Item Set

In situations where you have a large item bank and want to show only a set of items to participants within each test session, you can use the Item Set parameter.

if using the flat item table method, you need to add a column to your item bank (as in the example below). This column will contain an id for the itemset to which a given item belongs.

Next you should map the column you added to Item Set when setting the flat table.

There are two approaches for setting up the item set in a Concerto test:

1. The item set can be specified in the assessment node. Please see the example below, where item set 4 is specified for the test.

2. A more dynamic approach is to specify an item set in the URL. To enable this, an input parameter is required for the test. In the example below, an input parameter named Set that is embedded in the URL is added to the test.

When setting up the assessment node, itemSet should be added as an exposed input (see example below).

The value of the exposed node input itemSet can then be determined by the test input parameter Set. This can be set up by connecting these two icons (see example below).

Now an item set can be selected for a testing session by specifying the Set parameter in the URL, e.g., https://xyz.yourdomain.com/test/URLURLURL**?Set=4**.