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Communication Sciences & Disorders

This is a guide to resources relating to audiology and speech-language pathology.

Evidence-Based Practice

Evidence-Based Practice brings together clinical expertise, evidence and client perspectives to make decisions about the care and treatment of individuals.

When discussing how to apply evidence-based practice to a clinical practice, ASHA outlines the following steps:

  • Frame your clinical question
  • Gather evidence
  • Assess the evidence
  • Make your clinical decision

For more from ASHA on evidence-based practice, see their Evidence-Based Practice page.


Your Librarian

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Katrina Rouan
169 Teaching Commons
Purdy Library

Framing Your Clinical Question

To help keep your question focused and relevant, try using the PICO framework:

  • Population - How are you defining the group? What are their characteristics? Consider diagnosis, age, severity, etc.
  • Intervention - What treatment, screening, assessment, etc. are you considering?
  • Comparison - What is your main alternative to the intervention? (sometimes there isn't one)
  • Outcome - What do you want to improve, measure, achieve?

Before gathering evidence, consider additional/alternative keywords for each part of your PICO question.

Levels of Evidence

From the Penn State University Libraries ScholarSphere:

Evaluating Intervention Evidence In Hudson, M.W., and DeReuiter, M. (2021). Professional Issues in Speech-Language Pathology and Audiology, Fifth Edition. Plural Publishing, Inc.

Table 7-7 Levels of Evidence for Intervention Research In Nelson, Lauren K., and Gilbers, J. L. (2021). Research in Communication Sciences and Disorders: Methods for Systematic Inquiry, Fourth Edition. Plural Publishing, Inc.

Databases that Contain Evidence-Based Studies

Other Sources of Evidence-Based Research

Evidence-Based Journal

Note: Articles published within the last 15 months will need to be requested via Interlibrary Loan