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1). Discuss how a thorough literature search can help improve the validity of the measures we will obtain in the descriptive research phase of a research project.

2). Describe how we could use Figures 6.1 and 6.2 to develop a questionnaire that could be used to measure attitudes and behavior toward a healthy diet. Provide examples of questions that could be generated from this process. Discuss how we would test the questionnaire for reliability and validity.

Construct Figure 6.1. Measurement Hierarchy Construct Reliability Tests Constitutive Definition > Attribute "A" Attribute "B" Attribute "C" Content Validity 3 Tests Operational Definitions Operational Definitions Operational Definitions 3 Reliability Tests Measures Measures Measures 5 Pragmatic (i.e. predictive) Validity Tests 6 Note: Circled numbers represent the stage of the process out- lined in Figure 6.2 that the activi- ty occurs. Other Constructs Measures FIGURE 6.2. Developing Good Measures: The Measurement Process Step 1: Determine the Construct(s) of Interest Step 2: Specify the Construct's Domain Step 3: Establish Operational Definitions Step 4: Collect Data to Test Measures Step 5: Purify the Measures Step 6: Conduct Validity Tests Step 7: Analyze Research Findings Construct Figure 6.1. Measurement Hierarchy Construct Reliability Tests Constitutive Definition > Attribute "A" Attribute "B" Attribute "C" Content Validity 3 Tests Operational Definitions Operational Definitions Operational Definitions 3 Reliability Tests Measures Measures Measures 5 Pragmatic (i.e. predictive) Validity Tests 6 Note: Circled numbers represent the stage of the process out- lined in Figure 6.2 that the activi- ty occurs. Other Constructs Measures FIGURE 6.2. Developing Good Measures: The Measurement Process Step 1: Determine the Construct(s) of Interest Step 2: Specify the Construct's Domain Step 3: Establish Operational Definitions Step 4: Collect Data to Test Measures Step 5: Purify the Measures Step 6: Conduct Validity Tests Step 7: Analyze Research Findings