o Two Groups : A) Fruit Group B) Profession Group
o Four Trials.
After each trial, ask participants to immediately write down the stimuli.
o Fruit Group presented with the names of 4 fruits on each trial.
o Profession Group presented with the names of 4 professions on trials 1, 2, & 3.
On trial 4, Profession Group presented with the names of four fruits.
o Both Fruit Group and Profession Group performed strongly on trial 1.
o Fruit Group performance dropped after the 1st trial, and remained down for remaining trials.
o Profession Group performance dropped after the 1st trial.
On the 4th trial (when presented with the names of fruits) Profession Group's performance increased.
o Fruit Group had a strong performance and then dropped because of Proactive Interference.
o Proactive Interference: when information learned previously interacts with learning new information.
o Profession Group had a similar performance until, on the fourth trial when presented with the names of fruits, they were released from proactive interference.
o Participants were semantically coding information. Because:
(1) Profession Group was released from proactive interference when a set of words from a new group was presented, and
(2) because placing words into categories involves the meaning of the words