Experimental Design Ttb


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Experimental Design Ttb

  1. 1. Experimental Design Tiny Transfer Book Directions
  2. 2. Experimental Design Tiny Transfer Book Terri Johnson 9/15/09 Front Cover 1. Add a border 2. Title your book 3. Your Name 4. Date
  3. 3. Page 1 Testable Question Definition: Question you are trying to answer in an experiment. Good Formats: What is the effect of the IV on the DV? How does changing the IV affect the DV? Can also say increasing/decreasing... Notice theborders...
  4. 4. Page 2 Hypothesis Definition: A prediction of how changing the IndependentVariable will affect the Dependent Variable. Good Format: If the IV is increased/decreased, then the DV will increase/ decrease/stay the same because... ___________ Don’t write “IV” or “DV”, you actually write out what the variables are you are testing..
  5. 5. Page 3 IndependentVariable The Input. What you change or manipulate in an experiment. These are how you change or manipulate the IV Examples IV: Levels of IV Brands ofTissue: Kleenex, Puffs,Always Save Height of hill: 1m, 2m, 3m, 4m Number ofWashers: 2, 4, 6, 8 Type of Liquid: water, vinegar, rubbing alcohol, milk Levels of the IV
  6. 6. Page 4 DependentVariable The Output in an experiment. It happens as a result of what you changed as the IV. What you measure. Will generally have a unit of measurement. (as in grams, meters, m/s, liters...)
  7. 7. Page 5 Constants Constants are all the things (variables) that you do NOT change in an experiment. Constants, you keep the same during each test. The control is used to compare and see if changing the IV actually matters. Generally the least changed level of the IndependentVariable. Control
  8. 8. Page 6 IV (unit) DV (unit) 1 2 3 Mean Title:The Effect of IndependentVariable on DependentVariable Measure of Central Tendency: usually the mean in middle school science. Levels of IV go here Example Defn: Chart used to Organize information. Data Table
  9. 9. Page 7 • Claim What relationships you discovered when doing an experiment. •Evidence List evidence in sentence form that supports your claim. •Reasoning The scientific reason why your claim happened. Conclusion
  10. 10. Screencast.com • September 09, Bandwidth is about maxed out. Starting in October, can see this presi as a screencast in 2 parts... • Part 1 • Part 2
  11. 11. • Image: 'Going off the Depend' by jackace at www.flickr.com/photos/ 91568486@N00/454478654 • Image: 'Clinic (bet it's Singapore Sling).' by gak at www.flickr.com/ photos/18095953@N00/504038251