critically analyzing research resources
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Critically Analyzing Research Resources
Professional Practices IOctober 2008
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Outline of Today’s Lecture
1. Why do we do this?2. Dental Hygienists and Research3. Evidence-Based Practice4. What is a Research Article5. Parts of a Research Article6. Websites
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Principle of Least Effort
In our usual day-to-day lives, we will try to solve problems and make decisions in such a way to minimize the total work we have to do
We need to do this because we don’t have time, the money, or the interest
Companies, organizations and workers need to recognize this when dealing with the public
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Science/Academic Research When you do real
research, the goal is not speed, but accuracy
A different, more sophisticated and rigorous approach is required
This takes time and effort you would never usually do
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Dental Hygienists and Research Because DH was considered women’s
occupational work, it was not treated seriously until the 1990s
As professional organizations build up (CDHA), some people start becoming actively involved
But, the number of RDH who do research is extremely low, and not much better for reading it
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Canadian RDHs who do Research
Sandra Cobban, Associate Professor, Dental Hygiene Program, University of Alberta
Salme Lavigne, Associate Professor and Director School of Dental Hygiene,University of Manitoba
Marilyn Goulding, Niagara College
Joanne Clovis,Associate Professor, School of Dental Hygiene, Dalhousie University
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Trying to promote research
Cobban and Clovis have written about the need for RDHs to use research and become researchers
So far results are disappointing But the CDHA and other bodies are
now on the verge of implementing Evidenced Based Practice
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Evidenced Based Practice
A way for professionals (especially medical) to make decisions by looking at evidence and rate it by how scientifically sound it is
Evidence comes from scientific literature and clinical practice
Want to stop using rules of thumb, “the way it was always done”
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How does EBD help
Research shows what are the best or newest ways of doing treatments, using medications, dealing with diseases, etc.
Helps you avoid making the wrong decisions!
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Focal Infection Theory Good example of how research changes A very popular theory in the 1920s and 30s,
thought that many diseases originated in the mouth
Millions of healthy teeth were extracted, until the theory was discredited
Since the 1990s, new research has been showing oral-systemic connections
Where will this go?
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Will RDHs accept EBP?
Obstacles include – not educated enough, can’t access material, hard to communicate with colleagues, too willing to defer to the dentist, demand for profit for business
Being in independent practice poses new challenges, and new demands
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The problems in finding The problems in finding resourcesresources
1. There is a huge amount of material
2. It is growing fast3. Much of it is useless
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How much is there?
About 500 dental journals are published each year
About 43 000 dental-related articles are published each year
Our rate of published literature is doubling every ten years
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Any good news…a little For dental hygienists,
there are just a few scientific journals exclusively for them
Also a few other magazines for dental hygienists
These will be your core reading materials for the rest of your career
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Other Academic Journals Journal of the
Canadian Dental Association
British Dental Journal
Journal of Dental Research
Canadian Medical Association Journal
New England Journal of Medicine
Journal of the American Medical Association
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What is a Scientific Paper?
It shall be this:1. New2. True3. Important
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New
It offers some information that is previously unknown
Can be a very tiny bit of knowledge (and usually is)
Originality is important – is the paper addressing the issue in a new way, using new methods and new technology
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True
Are the conclusions coming from reliable observations combined with sound logic
Can this experiment be done again with the result being the same conclusion
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Important
Highly subjective The key is will this article be useful for
further research Up to ¼ of all scholarly articles will
not be referenced again Citation analysis is one way to go –
some journals do better than others
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Articles have a structure
Title should be informative, concise and
graceful trend is to present the conclusion in the
title
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Author
Some authors are better, more famous, come with baggage
Should have their address for correspondence, questions, feedback
A lot of articles have multiple authors – who is responsible for what
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Date of Submission and Acceptance
Was done mostly as a way to give credit to authors that they made the discovery first
When articles used to be just printed, it could be a long time for them to be ready
Now with online editions, articles come faster
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Abstract or summary
An abstract should tell the reader why a study was done, what was done, what was found, and what was concluded
A Summary focuses on the principle findings and conclusions
Abstracts are becoming more structured
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Introduction
States what the problem is, what we already know about it, and why we should care
Often the conclusion of the article can be found here too
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Materials and methods This will give the reader enough
information they need to repeat the experiment
What was the strategy behind the research, what problems they had to deal with
If a paper’s conclusions are seen to be wrong, the usual cause is poor methods
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Results
Presents the findings Often includes data, figures and
tables
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Discussion
This is where they ‘sell’ the paper Uses the results and combines with
other research to develop conclusions
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References
Footnotes, endnotes, done in various styles
Allows the reader to track down other research
Best way for finding material
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Other Types of Articles
Case Studies examining a particular case or small
number of cases Usually for something new or different
Review of the Field Article just looks at what has been
previously published Very useful for scholars
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Biases in paper
Who is paying for the study? This is a huge issue
Also be aware of national, ethnic, and personal biases
‘Rush to publish’ can also effect the paper’s quality
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Non-Academic Journals RDH, Hygienetown,
JPH, Oral Health Mix of articles,
some with research Good for reviewing
information
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Using the Internet as a source
Dental Hygienists’ don’t use it enough – yes, you read that right
Difficulty in finding the right sources is the main problem – can you trust the source or not?
Certain websites are just the online version of print material
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How to judge web pages Author – who created the site Accuracy – does it provide references, peer-
review process Currency – is the pages updated, revised,
have a date Objectivity – is this real content or
advertising Coverage – when it comes from a print
source, does it have all the same material Purpose – why does this site exist –
educate, sell, entertain
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Why can’t Google find me an article
Search engines like Google don’t tell you what is the best site, just the most popular
Google Scholar is better Some journals have free material,
others you need to pay for
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Further Resources Critical Thinking: Understanding and
Evaluating Dental Research, by D.M. Brunette (RK 80 .B78 1996)
“Research Fundamentals,” by S. Cobban and J. Clovis, CJDH 40:4 (July-August, 2006)
“Knowledge Sources Used by Alberta Dental Hygienists: A Pilot Study, by S. Cobban and J. Profetto-McGarth, CJDH 41:4 (July-August, 2007)