Lab Study Questions
1) What is the purpose of the study?
To find out what can cause blindness in young adults.
2) What other research was presented that aligns with the study?
Given that such ‘‘change blindness’’ affects performance in real-world tasks such as driving
improving the ability to detect changes could have practical benefits.
improving the ability to detect changes could have practical benefits.
3) Who were the participants? Was it a representative sample? Is this a good population choice for this study?
40 young adults and 40 independent-living older adults. Yes it is because, there were an even amount in both groups and also they did not do just males or just females, they did both sexes.
4) What was the procedure?
Following a screening session, participants completed pre- training assessments on both transfer tasks, and were then randomly assigned to either the change detection training group or the active control group. They then completed 16 one-hour training sessions, followed by a post-training transfer session. Participants completed 2–3 sessions per week and finished the study in approximately 8–9 weeks.
Following a screening session, participants completed pre- training assessments on both transfer tasks, and were then randomly assigned to either the change detection training group or the active control group. They then completed 16 one-hour training sessions, followed by a post-training transfer session. Participants completed 2–3 sessions per week and finished the study in approximately 8–9 weeks.
5) What was the method of observation in this study? Survey? If so, were the questions purposeful. How did they code the behaviors if it was a naturalistic observation?
To see how the change blindness works and if it works the same for everyone or if the change blindness changes for everyone. The questions were very purposeful and the tried to make it look the same for everyone.
To see how the change blindness works and if it works the same for everyone or if the change blindness changes for everyone. The questions were very purposeful and the tried to make it look the same for everyone.
6) What were the results of significant findings of this experiment?
maintain 75% accuracy- Encoding speed.
maintain 75% accuracy- Accuracy.
maintain 75% accuracy- Encoding speed.
maintain 75% accuracy- Accuracy.
7) Conclusions of this study? Was there any observer bias? Was it an ethical experiment?
Although training on a change detection task improved performance, with participants requiring less encoding time for accurate change detection, that improvement did not transfer to a structurally similar one-shot change detection task or to a flicker change detection task. Both the training group and the control group improved when they completed the transfer tasks a second time, but they improved to equal extents. