Psychology / Unit 1 Psych 0051 short lesson, about 20 seconds
Random Sampling
Captions available
The idea
In random sampling, every member of the population has an equal chance of being selected for the sample.
In practice
Every enrolled student's identification number goes into one pool, and 200 numbers are drawn by computer.
Where people slip
Random sampling is not casual selection. Whoever happens to walk past the researcher is not a random draw.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Something wrong in this lesson? Flag it · Sources for Psychology