sampling_spr09 - Introduction to Introduction Survey...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Introduction to Introduction to Survey Sampling Survey Sampling Karen Foote Retzer Survey Research Laboratory www.srl.uic.edu
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2 Survey Research Laboratory Census: Gathering information about every individual in a  population Sample: Selection of a small subset of a population Census or sample?
Background image of page 2
3 Survey Research Laboratory Why sample instead of taking a census? Why sample instead of taking a census? Less expensive Less time-consuming More accurate Samples can lead to statistical inference  about the entire population
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
4 Survey Research Laboratory Probability vs. non-probability sample Probability vs. non-probability sample Probability sample: Generalize to the entire population Unbiased results Known, non-zero probability of selection Non-probability sample: Exploratory research Convenience Probability of selection is unknown
Background image of page 4
5 Survey Research Laboratory Target population Target population Unit of analysis:  Individual/household/city Geography:  State of Illinois/Cook County/  Chicago Age/gender Other variables Definition: The population to which we want to  generalize our findings.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
6 Survey Research Laboratory Examples of target populations
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 16

sampling_spr09 - Introduction to Introduction Survey...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online