1. Quantitative Methods Chapter 4 Fall 20101Community Research Methods (Chapter 4)

2. Quantitative Methods Fall 20102  Address quantity or amount of phenomenon Community Research Methods (Chapter 4)

3. Common Characteristics 1. Measurement, Comparisons 2. Data = Numbers 3. Cause & Effect 4. Generalization 5. Standardized Measures Fall 2010The Aims of Community Research (Chapter 3) 3

4. What is Measurement?  Refers to assignment of numbers to objects or events according to specific rules  Ex: How was the movie?  Answer: it was a 9 out of 10 Conceptual Variables Measured Variables

5. Conceptual Variables Measured Variables Numbers that represent conceptual variables  Abstract ideas of research

6. Successful Marriage Love Conceptual Variables $ spent on first date # years married Measured Variables

7. Common Characteristics Fall 20107  Standardized instruments  Reliability:  Validity: Community Research Methods (Chapter 4)

8. Quantitative Description  Correlation & Causation  Community Surveys  Epidemiology  Mapping Physical & Social Environments Fall 2010The Aims of Community Research (Chapter 3) 8

9. Experimental Social Intervention Fall 20109  Designing & evaluating social programs  True experiments (randomizing differences)  Nonequivalent comparison group designs (matching or controlling for differences)  Dropout Prevention Program as nonequivalent design Community Research Methods (Chapter 4)

10. Mixed Methods Designs Fall 2010The Aims of Community Research (Chapter 3) 10

11. What do drivers do around the time of a traffic jam? Fall 201011 Community Research Methods (Chapter 4)

12. Anne Mulvey (2002)  Lowell Case Study  15 year study  Safety & Quality of Life Fall 2010The Aims of Community Research (Chapter 3) 12

13. Practice: Match the following columns 1. Quantitative Research 2. Qualitative Research A. Sensitivity to participants’ interpretations B. Standardization of measurement Fall 2010The Aims of Community Research (Chapter 3) 13