Experiments

  • Lyrics © Mary McLellan
    may sing to the tune of Meghan Trainor's "All About That Bass"

    You know you randomly select, select, no effect
    You know you randomly select, select, no effect
    You know you randomly select, select, no effect
    When your sample’s like the population you can generalize

    You know you randomly select, select, no effect
    You know you randomly select, select, no effect
    You know you randomly select, select, no effect
    When your sample’s like the population you can generalize

    When you make an experiment you must randomly assign
    To make the groups the same so your treatment is the why
    When you make an experiment you must randomly assign
    To make the groups the same so your treatment is the why

  • Lyrics © Mary McLellan
    may sing to the tune of The Bee Gee's "Stayin' Alive"

    Well you can tell by the way I design my experiment
    I use my mind
    Treatment A and Treatment B of the experiment is what you’ll see
    Because subjects-- they go in my big bag I shake them well
    Subjects-- they go in my big bag I shake them well

    When you need to spread unknown traits evenly - Randomize, RANDOMIZE
    When you need to spread unknown traits evenly - Randomize, RANDOMIZE
    RANDOMIZE to REDUCE BIAS, REDUCE BIAS
    RANDOMIZE to REDUCE BIAS

  • Lyrics © Mary McLellan
    may sing to the tune of "Spongebob Squarepants Theme Song"
     

    Make an experiment what do you do?
    Control, randomize, repeat

    Make an experiment what do you do?
    Control, randomize, repeat

    Make an experiment what do you do?
    Control, randomize, repeat

     

    Make an experiment what do you do?
    Control, randomize, repeat

     

    Randomly assign to the treatment groups
    So you can claim the cause and effect

  • Lyrics © Mary McLellan 
    may sing to the tune of The Beach Boys "Good Vibrations" 

    I see you have a trait there
    That may affect the way subjects respond
    I see you have a trait there
    That may affect the way subjects respond
    What do you do
    Make homogeneous groups
    What do you do
    Make homogeneous groups

    Blocking reduces variation
    Blocking reduces variations
    Within each block is experimentation
    Within each block is experimentation

  • Music and lyrics ©2017 by Greg Crowther

    Chorus:

    The null hypothesis … is a dull hypothesis! 
    The null hypothesis … is a dull hypothesis!

    Maybe zero is the difference in group means.
    Maybe zero is the slope of the line.
    Or maybe sample values are just what you expect
    If the fairness of the coin is just fine!

    (Repeat Chorus)

    If the means of groups are equally high…
    If the X cannot help forecast the Y…
    If the P-value exceeds point-oh-five…
    Then the null hypothesis can’t be denied!

    (Repeat Chorus)

  • Shapesplosion is an on-line game in which a person is expected to place specifically shaped pegs into the appropriate holes within a short time period. In this project, students are asked to use the Shapesplosion game to design an experiment and collect data. This game is specifically designed so that students have the opportunity to develop and test their own unique research question. You can leave all the variables blank when you are simply trying out the game, however, if you want to find your score is the database of results, you will need to select the Participant Info box.

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