Test Items

The test items contain the parameters of individual items or cases in a test. An item contains usually the names of the samples played in this item. For example, parameter 'A' contains the sample ID 'ping3_64kbs' and parameter 'B' contains the sample ID 'ping4_64kbs'. Test items are also used to store the answers given by a subject for this item. For each subject a copy of the item is created and the answers and other information is added. See result file format for details.

The previous versions of GP (pre 2.03) there were different test item classes that were used for different tests. They all have now been replaced with a single generic item class. Also defining, extending and configuring test items have been made easier and more powerful. For most part the test items file format is the same as before, except that the class parameter (which told the test item class to use) should be omitted.

However, the old files should still work for some time but it is recommeded that the files are converted to new format for better compatibility to future versions.

Test items file format

The test items file contains a list of test items. The parameter names are prepended with the item ID. Here is an example of a test items file from an A/B test:

   # Item 'item1'
   # which sample is the A sample
   item1.A=pirr44
   # which sample is the B sample
   item1.B=pirr32

   # Item 'item2'
   # which sample is the A sample
   item2.A=pirr16
   # which sample is the B sample
   item2.B=pirr12

The file contains two test items whose item IDs are 'item1' and 'item2'. Each have two parameters A and B.

See each test type's documentation for the needed item parameters for that test.

Moving to newer format from older files

Converting to new format is very easy, just remove or comment out all the item class name definitions ('itemXXX.class=classname') from the old file.

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Last modified: Wed Jan 20 11:06:36 EET 1999