Skip Navigation Bar
 

National Information Center on Health Services Research and Health Care Technology (NICHSR)

spacer
spacer
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
blue arrow
spacer
blue arrow facing left Previous   Next blue arrow

Introduction to Health Services Research : A Self-Study Course

Module 5: Quality Filtering and Evidence-Based Medicine and Health (page 12a of 15)
Introduction | Sampling | Assignment | Assessment | Analysis | Interpretation | Extrapolation

 

EBP Form for Evaluating the Literature

Category
Response
(Put your responses to each of the questions in the spaces below).

Study Question

  • What is your study question or questions?
 

Study Design

 
Sample
  • Who was studied?
  • What was the sample size? Is this an appropriate number of people for the project?
  • more on Samples and sampling
 
Assignment
  • Were the people in the study assigned to groups?
  • What groups were compared?
  • Examine the table that describes the people in each group. Check to see that they are similar in age, socioeconomic status, health characteristics, and others (excluding the factors being studied).
  • Were confounders indicated? How were they dealt with?
  • more on Assignment
 
Assessment
  • How will these patient outcomes be defined and measured?
  • Are measurements accurate and complete?
  • Is there any evidence of recall bias?
  • Is there any indication of "measurement errors"?
  • Is the data complete and suitable for measuring the question?
  • If the researchers compared outcomes of specific procedures across hospitals were the patients similar? Case-mix might be different in different hospitals.
  • more on Assessment
 

Analysis

  • Analysis will answer three main questions
    • How strong was the association between variables?
    • What is the likelihood of getting the results from the sample if there was no relationship between variables in the larger population from which the sample came?
    • Were the groups in the study different in any way that could affect the results?
  • more on Analysis
 

Interpretation

  • Was a causal relationship supported by the data?
  • What was the relative risk?
  • Was the association consistent across different groups?
  • more on Interpretation
 

Extrapolation

  • Have the authors of the studies you found generalized too much from their data?
  • Have the authors extend the data farther than the data supports?
  • more on Extrapolation
 
blue arrow facing left Previous   Next blue arrow
spacer
spacer