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Informed Health Choices Podcasts
Each episode includes a short story with an example of a treatment claim and a simple explanation of a Key Concept used to assess that claim
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Informed Health Choices Primary School Resources
A textbook and a teachers’ guide for 10 to 12-year-olds. The textbook includes a comic, exercises and classroom activities.
| 0 Comments | Evaluated![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/10/springer2-1-150x150.jpg)
Ebm@school – a curriculum of critical health literacy for secondary school students
A curriculum based on the concept of evidence-based medicine, which consists of six modules.
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Know Your Chances
This book has been shown in two randomized trials to improve peoples' understanding of risk in the context of health care choices.
| 0 Comments | Evaluated![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/Thinking-150x150.jpg)
Philosophy for Children (P4C)
P4C promotes high-quality classroom dialogue in response to children’s own questions about shared stories, films and other stimuli.
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McMaster Evidence-Based Clinical Practice Workshop Resources – Therapy module
This is the therapy module resources provided to the attendees at the McMaster Evidence-Based Clinical Practice Workshop.
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McMaster Evidence-Based Clinical Practice Workshop Resources – Systematic review module
The Systematic review module resources provided to the attendees at the McMaster Evidence-Based Clinical Practice Workshop.
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Evidence for the frontline: A report for the Alliance for Useful Evidence
Jonathan Sharples’ introduction to evaluation in education, policing and other public services.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/Thinking-150x150.jpg)
The DIY evaluation guide
The Educational Endowment Foundation’s DIY Evaluation Guide for teachers introduces the key principles of educational evaluation.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/11/alliance_logo-150x150.jpg)
Using research evidence: a practice guide
NESTA’s guide to using research evidence to inform decisions in policy and practice.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/11/Nature-logo-150x150.jpg)
Policy: twenty tips for interpreting scientific claims
This list will help non-scientists to interrogate advisers and to grasp the limitations of evidence.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/Understanding-Health-logo-1-150x150.jpg)
Understanding Health Research: evidence-based medicine, practice and policy
Evidence-based medicine, practice and policy are terms used to describe making decisions using scientific evidence.
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Understanding Health Research: are some types of evidence better than others?
Understanding Health Research, a tool for making sense of health studies: are some types of evidence better than others?
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Reading the Medical literature
American College of Obstetricians and Gynaecologists (ACOG) introduction to critical appraisal and evidence-based medicine.
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Suny Downstate; Randomized Controlled Studies
Suny Downstate’s explanation of why random allocation to treatment comparison groups is important.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/11/Ox-Uni-CEBI-150x150.jpg)
What is a meta-analysis? How to use a systematic review
Oxford University’s Centre for Evidence-Based Intervention guide on how to use evidence from systematic reviews.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/11/pharmacist-logo-150x150.jpg)
Evidence-Based medicine in Pharmacy Practice
An article by Suzanne Albrecht on Evidence-Based Medicine in Pharmacy Practice.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/11/omerad-logo-150x150.jpg)
Evaluating relevance
How to evaluate relevance of research in Michigan State University’s Evidence-Based Medicine Course.
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Evidence-based medicine
The European Patients’ Academy web-based introductory course on Evidence-Based Medicine.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/CRUK-logo-150x150.jpg)
Randomisation explained in 1 minute
A 1 minute animation produced by Cancer Research UK, explaining the term ‘randomised trial’.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/10/Randomisation-for-trials1-150x150.jpg)
Teaching Tips: randomisation for trials
Chris Del Mar describes a group exercise that enables students to appreciate how trials work, and how they can go wrong.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/10/Teaching-Tip-regression-to-the-mean1-150x150.jpg)
Teaching Tip: Understanding Regression to the mean in preparation for teaching EBM
Chris Del Mar uses dice to simulate the natural fluctuations in pain, and to illustrate regression-to-the mean by re-testing the outliers.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/08/CochraneUK_1-150x150.jpg)
Evidence for everyday health choices
A 17-min slide cast by Lynda Ware, on the history of EBM, what Cochrane is, and how to understand the real evidence behind the headlines.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/09/Sunn-Skepsis-logo-150x150.jpg)
Sunn Skepsis
Denne portalen er ment å gi deg som pasient råd om kvalitetskriterier for helseinformasjon og tilgang til forskningsbasert informasjon.
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Don’t jump to conclusions, #Ask for Evidence
An introduction to the ‘Ask for Evidence’ initiative launched by ‘Sense about Science’ in 2016.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/09/Spoon-in-champagne2-150x150.jpg)
How can you know if the spoon works?
Short, small group exercise on how to design a fair comparison using the "claim" that a spoon helps retain the bubbles in champagne.
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It’s just a phase
A resource explaining the differences between different trial phases.
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Teach Yourself Cochrane
Tells the story behind Cochrane and the challenges finding good quality evidence to produce reliable systematic reviews.
| 3 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/Bad-Science-150x150.jpg)
Building evidence into education
Ben Goldacre explains why appropriate infrastructure is need to do clinical trials of sufficient rigour and size to yield reliable results.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/Bad-Science-150x150.jpg)
The strange case of the magnetic wine
Ben Goldacre shows how claims for the wine-maturing effects of magnets could be assessed with 50 people in an evening.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/statsic_dragon-lesson-150x150.jpg)
Dragon Lesson Plan to investigate multivariate categorical data
Investigating multivariate data by sorting and organising a set of dragon cards to uncover information about the set.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/Univ-SW-Australia-150x150.jpg)
Bias – the biggest enemy
University of New South Wales Medical Stats Online Tutorial 5 addresses ‘Bias - the biggest enemy’.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/10/generationr_featured2-150x150.jpg)
Generation R – Pictionary research activity
GenerationR’s version of Pictionary using research concepts instead of usual game cards, allocated in different levels of difficulty.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/10/Gen-R-150x150.jpg)
Generation R – Clinical trials card-sorting exercise
Card-sorting exercise developed by GenerationR to familiarise children and young people with jargon terms used by clinical researchers.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/ukcrc-logo-1-150x150.jpg)
Clinical Research Workshop
‘Clinical Research Workshop’ developed for young people by the Centre of the Cell.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/euebm-150x150.jpg)
Basic principles of randomised trials, and validity
A 8-min talk on ‘Basic principles of Randomised Trials, and Validity’, illustrated by 15 slides, with notes.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/euebm-150x150.jpg)
Defining clinical questions
An 8-min talk on ‘Defining Clinical Questions’ illustrated by 10 slides, with notes.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2017/01/Univ-W-Australia-150x150.jpg)
Appraising the evidence
Six key slides produced by the University of Western Australia to introduce critical appraisal.
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Detectives in the classroom
Five modules of materials for promoting epidemiology among high school students.
| 0 Comments![CEBM logo](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/cebm-150x150.jpg)
10 Components of effective clinical epidemiology: How to get started
PDF & Podcast of 1-hr talk by Carl Heneghan (Centre for Evidence-Based Medicine, Oxford) on effective clinical epidemiology.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/10/EBHC_Conference-150x150.jpg)
Critical appraisal of clinical trials
Slides developed by Amanda Burls for an interactive presentation covering the most important features of well controlled trials.
| 0 Comments![Caffeine story](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/caffeine-150x150.jpg)
Caffeine Soft Drinks affect Human Heart Rate. Lesson Plan
A lesson to illustrate how medical researchers study the effects of drugs on people.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/teslogo-150x150.jpg)
Investigating how to remove bacteria from hands
Investigate the best way to remove bacteria from your hands.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/teslogo-150x150.jpg)
How Science Works
Definitions of terms that students have to know for 'How Science Works' and associated coursework, ISAs, etc
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/10/Gen-R-150x150.jpg)
Generation R – The importance of medical research in children and young people
2/3, 35-min video at the launch of GenerationR, a network of young people who advise researchers.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/195_randomised_trials-150x150.jpg)
Making sense of randomized trials
A description of how clinical trials are constructed and analysed to ensure they provide fair comparisons of treatments.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/RRamakrishnan-150x150.jpg)
Randomized Control Trials
1/2, 40-min lecture on randomized trials by Dr R Ramakrishnan (Lecture 25) for the Central Coordinated Bioethics Programme in India.
| 0 Comments![CASP logo](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/casplogo-150x150.jpg)
Randomised Control Trials – CASP
This module looks at the critical appraisal of randomised trials.
