Chapter 9- The Fundamentals Of Sampling Flashcards
If we conduct a census, will we eliminate all study error?
No, because as we get more people involved people might not answer questions properly (data error)
Total sampling error=
Sampling error + non-sampling error
What is a population of interest?
Entire group under study as defined by the research objectives
What is the typical criteria used in defining the population?
Geographic area, demographic profile, time, experience/usage
What is a sampling unit?
The smallest entity that will provide one response. The “what” is to be counted. Ex. People, consumers, users, households, organizations, employees, voters, etc.
What is a sampling frame?
A list of the population from which you will draw the sample
What are the three criteria for sampling frames?
- All inclusive
- Exclusive
- Includes accurate information that can be used to contact selected individuals
What are some sampling frame errors?
Subset/omission, superset, intersection
What are the three sampling frame options?
Physical list, conceptual list, and geographic list
What is a conceptual list?
A procedure producing a result equivalent to a physical listing)
When we sample a population we use a statistic to make an inference about…
The parameter
