Assume That Respondents Aged 70 or Older Are Only One-Third

question 48

Multiple Choice

Assume that respondents aged 70 or older are only one-third as likely to be in an Internet sample as their actual incidence in the population. Using the propensity scoring method, their responses would be:

• A) excluded from the sample to avoid any potential bias.
• B) included as is (only once) to keep the data truly representative.
• C) counted three times in the sample.
• D) included selectively (about one-third of the time) in the sample.
• E) included alternatively.

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