Scientific method.
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<BR><LI> One or more hypotheses are proposed to explain observations.
<BR><LI> A hypothesis should be testable and lead to predictions.
<BR><LI> A prediction should be falsifiable through tests.
<BR><LI> A  test  may take the form of further observations or a controlled
experiment. where the effect of one variable is checked by testing
control and experimental groups that differ in only one variable.
<BR><LI> The test results should either support or reject the hypothesis.
<li> If  supported,  the hypothesis gains theoretical value and is
further tested.
+ If rejected, the hypothesis is either revised or discarded.
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   A  hypothesis  that  has  sufficient  support  via  many  tests may be
   accepted as a theory.
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   <A ClAsS=MID Href="../../../../med/Vid/Discover2e/ch01a02_ScientificMethod.dcr" oNClick="popurlt('../../../../med/Vid/Discover2e/ch01a02_ScientificMethod.dcr');txtcolor('Scientific2','gray');return false;" Id=Scientific2 ClAsS=MID>Scientific method exercise</A>
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