Difference between revisions of "Hypothesis tests"
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| − | '''This page is intended as an introduction to some commonly used hypothesis tests. Before using any of these, it is important that the concepts behind hypothesis testing are understood. These concepts are explained on [[Hypothesis testing|this page]].'''<br> | + | '''This page is intended as an introduction to some commonly used basic hypothesis tests. Before using any of these, it is important that the concepts behind hypothesis testing are understood. These concepts are explained on [[Hypothesis testing|this page]].'''<br> |
| − | Hypothesis tests are very commonly used in epidemiological investigations, and a wide number of tests are available. These can be classified into groups according to the [[Data types|data types]] in question, | + | Hypothesis tests are very commonly used in epidemiological investigations, and a wide number of tests are available. These can be classified into groups according to the [[Data types|data types]] in question, according to whether a specific underlying distribution is assumed when performing the test (in which case, the test is known as a '''parametric test'''), and according to whether or not the data are matched or independent (i.e. whether comparisons are being made at the individual level or the group level).<br> |
==Comparing a categorical outcome between different groups== | ==Comparing a categorical outcome between different groups== | ||
| + | ===Independent samples=== | ||
| + | |||
| + | ===Matched designs=== | ||
==Comparing a quantitative outcome between different groups== | ==Comparing a quantitative outcome between different groups== | ||
| − | |||
| − | ===More than two groups | + | ===Independent samples=== |
| + | ====Two groups==== | ||
| + | |||
| + | ====More than two groups==== | ||
| + | |||
| + | ===Matched designs=== | ||
| + | ====Two groups==== | ||
| + | |||
| + | ==Comparing two quantitative outcomes (matched designs)== | ||
[[Category:Veterinary Epidemiology - Statistical Methods|F]] | [[Category:Veterinary Epidemiology - Statistical Methods|F]] | ||
Revision as of 13:48, 5 May 2011
This page is intended as an introduction to some commonly used basic hypothesis tests. Before using any of these, it is important that the concepts behind hypothesis testing are understood. These concepts are explained on this page.
Hypothesis tests are very commonly used in epidemiological investigations, and a wide number of tests are available. These can be classified into groups according to the data types in question, according to whether a specific underlying distribution is assumed when performing the test (in which case, the test is known as a parametric test), and according to whether or not the data are matched or independent (i.e. whether comparisons are being made at the individual level or the group level).