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Statistics

The following resources provide information on general statistics, and on statistics used in clinical practice research for assessment evaluation, group designs, and single-subject designs.

General Resources

Bewitched, Bothered, Bewildered by the p Value? The Bayesian Alternative and Evidence-Based Practice in Communication Sciences and Disorders
ASHA Context blog post by David L. Maxwell and Eiki Satake

The Interactive Statistical Pages
Provides links to online books, tutorials, and software, as well as downloadable software

American Statistical Association's Ethical Guidelines for Statistical Practice
Intended to encourage ethical and effective statistical work, and to assist students in learning to perform statistical work responsibly

Statistical Terms & Use from the Shirley Ryan AbilityLab
Learn about statistical terms used to evaluate outcomes measurement instruments

Clinical Practice Research Resources

Assessment Evaluation Tools

Diagnostics, Screening, and Assessment Research Resources
Resources from ASHA's Clinical Research Education (CREd) Library, including several presentations and interview clips

Calculators for likelihood ratios and confidence intervals, and more

Group Design Tools

Group Study Designs Resources
Resources from ASHA Clinical Research Education (CREd) Library, including presentations from ASHA Clinical Practice Research Institute (CPRI) and other resources

Calculators for effect size and confidence intervals, and more

Single-Subject Design Tools

Single-Subject Experimental Designs resources
Resources from ASHA Clinical Research Education (CREd) Library, including presentations from ASHA Clinical Practice Research Institute (CPRI) and other resources

Simulation Modeling Analysis program on ClinicalResearcher.org
Bootstrapping techniques for statistical significance testing for single-subject designs 

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