of auditory perception that allows the differentiation of sounds that have the same pitch and loudness.

Timbre

The quality of a sound that distinguishes it from other sounds of the same pitch and volume.