Environment topics 1,2 & 3

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Across
  1. 2. US state where Czeisler's study took place
  2. 4. Number of seconds the confederate sat at the green light for in K&M's study
  3. 11. Our bodily functions fluctuate according to this daily cycle
  4. 12. One of the factors in Yale model of persuasion
  5. 14. City where Black & Black carried out their study
  6. 16. Method Black & Black used to collect data
  7. 19. Mineral made in Czeisler factory
  8. 20. Siffre slept in one of these
  9. 21. Place where Cialdini's study took place
  10. 22. What is the C in Rational Emotive Therapy
  11. 23. One of Glass and Singer's IV's
Down
  1. 1. Shift pattern where shifts move backwards
  2. 3. Hormone that Lundberg measured
  3. 5. When people observe and imitate a role model
  4. 6. A message source in Lord's study
  5. 7. Number of days in the longer cycle that Czeisler moved some workers onto
  6. 8. People who get up early
  7. 9. Country where Preckel's study took place
  8. 10. US state where Kenrick & McFarlane carried out their study
  9. 13. Unit for measuring noise
  10. 15. Hormone that helps us sleep
  11. 17. What was being recycled in Luyben and Bailey's study
  12. 18. Medical term for high blood pressure