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Surveys ask a respondent for information using verbal or written questioning |
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Respondents are a representative sample of people |
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Gathering information via survey is ... |
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Quick Inexpensive Efficient Accurate Flexible |
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Ways to Administer Surveys |
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Personal interviews ▪ Door‐to‐door ▪ Shopping mall intercepts Telephone interviews Self‐administered questionnaires |
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A trial run with a group of respondents to iron out fundamental problems in the instructions of survey design |
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when the results of a sample show a persistent tendency to deviate in one direction from the true value of the population parameter |
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Questions to be asked in a survey |
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A classification of sample bias resulting from some respondent action or inaction ▪ Nonresponse bias ▪ Response bias |
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Nonrespondents ‐ people who refuse to cooperate -Not‐at‐homes -Self‐selection bias ▪ Over‐represents extreme positions ▪ Under‐represents indifference |
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people who refuse to cooperate |
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A bias that occurs when respondents tend to answer questions with a certain slant that consciously or unconsciously misrepresents the truth |
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A category of response bias that results because some individuals tend to agree with all questions or to concur with a particular position. |
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A category of response bias that results because response styles vary from person to person; some individuals tend to use extremes when responding to questions |
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A response bias that occurs because the presence of the interviewer influences answers. |
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Bias in the responses of subjects caused by the respondents being influenced by the organization conducting the study. |
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Bias in responses caused by respondents’ desire, either conscious or unconscious, to gain prestige or appear in a different social role. |
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Improper administration of the research task
Examples: --Interviewer cheating ‐ filling in fake answers or falsifying interviewers --Data processing error ‐ incorrect data entry, computer programming, or other procedural errors during the analysis stage. --Sample selection error ‐improper sample design or sampling procedure execution. --Interviewer error ‐ field mistakes |
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Double Barreled Questions |
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Asking two questions in one |
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The Multiple Choice Questions |
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Multiple-choice questions have 3 or more exhaustive, mutually exclusive categories
Ex: What is your favorite time of day to study (please check only 1 or 2 answers)? ( ) Morning ( ) Mid-day ( ) Early afternoon ( ) Evening ( ) Late night ( ) Other |
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provides 2 options and is usually a yes/no question. Questions can be displayed in many different formats.
EXAMPLE Have you ever purchased clothing from a website? [ ] Yes [ ] No |
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Semantic Differential (Quiz) |
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offers a bipolar pair of adjectives between which the respondent must choose along some form of scaling (typically a five-point scale). Although respondents do not see number as with the Likert scale, the research assigns the numerical value when analyzing the data. The pairs of words are polar opposites and may be used to discover fine differences in viewpoint. They are often adjectives. |
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an ordered, one-dimensional scale from which respondents choose one option that best aligns with their view along a continuum. There are typically between four and seven options. Five is very common. All options usually have labels, although sometimes only a few are offered and the others are implied. |
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