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MMR: the facts in the case of Dr Andrew Wakefield
This 15-page cartoon explains the events surrounding the MMR controversy, and provides links to the relevant evidence.
| 5 Comments![James Lind Library](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/01/Lind_Featured-150x150.jpg)
Avoiding biased treatment comparisons
Biases in tests of treatments are those factors that can lead to conclusions that are systematically different from the truth.
| 0 Comments![James Lind Library](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/01/Lind_Featured-150x150.jpg)
Why treatment comparisons are essential
Formal comparisons are required to assess treatment effects and to take account of the natural course of health problems.
| 0 Comments![James Lind Library](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/01/Lind_Featured-150x150.jpg)
Why treatment uncertainties should be addressed
Ignoring uncertainties about the effects of treatments has led to avoidable suffering and deaths.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/teslogo-150x150.jpg)
‘Ask for Evidence’ lesson plan
A lesson plan and resources to give 13-16 year olds the opportunity to explore if what they see, read, and hear is true.
| 0 Comments![ECRAN logo](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2013/09/ecran.jpg)
Interactive PowerPoint Presentation about Clinical Trials
An interactive Powerpoint presentation for people thinking about participating in a clinical trial or interested in learning about them.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/04/2-0_World-without-bias-150x150.jpg)
World without bias
Overcoming biases is difficult but important. Treatment comparisons must be fair.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/04/2-0_Avoid-despair-about-biases-150x150.jpg)
Avoid despair about biases
People who choose to ignore biases may do themselves and others harm.
| 0 Comments![ECRAN logo](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2013/09/ecran.jpg)
Introduction to clinical trials: lay-friendly video
This lay-friendly video introduction to clinical trials was created by the European Communication on Research Awareness Needs Project.
| 3 Comments![Logo](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/umasslogo-150x150.jpg)
Overview of study designs
11 slides and a 4-min commentary overviewing study designs for clinical research. (from Univ Mass Med School).
| 1 Comment![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/CRUK-logo-150x150.jpg)
Science fact or fiction? Making sense of cancer stories
A Cancer Research UK blog, explaining how to assess the quality of health claims about cancer.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/teslogo-150x150.jpg)
Worksheet for planning fair tests
A TES worksheet to guide primary school children in planning a Fair Test.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/BBC-150x150.png)
Drug trials in healthy volunteers
A 6-minute video illustrating an early phase clinical trial in healthy volunteers.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/teslogo-150x150.jpg)
How are medicinal drugs tested?
A group of text files for teaching students about how medicinal drugs are tested.
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Designing a fair test
Using an everyday example to try to help students realise what fair testing involves.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/11/oxford-uni-logo-cebm-150x150.jpg)
CEBM – Study Designs
A short article explaining the relative strengths and weaknesses of different types of study design for assessing treatment effects.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/Into-to-C-Appraisal-150x150.jpg)
Introduction to Critical Appraisal
30-slide introduction by Jason Curtis, to Critical Appraisal.
| 0 Comments![screen capture of the speaker](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/RCTprotocols-150x150.jpg)
Randomized Controlled Trial Protocols
A 1-hour videoed lecture explaining protocols for Randomized Control Trials (RCTs).
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/goldacre_guardian-150x150.jpg)
Science Weekly Podcast – Ben Goldacre
A 1-hour audio interview with Ben Goldacre discussing misleading claims about research.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/CDC-150x150.jpg)
How do you know which healthcare research you can trust?
A detailed guide to study design, with learning objectives, explaining some sources of bias in health studies.
| 0 Comments![An apple](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/apple-150x150.jpg)
Smart Health Choices: making sense of health advice
The Smart Health Choices e-book explains how to make informed health decisions.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/11/Eurordis_logo-150x150.jpg)
Methodology of clinical trials
Eurordis training on the methodology of clinical trials for representatives of patients’ organisations.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2015/02/black_and_white-150x150.jpg)
How to read articles about healthcare
This article 'How to read health news behind the headlines', by Dr Alicia White, explains how to assess health claims in the media.
| 0 Comments![](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/08/teslogo-150x150.jpg)
Investigation: Designing a fair test
A teaching tool for teachers to illustrate how to carry out fair tests.
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The basic principles of Evidence Based Medicine
A webpage explaining the foundations of systematic reviews.
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Routine use of unvalidated therapy is less defensible than careful research to assess the effects of those treatments
It is more difficult to obtain consent to give a treatment in a clinical trial than to give the same treatment for patients in practice.
| 2 Comments![A doctor explaining](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2014/02/mrc_vid-150x150.jpg)
The Gold Standard: What are randomised control trials and why are they important?
