Educational Psychology / Unit 2 EDP 0122 short lesson, about 20 seconds
Blinding and the Placebo Effect
Captions available
The idea
In a single-blind study participants do not know which condition they are in; in a double-blind study neither participants nor experimenters know.
In practice
Students told a sugar pill aids focus may report better focus: the placebo effect.
Where people slip
Blinding guards against experimenter bias, where researchers' expectations shape what they record, as well as against participants' expectations.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- Nothing yet depends on this.
Something wrong in this lesson? Flag it · Sources for Educational Psychology