• Q. Why is the flu vaccine like a good experiment?

    A. Both are designed to control variants (variance).

    Larry Lesser & Dennis Pearl

  • by Larry Lesser

    The ends of lines
    Are grouped by rhymes;

    Within each pair,
    Two treatments shared.

    If something lurks,
    This plan still works,

    But it takes time
    To match the lines

    And if one leaves….

  • Q: Why do students find Experimental Design homework frustrating?
    A: They're given random assignments!

    Larry Lesser

  • Q: Why is an experiment like a virus?

    A: Both have more impact with replication,
    and both need to be controlled.

    Larry Lesser and Dennis Pearl

  • An instructor trying to decide how to offer a course
    borrowed a strategy from randomized experiments:
    heads for face-to-face mode, tails for online.

    Now she has a flipped classroom.

    Larry Lesser

  • My roommate and I argued about what to do,
    so we used an unbiased strategy from randomized experiments:
    heads we play Monopoly, tails we play poker.

    The coin toss was a game changer.​

    Dennis Pearl