Saturday, September 11, 2010

fair tests

Kids learn all about fair tests in school science. For a test to be valid, you have to keep all variables the same except the one that you are testing. If you were testing kids' numeracy or literacy, care should be taken to ensure that:

  • the children compared are the same age
  • the children have been at school for the same number of years
  • the particular test does not favour one curriculum over another

Grrrr! At least it is not science that these guys are testing.


  1. Also, when graphing comparative results, it's good practice to not suppress the zero on the axis, unless you really want to tell NT school students that they should just give up now.

  2. Good points, maybe that's why this scientist withdrew my year 7 child this year.