advanced data analysis

Map Branches

• reliability
  • interjudge
    • Blund and Altmen (BMJ)
      • GC to supply
    • correlation
      • no use
    • crucial:
      • extent of difference between judges scores case by case
        • take difference between yr measures
          • plot vs other measures
• qualitative data
  • any poss. confounding variables?
• normal distribution
  • implications for statistics used
• psychometrics
  • questions
    • age+gender norms?
      • SD
    • age norms
      • standard devaiation
    • Are any indepedent SMs correlated?
• questions
  • sensitivity vs specificity
  • ++ extreme score in SDs?
    • case by case
      • Overlap with clinical MND population?
      • predicted by qualitative variables?
      • Deviation in other indexes?
        • apparently not consistently

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