Users' Guides to the Medical Literature
Guyatt G, Rennie D, Meade MO, Cook DJ
Part B Therapy
Chapter 8. Confidence Intervals
Gordon Guyatt, Stephen Walter, Deborah J. Cook, Peter Wyer, Roman Jaeschke
Confidence Intervals: Introduction
Topics Discussed:
confidence interval
Excerpt:
"Hypothesis testing involves estimating the probability that
observed results would have occurred by chance if a null
hypothesis, which most commonly states that there is no
difference between a treatment condition and a control condition,
were true (see Chapter 10.1, Hypothesis Testing).
Health researchers and medical educators have increasingly recognized
the limitations of hypothesis testing; consequently, an alternative
approach, estimation, is becoming more popular. Several authors1-5—including
ourselves, in an article on which this chapter is based6—have
outlined the concepts that we will introduce here;
and you can use their discussions to supplement our presentation...."
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