A brief summary of current research.
Krol, AL, Mrazik, M, Naidu, D, Brooks, BL & Iverson, GL. Brain Injury, 25(13-14), pp 1300-1305.
Researchers studied whether the way a concussion scale was administered made a difference in the number of reported symptoms. They found that concussed athletes self-reported more symptoms using a questionnaire following injury than when being asked or interviewed about symptoms. Being interviewed by a female, however, did result in more reported symptoms. Researchers conclude that using a questionnaire may result in more consistent results; however, clinicians should be aware the number of symptoms may be greater than in an interview setting.