Telephone interviews generally have a higher response rate than mail questionnaires but lower than face-to-face interviews; their cost is usually less than face-to-face but higher than for mail surveys; and they allow a degree of flexibility when interviewing.

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Telephone interviews are known to have a higher response rate than mail questionnaires, but lower than face-to-face interviews. The cost of telephone interviews is usually less than face-to-face but higher than for mail surveys. Additionally, telephone interviews offer flexibility in interviewing.

Telephone Interviews Generally Have a Higher Response Rate Than Mail