Data Collection - 4. Interviews have a high response rate...

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8/27/11 Data Collection
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8/27/11 Collecting the Information Needed to Answer the 1. Which data to collect 2. How to collect the data 3. Who will collect the data 4. Where to collect the data 5. When to collect the data
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8/27/11 Data Collection Methods 1. Structure 2. Quantifiable 3. Subjective 4. Objective Questionnaires, Interviews, Physical Measures, Observations, Scales, Delphi technique, etc.
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8/27/11 Research Instrument 1. Use an existing instrument 2. Develop a customized instrument The instrument must be Reliable (consistent and accurate) and Valid (instrument measures what it is designed to measure) Device used to gather information
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8/27/11 Questionnaires and Interviews 1. Closed-ended questions 2. Open-ended questions 3. Structured 4. Unstructured (Oral or Written Responses)
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8/27/11 1. Questionnaires are efficient in terms of time, money and ease of administration (anonymity?) 2. Questionnaires may have a low response rate 3. Questionnaires may require subjects to read and write
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Unformatted text preview: 4. Interviews have a high response rate (number is relatively low) 8/27/11 Advantages & Disadvantages 5. Interviews require more time and money (no anonymity) 6. Interviewer-subject interaction may introduce bias 7. Reliability and validity of questionnaires and interviews depend on subjects honest responses 8/27/11 Scales (Ranking Variables) 1. Likert Scale 2. Magnitude Scale 3. Rating Scale Scales are efficient as they can be administered orally or in writing. But there is a bias as respondents tend to agree with statements regardless of content and to be consistent with current views 8/27/11 Observation Quantitative and Qualitative Research 1. Unstructured for qualitative studies 2. Structured Observations involve precise record keeping & Checklists & Time sampling & Rating scales Observer bias or subject to atypical behavio 8/27/11 Delphi Technique 1. Opinions of experts...
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This note was uploaded on 08/27/2011 for the course BCN 6036 taught by Professor Staff during the Summer '08 term at University of Florida.

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Data Collection - 4. Interviews have a high response rate...

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