During a group project, Mike learns that he’s been partnered…

During a group project, Mike learns that he’s been partnered with a student who has been diagnosed with ADHD. Mike is convinced that the other student’s ADHD means he is lazy and incapable of doing well in school. Consequently, Mike takes over the project and excludes his partner. When asked to evaluate the other student’s performance, Mike criticized his partner for not doing enough. Rather than assuming his partner’s lack of contributions was caused by his disorder, which might better explain the outcome?