Show the subject the list of non-words (List B). He or she has two minutes to study the list.
When two minutes have elapsed, take the list of non-words away from the subject and wait for 20 seconds.
The subject then has one minute to recall and write down non-words from the list.
Finally, count the number of correct non-words the subject recalled.
Repeat the same sequence for words (List A).
Think about the experiment design you described in Problem C1. Does the process you just went through (studying non-words, then writing non-words; studying words, then writing words) present any additional biases? How might you resolve any biases in your experiment design?
If you gave someone the same task twice, would you expect them to perform better, worse, or equally well the second time? If you did not answer "equally well," then that presents a source of bias for this experiment. Close Tip