Credibility

The credibility indicator offers a measure of genuine effort to perform well. A positive credibility indicator points to a deliberate effort to fake attentional difficulties, and isgenerally manifest as excessively poor performance. The algorithm to determine credibility is based on a study that used the MOXO to predict feigned ADHD (Berger et al., 2019). 

In adults a red credibility indicator indicates that the participant may be intentionally faking poor attentional performance, possibly to receive access to test accommodations or medications. In the case of a red indicator we recommend speaking with the individual and understanding the motivation behind their performance. If you assess that it is possible and relevant, we recommend retaking the test with genuine effort.

Children, who are less likely to be motivated by accommodations or medication, will receive yellow credibility indicators when their behavior performance reaches the threshold of our algorithm. A yellow indicator points to questions about  effort, motivation or understanding of the task. Children with yellow credibility indicators may for example understand the goal of the assessment and act how they feel they are supposed to, or they may have become confused by the instructions at some point and began responding incorrectly systematically. In the case of a yellow indicator we recommend talking to the individual to understand the results and retaking the test if relevant.