ReviewStats

attempts
Type: integer
required

Number of questions answered so far
correctFast
Type: integer
required

Number of correct answers within the fluency threshold (3 seconds)
correctSlow
Type: integer
required

Number of correct answers slower than the fluency threshold
incorrect
Type: integer
required

Number of incorrect answers
skipped
Type: integer
required

Number of skipped questions
totalFacts
Type: integer
required

Total number of facts in the review session
outcomes
Type:

Per-source-fact review outcomes; advanced/retained/needs-practice counts are derived from this

Properties: 3
passed
Type: boolean

Whether every source fact advanced (only set when sessionStatus is SessionCompleted)
reward
Type:
Properties: 2