crossword puzzle

12345678910111213141516171819
Across
  1. 3. ensuring only the IV changes
  2. 7. this type of design provides evidence for development change
  3. 9. these types of variables are characteristics that individuals bring with them
  4. 11. this type of IV manipulation happens when a series of planned events occur during the experiment
  5. 14. natural changes to participants short-term states or long-term development
  6. 15. participants leaving the study
  7. 17. this happens if the task is so hard that everyone performs poorly (2 words)
  8. 18. systematic ______
Down
  1. 1. production of public knowledge
  2. 2. the r-squared value is indicative of the strength of a ____
  3. 4. theories and hypotheses must be _____
  4. 5. common assumptions (2 words)
  5. 6. a practice that claims to use the scientific method but does not actually adhere to it
  6. 8. these types of questions are biased
  7. 10. the consistency or stability of a measure of behaviour
  8. 12. ______ skepticism
  9. 13. sources of variability in your measure caused by things other than your conceptual IV
  10. 16. a ______ difference between IVs can cause big changes in the DV
  11. 19. the least complex theory is most desirable