Changeset 9329 for branches/HeuristicLab.Analysis.AlgorithmBehavior/HeuristicLab.Analysis.AlgorithmBehavior.Analyzers.Views/3.3/StatisticalTestingView.resx

Timestamp:

03/21/13 13:26:16 (12 years ago)

Author:

ascheibe

Message:

#1886 calculate Cohen's D and Hedges' G for pairwise comparison and updated documentation

File:

• branches/HeuristicLab.Analysis.AlgorithmBehavior/HeuristicLab.Analysis.AlgorithmBehavior.Analyzers.Views/3.3/StatisticalTestingView.resx (modified) (2 diffs)

branches/HeuristicLab.Analysis.AlgorithmBehavior/HeuristicLab.Analysis.AlgorithmBehavior.Analyzers.Views/3.3/StatisticalTestingView.resx

@@ -166 +166 @@
         lR7X/aj3Y+uI5ciZUdfRvidBTx6Mscae/5T+04fx/Kfkp+UTqhONk2aTp6fcp24+W/1s/Hnq8/npgp+l
         f65+ofviu18cf+mbWTUz/pL/cuHX4lfyr468Xva6e9Z/9vGb5Dfzc4Vv5d8efcd41/s+7P3EfOYH7IeK
-        j3ofuz55f3q4kLyw8Bv3hPP74uYdwgAAAAlwSFlzAAALDwAACw8BkvkDpQAAABl0RVh0U29mdHdhcmUA
+        j3ofuz55f3q4kLyw8Bv3hPP74uYdwgAAAAlwSFlzAAALDgAACw4BQL7hQQAAABl0RVh0U29mdHdhcmUA
         UGFpbnQuTkVUIHYzLjUuODc7gF0AAAK0SURBVDhPrZBrSNNRAMWNvkVEEBT0oY+BUAgSRBhIQmUqKYb4
         KgudU1MTlj2WZUlMykdu+VhatmWKWaaITF35qCmzWoaGj81kms72dm5/3cM9TtvdX9Sob/0+XC6Hcw73
@@ -194 +194 @@
 
 For pairwise comparision of the groups the Mann-Whitney U test is used. 
-It also requires sample sizes of at least 5 samples.</value>
+It also requires sample sizes of at least 5 samples.
+
+The p-values calculated by the statistical tests are interpreted as follows:
+The null hypothesis states that the groups which are compared have the same distribution.
+A p-value &lt; 0.05 (this value is often chosen as significance level)  means the null hypothesis is rejected, 
+which therefore means that the distributions are not equal. 
+
+For the pariwise statistical test, in addition to the p-value, Cohen's d and Hedges' g are calculated.
+According to Wikipedia, these values can be interpreted as follows: "A lower Cohen's d indicates a necessity of larger sample sizes, and vice versa."</value>
   </data>
 </root>