## HAP 719: Advanced Statistics I## Exercises in Ordinary Regression## Learning ObjectivesAfter completing the activities this module you should be able to: - Clean data
- Estimate missing values
- Fit different types of models to data
- Interpret findings from statistical outputs pertaining to a regression model building technique
## Lecture- See previous lectures on introduction, assumption, missing values and model building using ordinary regression More►
- For a general introduction read Chapter 11 in Statistical Analysis of Electronic Health Records by Farrokh Alemi, 2020 Slides► YouTube► Video►
## AssignmentsAssignments should be submitted in Blackboard. The submission must have a summary statement, with one statement per question. All assignments should be done in R if possible.
- Test assumptions of regression
- Print out the coefficients of the regression.
- What percent of variation of diabetes is explained?
- List variables that take at least 2 years before they have a significant effect on diabetes
- List variables that can affect diabetes in 1 year
Resources for Question 1: - Data Download►
- Yili Lin's Answer► R-code►
- See how the instructor analyzed the same data using network modeling PubMed►
- Shivani Amireddy's Teach One YouTube►
- State a possible research question (hypothesis and null hypothesis) based on the results shown.
- What statistical method was used to analyze the data based on the results shown and why?
- State any statistical assumptions associated with the statistical method used in the analysis.
- What can you conclude about the overall significance of the model?
- Provide an interpretation of the adjusted R square value?
- Provide an interpretation of the statistically significant findings (at an alpha value=0.05).
- Describe potential study implications for elderly individuals who reside in senior living communities based on the study results.
Resources for Question 2: ## MoreFor additional information (not part of the required reading), please see the following links: - Introduction to regression by others YouTube► Slides►
- Regression using R Read►
- Statistical learning with R Read►
- Open introduction to statistics Read►
This page is part of the HAP 819 course on Advance Statistics and was organized by Farrokh Alemi PhD Home► Email► |