Between vs. within
Which of these experiments describes a within-participant experiment?
Answer the question
You randomly sample a group of people where a button color is blue. One month later you sample a new group where the button color is green.
You have a group of email users and for two weeks randomly show one of two "Inbox" designs whenever a person logs in.
You run one condition of homepage images simultaneously. One is tested on people with IP addresses in the United States and one with IP addresses in Italy.
You use a new design that speeds up loading times. Every visitor who shows up on the website either gets the old version or the new, faster version. You don't track who your visitors are.
Take Hint (-15xp)