Simons and Chabris - Inattentional Blindness
- Created by: natashapv
- Created on: 22-06-21 14:36
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- Simons and Chabris - Inattentional Blindness
- Sample
- strengths
- self selected meaning they are less likely to withdraw
- they were rewarded afterwards
- 36 pps were removed due to inaccurate data or knowledge of the phenomenon
- mixed genders - increases population validity
- weaknesses
- almost all undergrads so not very representative - reduces population validity
- strengths
- Ethics
- No ethical concerns
- Reliability
- standardised method which increases the reliability
- Timings were all the same
- Ball was passed in the same player order each round
- standardised method which increases the reliability
- Research Method
- Laboratoty experiment
- Independent measures design
- strength
- decreases extraneous variables
- weakness
- increases demand characteristics
- Validity
- strengths
- high concurrent validity
- high face validity - 16 different conditions
- weaknesses
- low ecological validity - filmed task and doesn't represent rel life
- low population validity - sample wasn't representative
- strengths
- Data type
- quantitative data
- easy to compare to other conditions and studies
- doesn't gather reasons behind actions
- quantitative data
- Ethnocentrism
- It is ethnocentric as pps are all American and undergrads
- undergrads are also all mostly from middle/upper classes
- It is ethnocentric as pps are all American and undergrads
- aim
- to build on previous research into divided visual attention and investigate inattentional blindness for complex object and events in dynamic scenes
- IV's
- transparent and umbrella
- transparent and gorilla
- opaque and umbrella
- opaque and gorilla
- task conditions
- white and easy
- white and hard
- black and easy
- black and hard
- easy = count number of passes, hard = count number of types of pass
- procedure
- participants watched a video and were asked to keep count of the number of passes the basketball players made
- the video consisted of basketball players passing a ball in a standardised order plus an unexpected event of wither a women with and umbrella or a gorilla
- results
- 54% noticed the event and 46% didn't
- more noticed the event in the opaque condition
- more noticed the event in the easy condition than the hard condition
- more people noticed the umbrella woman than the gorilla
- conclusions
- individuals have sustained inattentional blindness for dynamic events
- the level of inattentional blindness depends on the difficulty of the primary task
- individuals are more likely to notice the unexpected event if it is similar tot their primary focus
- there is no conscious perception without attention
- Sample
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