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Essentials of Marketing Research. Chapter 7: Survey Research. SURVEYS ASK RESPONDENTS FOR INFORMATION USING VERBAL OR WRITTEN QUESTIONING RESPONDENTS = A REPRESENTATIVE SAMPLE OF PEOPLE. SURVEYS. Standardization Ease of Administration Ability to tap the “unseen”
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Essentials of Marketing Research Chapter 7: Survey Research
SURVEYS ASK RESPONDENTS FOR INFORMATION USING VERBAL OR WRITTEN QUESTIONING RESPONDENTS = A REPRESENTATIVE SAMPLE OF PEOPLE SURVEYS
Standardization Ease of Administration Ability to tap the “unseen” Suitability for statistical analysis Sensitivity to subgroup differences Quick, Inexpensive Efficient, Accurate Flexible Advantages of Surveys
POOR DESIGN IMPROPER EXECUTION Research Manager’s Task = Total Error Minimization PROBLEMS
Tree Diagram of Total Survey Error Random Sampling Error Total Error Systematic Error (bias)
A STATISTICAL FLUCTUATION THAT OCCURS BECAUSE OF CHANCE VARIATION IN THE ELEMENTS SELECTED FOR THE SAMPLE RANDOM SAMPLING ERROR
SYSTEMATIC ERROR RESULTS FROM SOME IMPERFECT ASPECT OF THE RESEARCH DESIGN OR FROM A MISTAKE IN THE EXECUTION OF THE RESEARCH SYSTEMATIC ERROR
Tree Diagram of Total Survey Error Administrative Error Systematic Error (bias) orNon-sampling bias Respondent Error
SAMPLE BIAS - WHEN THE RESULTS OF A SAMPLE SHOW A PERSISTENT TENDENCY TO DEVIATE IN ONE DIRECTION FROM THE TRUE VALUE OF THE POPULATION PARAMETER SAMPLE BIAS
Tree Diagram of Total Survey Error Non-response Error Respondent Error Response Bias
A CLASSIFICATION OF SAMPLE BIAS RESULTING FROM SOME RESPONDENT ACTION OR INACTION NONRESPONSE BIAS RESPONSE BIAS RESPONDENT ERROR
NONRESPONDENTS - PEOPLE WHO REFUSE TO COOPERATE NOT-AT-HOMES SELF-SELECTION BIAS OVER REPRESENTS EXTREME POSITIONS UNDER REPRESENTED INDIFFERENT NONRESPONSE ERROR
Tree Diagram of Total Survey Error Deliberate Falsification Response Bias Unconscious Misrepresentation
A BIAS THAT OCCURS WHEN RESPONDENTS TEND TO ANSWER QUESTIONS WITH A CERTAIN SLANT THAT CONSCIOUSLY OR UNCONSCIOUSLY MISREPRESENT THE TRUTH RESPONSE BIAS
Tree Diagram of Total Survey Error Acquiescence bias (agree with all Qs) Extremity bias (always extreme response) Interviewer bias (interviewer presence) Auspices bias (halo affect) Social desirability bias
Tree Diagram of Total Survey Error Administrative Error Systematic Error (bias) Respondent Error
IMPROPER ADMINISTRATION OF THE RESEARCH TASK BLUNDERS CONFUSION NEGLECT OMISSION ADMINISTRATIVE ERROR
Tree Diagram of Total Survey Error Data Processing Error Sample Selection Error Interviewer Error Interviewer Cheating
PERSONAL INTERVIEWS DOOR-TO-DOOR SHOPPING MALL INTERCEPTS TELEPHONE INTERVIEWS SELF-ADMINISTERED QUESTIONNAIRES COMMUNICATING WITH RESPONDENTS
Door-to-Door Personal Interview Speed of Data Collection Moderate to fast Geographical Flexibility Limited to moderate Respondent Cooperation Excellent Versatility of Questioning Quite versatile
Door-to-Door Personal Interview Questionnaire Length Long Item Non-response Low Possibility of Respondent Lowest Misunderstanding Degree of Interviewer High Influence of Answer Supervision of Interviewers Moderate
Door-to-Door Personal Interview Anonymity of Respondent Low Ease of Call Back or Follow-up Difficult Cost Highest Special Features Visual materials may be shown or demonstrated; extended probing possible
Mall Intercept Personal Interview Speed of Data Collection Fast Geographical Flexibility Confined, urban bias Respondent Cooperation Moderate to low Versatility of Questioning Extremely versatile Questionnaire Length Moderate to Long
Mall Intercept Personal Interview Item Non-response Medium Possibility of Respondent Lowest Misunderstanding Degree of Interviewer Highest Influence of Answers Supervision of Interviewers Moderate to high
Mall Intercept Personal Interview Anonymity of Respondent Low Ease of Call Back or Difficult Follow-up Cost Moderate to high Special Features Taste test, viewing of TV Commercials possible
