Emory NRSG 710 Guest Lectures: Fall 2025

by Melinda Higgins, PhD; https://melindahiggins.netlify.app/

Statistics Support - Part 1 (09/16/2025)
- Approaches to Data Analysis - Melinda Higgins, PhD
  - Slides and Video
  - Supplemental Materials - Sample Size, Power and Effect Sizes
- Stats Lab: Tables and Figures - Jordan Pelkmans
Statistics Support - Part 2 (10/07/2025)
- Regression Analysis in Health Outcomes Research
Statistics Support - Part 3 (11/11/2025)
- Multivariate Modeling

Statistics Support - Part 1 (09/16/2025)

Approaches to Data Analysis - Melinda Higgins, PhD

Dr. Melinda Higgins will not be in person today as she is attending the Posit (formerly RStudio) Conference in Atlanta, GA.

However, please review these presentations and her accompanying video lecture. Right Click and Save As or Download the files linked below to view the PPT (PowerPoint) slides

NOTE: Slides from Wenhui (Vivian) Zhang, PhD are shared here from NRSG 710 Fall 2024 classes for reference as well.

Slides and Video

Supplemental Materials - Sample Size, Power and Effect Sizes

Power, Sample Size Lecture and Materials - by Melinda Higgins
- see the PPT slides - slides 29, 33, 35, 41, and 49 give the sample sizes needed to achieve 80% power at 5% level of significance for the most common statistical tests, correlation and linear and logistic regression models.
- for example, you need a sample size of ~ 80-120 (approximately) to detect a moderate effect size (doesn’t matter which test or model) in general
Converting Effect Sizes and Interpretation
- https://www.psychometrica.de/effect_size.html - go to item 14 to convert between different effect sizes
- https://www.psychometrica.de/effect_size.html - also see item 16 for “Table of interpretation for different effect sizes””

Stats Lab: Tables and Figures - Jordan Pelkmans

In class today, Jordan Pelkmans ONR Biostatistician and Jordan’s Profile Link will work with you to begin laying out the descriptive statisics and perhaps other group comparisons to describe your dataset for your NRSG 710 project. You will begin building “Table 1” for your projects.

Statistics Support - Part 2 (10/07/2025)

Regression Analysis in Health Outcomes Research

Melinda Higgins will be in class today covering regression methods for Health Outcomes Research. The PPT slides and video lecture are provided below.

Regression Analyses and Interpretation by Wenhui (Vivian) Zhang, PhD
Regression Analyses Presentation by Melinda Higgins, PhD - TO BE ADDED LATER

Statistics Support - Part 3 (11/11/2025)

Multivariate Modeling

Melinda Higgins will be traveling this week presenting at the AHA (American Heart Association) Scientific Sessions Conference. However, her materials, PPT slides and video lecture are provided below.

Multivariate Modeling Wenhui (Vivian) Zhang, PhD
MV Modeling Presentation by Melinda Higgins, PhD - TO BE ADDED LATER
Video Lecture by Melinda Higgins, PhD - TO BE ADDED LATER