Training and Consultancy - Introduction to Critical Appraisal

Introduction

Research papers can appear authoritative simply because they have been published, but publication alone does not guarantee that research is well designed, appropriately analysed or relevant to practice. Critical appraisal provides a systematic way of looking beyond the abstract and conclusions and asking whether the evidence really supports the claims being made.

This introductory course provides participants with a practical framework for reading and assessing research literature critically. Participants will consider the research question, study design, methods, results and conclusions, and explore some of the questions that should be asked before deciding how much confidence to place in a study's findings.

The course introduces the randomised controlled trial and related research concepts, together with some of the statistical information commonly encountered when reading scientific papers. Concepts such as p values and confidence intervals are considered from the perspective of interpretation rather than calculation, helping participants understand what the results of a study are actually telling them.

A significant part of the session involves applying these principles to a scientific paper using a structured approach based on the Critical Appraisal Skills Programme (CASP) format.

Objectives

By the end of the course, participants will be able to:

Explain the difference between reading research and critically appraising it.
Understand the purpose of critical appraisal within evidence-based practice.
Recognise some of the principal features of different research approaches.
Understand the basic principles of randomised controlled trials.
Recognise common sources of bias and limitations within research.
Understand the purpose of some of the statistical information commonly reported in research literature.
Interpret basic statistical concepts including p values and confidence intervals.
Consider whether the results of a study support its conclusions.
Assess the relevance and applicability of research findings.
Apply a structured approach to critically appraising a published scientific paper.

Training Methodology

The course combines tutor-led explanation with discussion, practical examples and structured appraisal of a scientific paper.

The statistical content is designed for participants without a statistical background. The emphasis is on understanding what commonly reported results mean, recognising the questions that should be asked of them and developing sufficient confidence to interpret research findings more critically.

Participants will work through a paper systematically, considering aspects such as the question being addressed, study design, methodology, potential bias, results and conclusions. The session uses an approach based on CASP, providing participants with a framework that can subsequently be applied when reading other research.

Organisational Impact

Organisations increasingly rely on published evidence when developing services, policies, guidelines and interventions. The existence of research evidence, however, does not automatically mean that the evidence is reliable or appropriate to the decision being made.

Developing critical appraisal skills can help staff make more informed use of research and reduce the likelihood of decisions being influenced simply by headline findings, statistical significance or an author's conclusions.

The course encourages a questioning but balanced approach to research evidence, helping participants recognise both the strengths and limitations of published studies.

Personal Impact

Participants will develop greater confidence when reading research literature and a practical structure for deciding which parts of a paper deserve particular attention.

For participants who find the statistical sections of research papers difficult, the course provides an accessible introduction to some of the terminology and results they are most likely to encounter. The aim is not to turn participants into statisticians, but to make statistics less of a barrier to critically assessing research.

Participants will also become better equipped to distinguish between what a study demonstrates, what its authors conclude and what can reasonably be applied to their own setting.

Who Should Attend?

This course is suitable for anyone who needs to read, interpret or use research evidence, including:

Clinicians and healthcare professionals
Public health professionals
Researchers
Analysts
Commissioners
Service managers
Quality and improvement professionals
Policy and strategy staff
Postgraduate and doctoral students
Anyone involved in evidence-based practice or decision-making

The course is particularly suitable for participants who are relatively new to critical appraisal or who want to develop greater confidence in reading scientific literature.

Course Outline

The course will explore areas including:

- The principles and purpose of critical appraisal
- Understanding research questions and study design
- Randomised controlled trials and related concepts
- Validity, bias and potential sources of error
- Understanding research results
- Introduction to statistical significance
- P values and confidence intervals
- Interpreting findings and conclusions
- Considering the relevance and applicability of research
- Structured approaches to critical appraisal
- Practical appraisal of a published research paper
- Applying critical appraisal skills in practice

Duration:

3.5 hours

Pre-requisites:

None

Pre-course preparation

Please note: Participants will be required to undertake some pre-reading of a scientific paper before attending the course. The paper will form the basis of the practical critical appraisal undertaken during the session.

Certification

Upon successful completion of this course, delegates will receive a John Varlow | Training and Consultancy Certificate of Completion. This certification recognizes participants' understanding of how to write a structured research proposal and the key components of the research process.