MAIL SURVEYS Speed of Data Collection Researcher has no control over return of questionnaire; slow Geographical Flexibility High Respondent Cooperation Moderate--poorly designed questionnaire will have low response rate Versatility of Questioning Highly standardized format
MAIL SURVEYS Questionnaire Length Varies depending on incentive Item Non-response High Possibility of Respondent Highest--no interviewer Misunderstanding present for clarification Degree of Interviewer None--interviewer absent Influence of Answer Supervision of Interviewers Not applicable
MAIL SURVEYS Anonymity of Respondent High Ease of Call Back or Follow-up Easy, but takes time Cost Lowest
How to Increase Response Rates for Mail Surveys • Write a “Sales Oriented” Cover Letter • Money Helps • - As a token of appreciation • - For a charity • Stimulate Respondents’ Interest with Interesting Questions • Follow Up • Keying questionnaires with codes • Advanced Notification • Sponsorship by a Well-known and Prestigious Institution
Foot-in-the-door Personalization Anonymity Response deadline Incentives Length of survey Survey size, reproduction and color Type of postage outgoing return envelopes Ways to Increase Mail Survey Response
MAIL PLACE OF BUSINESS DROP-OFF COMPUTERIZED E-MAIL INTERNET OTHER VARIATIONS SELF-ADMINISTERED QUESTIONNAIRES
Telephone Surveys Speed of Data Collection Very fast Geographical Flexibility High Respondent Cooperation Good Versatility of Questioning Moderate
Telephone Surveys Questionnaire Length ModerateItem Non-response MediumPossibility of Respondent Average Misunderstanding Degree of Interviewer Moderate Influence on Answer Supervision of Interviewers High, especially with central location WATS interviewing WATS: Wide-Area Telecommunications Service
Telephone Surveys Anonymity of Respondent Moderate Ease of Call Back or Follow-up Easy Cost Low to moderate Special Features Fieldwork and supervision of data collection are simplified; quite adaptable to computer technology
CROSS-SECTIONAL LONGITUDINAL TIME PERIOD FOR SURVEYS
Researcher’s Resources and Objectives Time horizon Budget Desired quality of data collected Generalizability vs. Completeness Factors Determining Choice of Survey Method
Respondent Characteristics Incidence rate (% in target population) Willingness to participate (suspicion, privacy, interest) Ability to participate (time, qualified) Diversity of respondents (problems with selection or response probabilities) Factors Determining Choice of Survey Method
Question Characteristics Complexity of tasks (or props needed) Amount of information per respondent (and type of information needed) Topic sensitivity (e.g., hygiene, charity contributions, illicit behaviors) Factors Determining Choice of Survey Method
Attitudes attitude comes before behavior three parts: what a person knows about a topic awareness (aided and unaided recall) how a person feels about a topic positive/negative and intensity of feeling likelihood the person will take action based on the attitude past, present and future behavior Potential Survey Topics
Image ask what characteristics are most important to the subject comparison across groups to reveal differences Decisions What was the process used to make the decision? What information sources were used? What criteria was used for evaluation? Potential Survey Topics
Needs (or Wants) Needs, desires or preferences Find out relative importance of needs. Behavior what respondents did or did not do the timing of the behavior the persistency of the behavior Potential Survey Topics
Lifestyles lifestyle patterns identified by activities, interests, opinions and possessions of the respondents Affiliations family groups reference groups Potential Survey Topics
Demographics Variables such as age, gender, income, marital status, education, employment, etc. demographic groups often differ significantly on issues demographics can be used to identify market segments Potential Survey Topics
Over sampling of some populations Privacy issues New Technology fax e-mail internet virtual reality Survey Trends