Conducting stratified analysis to test for confounding and interaction

Stratified analysis is a powerful statistical approach that allows you to test for confounding and interaction, but unlike logistic regression, it is quite simple and doesn’t distance you from your data. You can ‘see’ the associations and enjoy the insights gained from analysis.This approach is useful when you are interested in testing association between two categorical variables – say exposure and disease – by adjusting for a third categorical variable. If done correctly, it also enables you t

Sourced through Scoop.it from: www.linkedin.com

Read more

Free Online Sample Size Calculations and Visualizations

Statulator is a free online statistical program that conducts statistical analyses, interprets the results and provides suggestions about reporting them. It was made available to general public last week and can be accessed by clicking here.It includes a suite of sample size calculators for six scenarios: estimating a single proportion, comparing two independent proportions, comparing paired proportions, estimating a single mean, comparing two independent means and comparing paired means. All sa

Sourced through Scoop.it from: www.linkedin.com

Read more