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The British Columbia Postconcussion Symptom Inventory , is a 16 item self-report inventory designed to measure both the frequency, and intensity of the ICD-10 criteria for Post concussion syndrome, which is a common occurrence in cases of mild traumatic brain injury. The asks the respondent to rate the severity of 13 symptoms rated on a six-point Likert-type rating scale that measures the frequency and intensity of each symptom in the past two weeks.
The two ratings are multiplied to create a single score for each item. These product-based scores are then converted to item scores that reflect both the frequency and intensity of symptom endorsement. Item product scores convert to item total scores: 0–1 = 0, 2–3 = 1, 4–6 = 2, 8–12 = 3, and 15+ = 4.
Item scores of 3> reflect moderate to severe symptom endorsement, Item scores from 1 - 2 reflect mild endorsement of the symptom
BC-PSI items