score = (x) -> 
  if x == "Yes"
    10
  else
    0
    
engagements = [stakeholder_issue_disclosure, stakeholder_identification, stakeholder_process_disclosure, stakeholder_outcomes, stakeholder_coverage]
engagements.reduce((weighted_sum, engagement) -> 
                         weighted_sum + 0.2 * score(engagement)
                   , 0)