Simons and Chabris Flashcards
What was the aim of research conducted by Simons and Chabris?
To build on previous research into divided visual attention and to investigate inattention blindness for complex objects and events in dynamic scenes
What is inattentional blindness?
The failure to see an event or object in your field of vision because you are focused on other element of what you can see.
How did Neisser test inattentional blindness?
In a recorded video two teams of basketball players would pass a ball from one player to the next. During this clip an expected event would happen, a women would talk across carrying an umbrella.
What research method was used in research by Simons and Chabris?
Lab experiment using an independent measures design.
What were the IVs in Simons and Chabris’s research?
- The Transparent/Umbrella Woman condition
- The Transparent/Gorilla condition
- The Opaque/Umbrella Woman condition
- The Opaque Gorilla condition.
For each of the four displays there were four task conditions:
(i) White/Easy
(ii) White/Hard
(iii) Black/Easy
(iv) Black/Hard
Overall there were 16 conditions.
What were the DVs in Simons and Chabris’s research?
The number of participants in each of the 16 conditions who noticed the unexpected event (Umbrella
Woman or Gorilla)
Outline the materials used in Simons and Charbis’s research.
Four video tapes, each 75 seconds long with 2 teams of three players, one dressed in white t shirts and one in black t shirts.
After 44-48 seconds of action either of two unexpected events occurred.
There were two styles of video: transparent and opaque.
Outline the sample used in the study.
228 participants, almost all undergraduate students.
Participants volunteered and were paid a small fee or received a candy bar.
36 participants were discarded so results were used from 192 participants. These were equally distributed across the 16
conditions.
Outline the procedure used in Simons and Chabris’s research
21 experimenters tested the participants. After viewing the video they were asked to write down the number of passes. They were then asked the following additional questions:
(i) While you were doing the counting, did you notice anything unusual in the video?
(ii) Did you notice anything other than the six players?
(iii) Did you see a gorilla/woman carrying an umbrella walk across the screen?
Outline the key findings from research by Simons and Charbris.
Out of all 192 participants across all conditions, 54% noticed the unexpected event and 46% failed to notice the unexpected event.
More participants noticed the unexpected event in the Opaque condition (67%) than the Transparent condition (42%).
More participants noticed the unexpected event in the Easy (64%) than the Hard (45%) condition.
The Gorilla was noticed by more participants who attended to the actions of the Black team than those who watched the White team (Black
58%, White 27%, per condition).
What main conclusions can be drawn from this research.
Individuals have a 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 unexpected events if these events are visually similar to the events they are paying attention to.
Evaluate the research method used in research by Simons and Charbris.
Controlled lab experiment which fulfilled scientific criteria.
High design validity, as extraneous variables are highly controlled.
However, participants may have been affected by demand characteristics.
Evaluate the data collected in research by Simons and Charbris.
Quantitative data was collected which can be easily summarised and compared between conditions.
Quantitative data can be statistically analysed, the study can also be easily repeated in order to establish reliability
Discus the ethical issues in the research by Simons and Chabris.
The study was conducted within the ethical guidelines,
To what extent can research by Simons and Chabris be seen as valid?
Used a highly controlled lab experiment, this study has high design validity.
As the participants knew they were in a study they may have tried to affect the outcome of the study.
The findings of this study were concurrently valid with both the computer based studies and Neisser’s earlier umbrella women video.