priming homographs for a vocabulary test · but less stable homographs (flexible) were selected....
TRANSCRIPT
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Acknowledgments
• Rawya Al-Jabari
• Pam Cobble
• Brittany Pendleton
• Keisha Reed
• Jules Sims
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Continuous
Word Association
• bank_savings_bank_money_bank_river_
bank_basketball__
• bank_check___bank__teller__bank_loan
_bank__money__
• Classified as Stable or Unstable.
• Financial meaning is dominant.
• (Gorfein, Viviani, & Leddo, 1982)
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Design 1: Priming Task
• 14 Heterophones (non-homophonic homographs), 14 homophonic Homographs “matched” in stability and balance (Match), 14 homophonic Homographs “matched” in balance but less stable homographs (Flexible) were selected.
• Stability: likelihood of changing meanings in 4 continuous word associations.
• Balance: Degree of dominance of the meaning defined.
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Materials Used
Hetero-
phones
Matched Flexible
Dominance .74
.93 .89
Stability .79 .83 .67
Baseline
Vocabulary
Test
.30 .34 .30
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Procedure
• Participants were selected on the basis of being native English speakers.
• Participants were assigned in a counterbalanced manner to the experimental conditions,(dominance).
• In phase 1, they were instructed to decide whether sentences presented in random order from the list assigned made sense and had to make their decisions within 4s.
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Design (2)
• Each set of 14 homographs were divided
at random into two subsets of 7 items
each.
• Sentences were constructed for the
dominant and secondary meaning of each
homograph.
• Twenty-one nonsense filler sentences
were created.
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Design (3)
• Two sentence lists were created that
contained the subsets of dominant
homographs and the filler items.
• Two sentence lists were created with the
secondary sentences and the filler items.
• Participants decided whether the sentence
made sense.
• Accuracy feedback was provided.
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Sentence Types
• Dominant: The wound was minor.
• Or
• Secondary: He wound up the line.
• And
• Nonsense: They took their vaccination in
Hawaii.
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Proportion Correct Sentences
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Nonsense Het Match Flex
Materials
Pro
po
rtio
n C
orr
ec
t
Dominant
Secondary
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Median Decision Time
0
500
1000
1500
2000
2500
Nonsense Het Match Flex
Materials
De
cis
ion
Tim
e m
se
c
Dominant
Secondary
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Procedure (2)
• Upon completion of the sentence task participants were given the vocabulary test booklet which had instructions for a “TOT” task and had 20 minutes to complete as many of the items they could.
• Participants were encouraged to do one item at a time and at the end of the list go back to any item they may have thought of later.
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Design: Vocabulary Test
• Cues were written for the secondary meaning
of each of the 42 critical homographs and
randomized into two test booklets.
• e.g. Not eat for a holy day
or for a different word
Twist the key on a toy
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Effect of Sentence Prime
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
Heterophone Match Flexible
Material
Pri
min
g (
Se
en
-No
t)
Same
Other
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Anova Confirms
• Interaction of Prime Type (Different vs.
Same Meaning) X Priming (Primed vs.
Unprimed)
• No significant effect of Materials.
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What did we conclude?
• Benefits are obtained when primed with
the appropriate meaning.
• No costs are observed when we prime
with the inappropriate meaning.
• Possibility was that presenting definition
cue overcame any effect of the
appropriate meaning.
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What I neglected
• I plotted data as a difference score (cost or
benefit in relation to the non-presented
items).
• I neglected to plot the data comparing
primed vs. unprimed items.
• So lets look at that in the next slide.
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Effect of Sentence: Proportion Correct on Vocabulary Test
0
0.1
0.2
0.3
0.4
0.5
0.6
Same Other Same Other Same Other
Heterophones Match Flexible
Condition
P(c
orr
ec
t)
Seen
Not
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What may we conclude now
• Retrieving an appropriately primed word
may interfere with baseline performance.
• More research is needed!
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Some Positives in the World
• Current issue of the American Scientist
has acknowledged our research as shown
on the next slide.
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Thanks for Listening!
Questions?