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Cognitive Science Methods

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Submitted By kamcbean
Words 784
Pages 4
Kimberly Ann McBean
PSY 314
Professor Sailor
Spring 2015

Methods
Participants
XXX participants participated in a memory experiment to receive classroom credit. These participants were recruited from 3 upper level psychology classes, XXX from cognitive psychology class and XXX from 2 experimental psychology classes at a public university, 66% of the samples were majority female.
Materials
In this experiment a 2 (number of presentations= once or twice words shown) x 2 (word frequency= low or high) design was used. The participants were presented with a list of 36 words on an overhead projector (see Appendix for a complete list of words used in this experiment) all the words were white, same size letters, same font as well. All words presented had a black background; the concreteness and word length was the same. The list consists of 18 high frequency words and 18 low frequency words. Participants were also given a sheet of paper numbered 1-36. Participants were instructed to study and to write down an estimate (on the numbered paper given) of the chance of how well they would do at recalling each word on a later test (i.e. if you thought you had 80% chance of recalling a word, you would write down 80). After participants were presented with the words once, they were instructed that there would be an additional chance for them to study some of the words (without making recall estimates). While participants were instructed to write down estimate times, they were also told whether a word would be presented once or twice. After participants were done studying the list of words, they were then asked to write down as many words as they could recall.
Procedure
First participants were told to look in front of the classroom at the overhead projection as the instructor was about to present the list of 36 words. The instructor then began to run a practice trial. The participants were presented with the word “CHAPEL” for 5 seconds, under the word chapel is where the participants would see if that particular word would be presented once or twice on the overhead projector. The instructor made sure each participant understood how the experiment was going to be run. The instructor then started the presentation of the 36 words. The words were displayed at random for 5 seconds each for all 36 trials. On trial #1 the word presented was “LEGISLATE” the number of opportunity to see that word again was (1). Trial #2 the word presented was “HISTORY” the number of opportunity to see that word again is (2), trail #3 “MORNING”, the opportunity seen (1), trail #4 “TRAVESTY”, the opportunity seen (2), trial #5 “ CHARADE”, the opportunity seen (2) trial #6 “COURIER”, the opportunity seen (2) trial #7 “VOUCHER”, the opportunity seen (1), trial #8 “DISTANCE”, the opportunity seen (2), trial #9 “FLANNEL", the opportunity seen(2), trial #10 "ARTICLE", opportunity seen (1), trial #11 "ORIGINAL", opportunity seen (2), trial #12 "CAREFULR", opportunity seen (2), trial #13 "MISTAKE”, opportunity seen (1), trial #14 "NAVIGATOR", opportunity seen (2), trial #15 "LITERARY", opportunity seen (1), trial #16 "FIASCO", opportunity seen (1), trial #17 "WARDROBE" opportunity seen (1), trial #18 "PEOPLE", opportunity seen (2), trial #19 "WINDOW" opportunity seen (1), trial #20 "JAMBOREE", opportunity seen (2), trial #21 "TROUBLE", opportunity seen (1), trial #22 "PHYSICAL", opportunity seen (1), trial #23 "TONIGHT", opportunity seen (1), trial #24 "FRIEND", opportunity seen (2), trial #25 "SCORPION", opportunity seen (1), trial #26 "MEDICINE", opportunity seen (1), trial #27 "BIRTHDAY", opportunity seen (2), trial #28 "MUSTANG", opportunity seen (2), trial #29 "FESTIVAL", opportunity seen (2), trial #30 "SERIOUS", opportunity seen (1), trial #31 "QUESTION", opportunity to be seen (2), trial #32 "SEEP", opportunity seen (1), trial #33 "OBSCENITY", opportunity seen (1), trial #34 "INTESTINE", opportunity seen (2), trial #35 "NUMBER", opportunity seen (2) lastly trail #36 "EPIDEMIC", opportunity seen (1). After the presentation of all 36 words, 18 words were then presented again (in random order) and seen for 5 seconds, with that being a total of 54 trials. Next participants were given a total of 2 minutes to write down, on the piece of paper numbered 1-36, as many words as they could recall. When the 2 minutes were up the participants were then shown the list of 36 words and a separate list of which words were high and low frequency words from the list and also how many times these words were presented (once or twice). The participants were then asked to tally up how many HFW they recalled if seen once and/or twice and how many LFW they recalled if seen once and/or twice. This experiment was conducted in a group setting.

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