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Descriptive and Causal Research Designs
5 McGraw-Hill/Irwin Copyright © 2010 by the McGraw-Hill Companies, Inc. All rights reserved.
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Learning Objectives_1 Explain the purpose and advantages of survey research designs Describe the types of survey methods Discuss the factors influencing the choice of survey methods
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Learning Objectives_2 Explain experiments and the types of variables used in causal designs Define test marketing and evaluate its usefulness in marketing research
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Selecting a Descriptive Research Design
Nature of problem Research questions Research objectives
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Goal of Survey Research Methods
Provide facts and estimates that can be used to make accurate predictions about relationships between market factors and behaviors gain insights to understanding the relationships and differences verify or validate the existing relationships
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Advantages/Disadvantages of Survey Research Design
Accommodates large sample sizes Generalizable to target population Easy to administer and record answers Facilitates advanced statistical analysis Disadvantages Questions that accurately measure variables can be difficult to develop In-depth data difficult to obtain Low response rates
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Errors in Surveys Sampling error Nonsampling error
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Forms of Nonsampling Error
Respondent errors Nonresponse errors Response errors
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Types of Survey Research Methods
Telephone- administered Self- administered Person- administered
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Person-Administered Surveys
Advantages Adaptability Rapport Feedback Response quality Disadvantages Possible recording errors Interaction errors High expense
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Mall Intercepts
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Telephone Surveys Advantages Interviewers or CATI technology
Less expensive than face to face methods Geographic flexibility Callbacks possible Fast Suitable for large samples Disadvantages Difficult for complex tasks, long surveys, or those using visual aids Perception of telemarketing Change in behavior (voic , caller ID, mobile vs land lines) Limited to domestic research
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Self-Administered Types of Survey Research
Respondent Reads Survey Questions and Records Answers Without Assistance Mail Survey Mail Panel Drop-Off Internet
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Advantages/Disadvantages of Self-Administered Surveys
Low cost per survey Respondent control No interviewer-response bias Anonymity in response Disadvantages Minimal flexibility High nonresponse rates Potential response errors Slow data acquisition Lack of monitoring
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Greenfield Online: A Web Surveyor
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Usage Rates for Survey Methods
Internet % CATI % Hybrid % Face-to-face intercepts 11.5% Mail % Other %
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Selecting a Survey Method
Situational characteristics Task characteristics Respondent characteristics
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Situational Factors Affecting Choice
Budget Completion time frame Quality requirements Data completeness Data generalizability Data precision
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Task Factors Difficulty of the task Stimuli needed Amount of
information Topic sensitivity
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Respondent Characteristics
Diversity Incidence Rate Respondent Participation
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Experiments Causal research designs that can identify cause-and-effect relationships between variables A variable is an observable element or attribute of an item or event that can be measured
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Types of Variables in Experimental Designs
Independent Variables Dependent Variables Values manipulated by researcher Control Variables Measures of effect Extraneous Variables Conditions that make the design a true experiment Uncontrolled, unmeasured variables that may affect dv
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Validity and Reliability Concerns
Internal Validity External Validity
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Field Experiments: Considerations
Realism and control Time frame Costs Competitive reactions
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Test Marketing Test marketing is the use of a controlled field experiments to gain information on market performance indicators
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Marketing Research in Action: Riders Brand Launch
What Lee’s goal for conducting an extensive test market for Riders jeans? Identify and explain the strengths and weaknesses associated with the test market process used Should the company test market Riders using an Internet format?
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