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  • by Lawrence Mark Lesser

    He asks, “How can you mix social justice with teaching statistics?”
    I’m thinking: how can you not?
    How better to illuminate
    deviation from expected values?

    He says, “But it’s not neutral.”
    Like it’s natural and neutral to teach from books
    based on baseball, playing cards, and flatscreen TVs
    rather than view by neighborhood things like

    incidence of asthma or
    incidents of racial profiling.
    We’ve been testing
    a null that dulls 

    by what’s normalized
    as if the type 
    1 error
    is always worse.

    When he says social justice is beyond our scope,
    I want to ask: do you mean
    our discipline or
    our humanity?


  • Jan: I predict conventional p-value usage will decrease.
    Lainie: You sound like a psychic.
    Jan: How so?
    Lainie: The "p" should be silent!

    Larry Lesser

  • Lyrics & Music © 2014 Greg Crowther

    If every gal I’ve met is a hypothesis
    Who might turn out to be the mate I’ve sought,
    And if I were to yield
    To the conventions of my field,
    Then you would be referred to as H-naught...

    You’re my null, after all; you’re a theory in the making,
    So robust to every test -- my hypothesis of choice.
    You account for the past; you’re a vision of the future;
    And when I feel confused, you’re my signal through the noise.

    My life has been an uncontrolled experiment --
    A source of all too many scattered plots.
    But you provide a line
    With an R-squared of point-nine;
    Yes, you and you alone connect my dots...


    One can never prove a null
    In a finite length of time;
    Each finding simply strengthens it or not.
    But if I see trends emerge --
    And let’s just say I do --
    I’d be crazy not to publish what I’ve got...

    CHORUS [twice]

  • Lyrics © 2018 Lawrence M. Lesser and Dennis K. Pearl
    may sing to the tune of Kool and the Gang's "Celebration!"

    This is our simulation

    Sim-u-late new groups, again!
    (let's simulate)
    (then) rep-li-cate the test, again!
    (let's rep-li-cate)

    We're comparing group means right here,
    A distribution of samples makes it clear.
    So find the frac-tion of values further out:
    That's going to the p-value, no doubt!

    Come on now, sim-u-la-tion
    Let’s all simulate how groups are assigned
    We will investigate how null does align

    Do groups differ from each other?
    It's up to you, and what you measure
    It is time to simulate, again!

    It’s a simulation

    Sim-u-late new groups, again!
    (it’s a simulation)
    (then) rep-li-cate the test, again!
    (let's rep-li-cate)

  • Since a flight simulator uses simulations for learning decision-making in flying, how about using one to teach simulation-based inference?  That could make a great pilot program!

    Larry Lesser