The ITC Guidelines for Practitioner Use of Test Revisions, Obsolete Tests, and Test Disposal
The ITC Guidelines for Practitioner Use of Test Revisions, Obsolete Tests, and Test Disposal are now official and on the ITC website.
These guidelines address issues associated with when to adopt revisions to or new versions of tests. Revisions can range from a norm update to a complete new version of the contents and the scales. These guidelines also address issues associated with the disposal of obsolete test materials.
These guidelines emphasize the importance of using sound professional judgment when deciding, on a case by case basis, the appropriateness of using either a new or revised version of a test or continuing to use the older version. This judgment involves balancing considerations relating to improvements offered by the newer version against the need for continuity of assessment afforded by use of the older one. Psychometric considerations, although important, are not the only considerations. Guidelines are provided that address practical, applied, professional, and psychometric issues to help inform professional judgment.