Testing , the Role of Chance , Common Statistical Tests
نویسنده
چکیده
1) Be able to perform the key steps to hypothesis testing 2) Understand the concept and use of the alpha value 3) Understand in general terms how the p value is derived 4) Correctly interpret the p value 5) Distinguish between type I and type II error 6) Understand the relationships among sample size, power, type I and type II error 7) Have a general notion of the concept of power as it relates to study conclusions 8) Know how a two-sample t-test is applied 9) Know how to interpret the results of a two-sample t-test 10) Know when it is appropriate to use a chi-square test 11) Know how to interpret the results of a chi-square test 12) Define the following terms: hypothesis testing, null hypothesis, alternate hypothesis, type I error, type II error, p-value, power, chi square test, t-test
منابع مشابه
Primer on type I and type II errors.
Effective Clinical Practice January/February 1999 Volume 2 Number 1 45 Statistical tests are tools that help us assess the role of chance as an explanation of patterns observed in data.* The most common “pattern” of interest is how two groups compare in terms of a single outcome. After a statistical test is performed, investigators (and readers) can arrive at one of two conclusions: 1) The patt...
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