If a survey is conducted telephonically, which among the following statements is true?

AIt improves the quality of data

BIt improves the validity of research

CIt reduces the cost of data collection ✓ Correct

DIt makes participants comfortable

Correct answer: (C) It reduces the cost of data collection

Explanation

A telephonic survey chiefly reduces the cost of data collection.

It avoids travel and reaches dispersed respondents quickly and cheaply.

It does not improve data quality; visual cues and rapport are lost.

It does not raise research validity, which depends on design, not medium.

It rarely makes participants more comfortable than a face-to-face setting.

Telephone surveys also risk coverage bias from those without phones.

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