Mail and Telephone Surveys ~ Chapter Two Which Is Best: The Advantages and Disadvantages of Mail, Telephone, and Face-to-Face Surveys 39 Obtaining Completed Questionnaires from a Representative Sample, 41 Is there a known opportunity for all members of the population to be included in the sample?, 41 Can the selection of respondents within sample units be controlled?, 45 Can selected respondents be located?, 46 Is substitution of respondents detrimental?,
47 Can adequate response rates be attained?, 49 Can unknown bias from refusals be aooided?, 52 Obtaining Answers to All the Questions One Wants to Ask, 54 How long can the questionnaire be?, 54 What types of questions can be asked?, 57 Is inadequate attention to construction procedures detrimental? 60 Obtaining Accurate Answers, 61 Can social desirability bias be avoided?, 62 Can interviewer distortion and subuersion be aooided?, 63 Can contamination by others be avoided?, 64 Can consultation be obtained when needed?, 65 Administering the Survey, 66 Can the personnel requirements be met?, 66 Can the survey be implemented as fast as desired?, 67 Can the cost be afforded?, 68 Conclusion, 72 Notes, 76 Chapter Three Writing Questions: Some General Principles The Kind of Information Being Sought, 80 Attitudes, 80 Beliefs, 8 1 Behavior, 83 Attributes, 83 The importance of distinguishing among types of information, 84
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