The Harvard Catalyst, the Harvard Medical School Office for Diversity Inclusion and Community Partnership and the Disparities Research Unit at the Massachusetts General Hospital are delighted to sponsor and support a three-day power and sample size workshop. The short course is offered in cooperation with Margarita Alegría, Ph.D., chief of the Disparities Research Unit at the Massachusetts General Hospital and professor in the departments of medicine and psychiatry at Harvard. The short course, taught by Keith E. Muller, Ph.D., professor in the University of Florida College of Medicine, and Deborah H. Glueck, Ph.D., associate professor in the University of Colorado School of Public Health, will give scientists training for selecting a valid sample size for balanced longitudinal and multilevel study designs with normally distributed outcomes. The workshop is accessible to all, from graduate students to senior researchers. Enrollees must have had introductory statistical training and be comfortable with basic hypothesis testing.
The course covers studies with response variables that follow a bell-shaped (normal) distribution, for:
- multilevel designs
- longitudinal designs
- multivariate designs
- combinations of multilevel, longitudinal or multivariate designs
- some kinds of missing data
- We do not cover binary or Poisson outcomes or time-varying covariates
|Harvard Medical School||Ballard Room at Countway Library (HMS)||Tues., Nov. 28 – Thurs., Nov. 30||Tues., Nov. 21|
|Eligible Harvard Students and Fellows selected for scholarship*||Free|
|Harvard and Harvard-affiliated Hospitals and Research Institutes (click here for list of eligible affiliates).||$250|
|Other Registrants (Not affiliated with Harvard)||$1,000|
* Students and fellows interested in attending the course may receive a scholarship with the approval of Dr. Margarita Alegría. Email Sandra Salloum, academic specialist, at SandraSalloum@ufl.edu to begin registration.
|Harvard Students & Fellows Applying for Scholarship||Email Sandra Salloum, academic specialist, at SandraSalloum@ufl.edu to begin registration. Please include a 1-2 paragraph description of your work and relevance of the program. Scholarships are limited.|
|Harvard and Harvard Affiliates||Click Here (select $250 option)|
|Non-Harvard Affiliates||Click Here (select $1,000 option)|
For questions, please contact Sandra Salloum, academic specialist, at SandraSalloum@ufl.edu.
At the end of the workshop, attendees will be able to:
- Understand a framework and strategy for study planning
- Write study aims as testable hypotheses
- Describe a longitudinal and multilevel study design
- Write a statistical analysis plan
- Ensure sufficient sample size for racial or ethnic subgroups for studies of disparities
- Demonstrate the feasibility of recruitment
- Describe expected missing data and dropout
- Write a power and sample size analysis that is aligned with the planned statistical analysis
- Write the design, analysis, power and sample size sections for a grant
- Use expert feedback to improve the product
While the exact content of each workshop will vary, please see the model schedule below for an idea of what is covered each day.
|Day 1: Study Design|
|Day 2: Power and Sample Size Analysis|
|Day 3: Writing the Grant|