Evaluate method

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Across
  1. 1. What is the 'big picture' you evaluate?
  2. 4. You compare this between data
  3. 8. Points which don't fit the pattern
  4. 9. What you gain at the end of an experiment
  5. 12. ................ data gathered from practical
Down
  1. 2. How much you believe in the data
  2. 3. What you follow to carry out a practical
  3. 5. What do you think needs improving?
  4. 6. Various negative issues which need solving
  5. 7. Points which are placed without reason for
  6. 10. Tells you how precise data is
  7. 11. Largest minus smallest value