school
Acemy

Selecting an Experimental Design

AP Statistics· difficulty 2/5

A placebo is

  • A

    An inert substance designed to look like the treatment

    check_circle
  • B

    An active drug

  • C

    An outlier

  • D

    A confounder

Explanation

Placebos help isolate the effect of psychological expectation.

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forwardPredict my AP score

Related questions

auto_awesomeAll Toolsquestion_answerHomework Q&Amenu_bookAP & SAT PreptimelineLearn Mode