Lesson #5: Random Ordering (Assignment) of 25 Items on a Test
In some cases, researchers need to randomly order the presentation of experimental stimuli or dependent measures. For example, you may wish to randomly order the items in a 25-item test, or you may want to develop three different test forms, each with unique random orderings (e.g., to control for order effects or to discourage cheating).
Research Randomizer makes this task easy. For instance, to create three different test item orderings, just begin by numbering each of the 25 items (Item #1, Item #2, Item #3, and so on), and then set the Randomizer form to generate 3 sets (representing the different versions of the test) of 25 unique, unsorted numbers (representing the number of items on the test) with a range from 1 to 25 (representing the item numbers).
Random Sample of 50 Subjects from a Population of 643
Random Assignment of 40 Subjects to 4 Conditions
Random Assignment of 40 Subjects in Blocks of 4
Random Sample of 100 Telephone Numbers
Random Ordering (Assignment) of 25 Items on a Test
