Chapter 4: Sampling and Investigating Hard Data

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Chapter 4 Sampling and Investigating Hard Data

• Instructor Paul K Chen

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Topics

• The Needs for Sampling
• Sampling Design
• Kinds of Information Sought in Investigation

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The Needs for Sampling

• Containing costs
• Speeding up the data gathering
• Improving effectiveness
• Reducing bias

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Sampling Design

• Four steps
• Determine the data to be collected or described
• Determine the population to be sampled
• Choose the type of sample
• Decide on the sample size

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Kinds of Information Sought in Investigation

• Types of hard Data (other than interviewing and
• observation
•  Analyzing Quantitative Documents
• Reports used for decision making
• Performance reports
• Records
• Data capture forms

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Kinds of Information Sought in Investigation

• 2.  Analyzing Qualitative Documents
• Memos
• Signs on bulletins boards or in work areas
• Corporate Web sites
• Manuals
• Policy handbooks