A four minute video by the MRC Clinical Trials Unit about the importance of randomised control trials.
| 0 Comments![Lesson plan](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2013/11/lessonplan-150x150.jpg)
Lesson plan for teaching secondary school students about double-blind trials
This lesson plan provides resources to run stimulating activities about fair tests of treatments in a classroom setting.
| 0 Comments![A oil painting of a physician with a sick child](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2013/08/mccormack_EBM.jpg)
Viva la Evidence!
A brilliant song and video by James McCormack explaining the basics of evidence-based medicine.
| 0 Comments![A doctor, a patient and some evidence](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2013/03/decisions-150x150.jpg)
Some Studies That I Like to Quote
This short music video encourages health professionals to use evidence to help reach treatment decisions in partnership with patients.
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Doctors talk about guesswork in prescribing
In a fictional conversation between two doctors, a general practitioner makes the following point: ‘Tons of what we do is […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
A tragic epidemic of blindness in babies
‘In the period immediately after World War II, many new treatments were introduced to improve the outlook for prematurely-born babies. […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Anecdotes are anecdotes
‘Our brains seem to be hard-wired for anecdotes, and we learn most easily through compelling stories; but I am aghast […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
6 – Fair Tests of Treatments
In this Chapter: Why are fair tests of treatments needed? The beneficial effects of optimism and wishful thinking The need […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
5 – Dealing with uncertainty about the effects of treatments
In this Chapter: Introduction (this page) Dramatic treatment effects: rare and readily recognizable Laser treatment of portwine stains Imatinib for […]
| 0 Comments![](https://ru.testingtreatments.org/wp-content/themes/tti-redux-ru/images/default_tti.png)
1 – New, but is it better?
In this Chapter: Introduction (this page) Thalidomide Vioxx Avandia Mechanical heart valves Herceptin References (Section 1) Key points Testing new […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Psoriasis patients poorly served by research
‘Few trials involved comparison of different options or looked at long-term management. The duration of studies is unconvincingly brief in […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Psychiatric disorders
Regrettably, research is not always well done or relevant. Take the example of a distressing condition known as tardive dyskinesia. […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
HIV infection in children
The results of good research are also making a real difference to children infected with HIV (human immunodeficiency virus), the […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Stroke
Stroke is a leading cause of death and long-term disability. The death rate is between one in six and two […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
In an ideal world
‘In an ideal world, wherever possible, we could be gathering anonymised outcome data and comparing this against medication history, making […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Generating and investigating hunches about unanticipated adverse effects of treatments
Generating hunches about unanticipated effects of treatments Unanticipated effects of treatments, whether bad or good, are often first suspected by […]
| 2 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Comparing apparently similar groups of patients who happen to have received different treatments in the same time period
Comparing the experiences and outcomes of apparently similar groups of patients who happen to have received different treatments in the […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Comparing patients given treatments today with apparently similar patients given other treatments in the past for the same disease
Researchers sometimes compare patients given treatments today with apparently similar patients given other treatments in the past for the same […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Treatments with moderate but important effects
This section addresses the common situation in which treatments may differ only moderately from each other, but these differences may […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Treatments with dramatic effects
Sometimes patients experience responses to treatments which differ so dramatically from their own past experiences, and from the natural history […]
| 2 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Comparing like with like
In this sub-section Comparisons are key (this page) Treatments with dramatic effects Treatments with moderate but important effects Comparisons are […]
| 2 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
So what are fair tests?
Most of us know that it can be a mistake to take a media report of some new medical advance […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Addressing uncertainty is professional
‘One of the key attributes of professionalism . . . should be the ability to identify and address uncertainty in […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Facing up to uncertainties: a matter of life and death
‘Failure to face up to uncertainties about the effects of treatments can result in avoidable suffering and death on a […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Providing treatment as part of a fair test
So what should happen when there is important about the effects of new or old treatments that have not been […]
| 0 Comments![Book cover](https://ru.testingtreatments.org/wp-content/uploads/sites/10/2016/09/TT-Book-covera-150x150.jpg)
Random allocation – a simple explanation
‘Randomisation is to minimise bias and ensure that the patients in each treatment group are as similar as possible in […]
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