It is critical that the mathematical integrity of an assessment model is maintained and this can be difficult when one or more assessors have the skills, time or inclination to complete only a partial assessment. This article describes various methods that can be used to ensure the integrity of the model is maintained when assessors carry out incomplete assessments.
The Problem Statement
Let’s look at an example. The BUSDOX Technical Assessment Model caters for 1,000 individual selection criteria broken down into 10 Groups with each Group containing 10 Sub-groups and each Sub-group containing 10 Items. Of course, in most situations less than the full complement of 10 Groups will be used as will be the case for Sub-groups and Items. The following figure makes this clear.