Group presentation overview

For research/data presentations some things you could describe:

Brief background of the research

Description of the data being collected in the study

• Sample size, replicate structure (biological, technical etc.)
• Distribution of data, if possible to estimate
• Potential sources of unwanted/confounding variation

Hypothesis being tested in the study

Statistical tests/models used for data analyses

• If using a bioinformatics tool, describe as best you can what test is used by the tool
  (e.g. DESeq2 uses a GLM)

Results/interpretation of data analyses

• Effect sizes/feature importance
• Significance of effects
• Visualization of results and error

Consider throughout the presentation concepts from class
For example:

• Power
• Multiple test correction
• One/two-sided tests
• Assumptions of tests
• Covariates
• Biological v technical replicates
• Effect size v significance
• Appropriate tests/models
• Outliers or other interesting aspects of your data

For paper presentations some things you could consider

:

Brief overview of the study and the main findings of the study

Description of how statistics were reported in the study

• Did they report tests used for every statistical analysis, and whether the test was one- or two-sided?
• Did they report p-values as well as effect sizes for their analyses?
• Did they report which type of error bars were used?
• Did they report the number of samples used in each analysis? Did they specify whether the samples were independent biological or technical replicates?

Description of how data was displayed in the study

• What types of graphs/plots did they to display the data?
• Were individual data points shown on the plots?
• Were error bars shown on the plots?

Description of study design

• Was there any information about study design included in the manuscript?
• Were power calculations performed and if not was there any information about how sample size was selected?

Overall thoughts on the use of statistics

• In your estimation did the authors do a thorough job of reporting statistical analyses? If not, what more could they have done?
• In your estimation did the authors do a thorough job of reporting their study design? If not, what more could they have done?

Note: some journal families require ‘reporting summaries’ with the manuscript – these are usually provided as supplementary material, and may help you evaluate the manuscript particularly for study design