One hundred and forty-six students agreed to take part in the experiment and 85 decided to take revenge (see above). Thirteen cases (15%)
had to be omitted from further analyses because they either doubted
the existence of the other participants or correctly guessed that this
study was designed to investigate vengeful responses. The final sample
consisted of 72 participants (75% female). Ages ranged from 18 to
30 years (Mage = 21.26 years, SDage = 2.91).