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The Stroop Effect
Outline
1. General points about the Stroop effect
2. Research before Stroop’s study
3. Stroop’s classic study
4. Research since Stroop’s classic study
5. Explanations for the Stroop effect
6. Stroop in the brain
Announcements
• Stroop is a replication and adaption of Experiment 2 in Stroop (1935); Global
Precedence will be an exact replication of Experiment 3 in Navon (1977) (minus
mask and audio beep); Priming will be a replication of Experiment 1 in Meyer &
Schvaneveldt (1971); Spatial Cueing of Attention will be a replication of Experiment 1
in Posner, Snyder, & Davidson (1980)
• Take what you learn in the tutorial sessions (September 19, September 26,
October 10, 11:00 – 12:00, SW 316) and apply that knowledge to analyzing
your own data set
• Data for the first three experiments (Stroop, Global Precedence, and Priming)
will be released Wednesday October 10, data for the fourth experiment (Spatial
Cueing) will be released October 24; this way, all groups will have 4 weeks to
analyze their data and write up their method and results sections
• Email Marco your data for Stroop
• Rubric for the Introduction posted on Quercus (announcements & course
materials)
Rubric for Introduction
• Content: The ‘meat’ of your introduction; how effectively you reviewed and
discussed literature pertaining to your research topic; did you provide a thorough,
thoughtful, and well-researched treatment of your research topic? 50%
• Description of your experiment: Clear (brief) description of the methods of your
experiment; clear statement of your hypothesis. 20%
• Grammar / clarity of writing: Appropriate use of grammar; clearly written
sentences and paragraphs; summaries and linking sentences provided where
appropriate. 10%
• Structure / formatting: Introduction is structured logically, making review of the
literature easy to follow throughout; APA format followed throughout, including a title
page. 10%
• Referencing: Appropriate number of references used / appropriate references used
/ appropriate APA reference style used; must use at least 10 new references, not
discussed in class; references used are appropriate to your research topic;
references must be cited, both within the body of the introduction, and in the
reference list at the end, using APA style. 10%
1. General points about the Stroop effect
The Stroop Effect
John Ridley Stroop
(1897 – 1973)
• Published his hugely influential paper in
1935: Studies of Interference In Serial Verbal
Reactions
• Interested in source of interference
between naming colours and reading words
• Found strongest interference when naming
colour of ink the words were printed in (i.e.,
implicit reading of the name of the word
interfered with naming ink colour of word)
• Very robust effect, and hundreds of studies
have been published on what became known
as ‘The Stroop Effect’
A Huge Number of Citations…

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Stroop1.pptx

  • 2. Outline 1. General points about the Stroop effect 2. Research before Stroop’s study 3. Stroop’s classic study 4. Research since Stroop’s classic study 5. Explanations for the Stroop effect 6. Stroop in the brain
  • 3. Announcements • Stroop is a replication and adaption of Experiment 2 in Stroop (1935); Global Precedence will be an exact replication of Experiment 3 in Navon (1977) (minus mask and audio beep); Priming will be a replication of Experiment 1 in Meyer & Schvaneveldt (1971); Spatial Cueing of Attention will be a replication of Experiment 1 in Posner, Snyder, & Davidson (1980) • Take what you learn in the tutorial sessions (September 19, September 26, October 10, 11:00 – 12:00, SW 316) and apply that knowledge to analyzing your own data set • Data for the first three experiments (Stroop, Global Precedence, and Priming) will be released Wednesday October 10, data for the fourth experiment (Spatial Cueing) will be released October 24; this way, all groups will have 4 weeks to analyze their data and write up their method and results sections • Email Marco your data for Stroop • Rubric for the Introduction posted on Quercus (announcements & course materials)
  • 4. Rubric for Introduction • Content: The ‘meat’ of your introduction; how effectively you reviewed and discussed literature pertaining to your research topic; did you provide a thorough, thoughtful, and well-researched treatment of your research topic? 50% • Description of your experiment: Clear (brief) description of the methods of your experiment; clear statement of your hypothesis. 20% • Grammar / clarity of writing: Appropriate use of grammar; clearly written sentences and paragraphs; summaries and linking sentences provided where appropriate. 10% • Structure / formatting: Introduction is structured logically, making review of the literature easy to follow throughout; APA format followed throughout, including a title page. 10% • Referencing: Appropriate number of references used / appropriate references used / appropriate APA reference style used; must use at least 10 new references, not discussed in class; references used are appropriate to your research topic; references must be cited, both within the body of the introduction, and in the reference list at the end, using APA style. 10%
  • 5. 1. General points about the Stroop effect
  • 6. The Stroop Effect John Ridley Stroop (1897 – 1973) • Published his hugely influential paper in 1935: Studies of Interference In Serial Verbal Reactions • Interested in source of interference between naming colours and reading words • Found strongest interference when naming colour of ink the words were printed in (i.e., implicit reading of the name of the word interfered with naming ink colour of word) • Very robust effect, and hundreds of studies have been published on what became known as ‘The Stroop Effect’
  • 7. A Huge Number of Citations…