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Handling missing data: Multiple imputation for the applied researcher
October 12, 2017 @ 12:00 pm - 4:00 pm$175
A 4-hour workshop taught by Ryan S. Wells, Ph.D.
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Item-missing data is a serious concern for any quantitative researcher. Survey participants regularly skip questions, and administrative data is often incomplete. But what do to about this issue is not always straightforward. Researchers often analyze only complete cases (listwise deletion) or they impute missing information using means or regression analysis. These approaches can lead to biased estimates and artificially small standard errors.
This workshop will help the applied researcher to analyze the extent and patterns of missing data, and to decide how to address this challenge. Most of the workshop will focus on one common but powerful solution to missing data: multiple imputation. This technique has advantages over many other approaches, which will be discussed. At the end of this workshop, participants will understand the decisions, strategies, and code needed to successfully use multiple imputation in their research projects.
By the end of the workshop, participants should understand the problems associated with missing data for quantitative research, as well as options for how to handle such data. Participants will gain specific insight about multiple imputation as an approach to dealing with missing data, including the assumptions and data requirements underpinning the method. By the end of the workshop, participants will understand the decisions, strategies, and statistical methods needed to successfully apply multiple imputation to their projects.
Pricing and schedule
Time: Thursday, October 12, 12PM to 4PM (EST)
Who should attend?
The target audience is researchers who have taken more than one statistics course. Basic knowledge of regression is useful. Those who will benefit the most are those who conduct quantitative research and may encounter missing data in their projects. Software demonstrations will use Stata, but SPSS code and output will also be included for participants who are using SPSS for their research projects.
- What is “missing data?”
- Nature and structure of missing data
- Dangers of missing data
- Possible ways to address to missing data
- Multiple imputation – the basics
- Pooling – Rubin’s Rules
- Number of imputations
- Variable selection / Auxiliary variables
- Comparing observed and imputed results
- Comparing multiple approaches to missing data
- Imputing complex survey or weighted data
- Common mistakes and confusion
- Communicating MI to other audiences