The British Columbia Cognitive Complaints Inventory (BC-CCI)

  • The British Columbia Cognitive Complaints Inventory (BC-CCI) is a rapid screening tool that assesses perceived cognitive difficulties specifically in patients with Major Depressive Disorder (MDD) and related mood disorders.
  • The scale consists of 6 items assessing perceived problems with concentration, memory, expressing thoughts, word finding, slow thinking, and difficulty solving problems in the past 7 days.  It is self-rated by patients and takes less than 5 minutes to complete.  Scores on each item (ranging from 0, not at all, to 3, very much) are summed to yield a total score ranging from 0 – 18; scores of 0 – 4 are broadly normal.
  • The BC-CCI was validated in a sample of 62 inpatients and outpatients meeting DSM-IV criteria for MDD and 112 healthy controls (Iverson & Lam, 2013), demonstrating good reliability and discriminant validity.
  • How can the BC-CCI be used to guide clinical management of patients with depression? The BC-CCI is not a diagnostic tool and should therefore be used in conjunction with a symptom rating scale such as the PHQ-9 or the QIDS-SR. However, the BC-CCI total score can provide a quick measure of perceived cognitive difficulties that can be used to monitor changes in these symptoms over time. Using a validated tool such as the BC-CCI can also save time during clinical assessment and ensure these symptoms are assessed in a standardized way.
  • Although perceived cognitive difficulties should lessen with successful treatment of depression, some evidence suggests that individuals with MDD continue to experience cognitive difficulties despite the remission of other depressive symptoms.  In these cases, it may be especially important to monitor perceived cognitive difficulties over time.

Download the BC-CCI

  • The BC-CCI is freely available for individual clinical use.  For other uses, including research, please contact Dr. Grant Iverson, at
  • BC-CCI scale

BC-CCI Citations: