After reading this chapter, you should be able to:

• Discuss the importance of operationalization in hypothesis measurement.
   
• Explain why measurements of political phenomena must correspond closely to the original meaning of a researcher’s concepts.
   
• Summarize the ways in which accurate measurements must be reliable and valid.
   
• Describe different levels of measurement and their importance of measurement precision.
   
• Identify different types of multi-item measures.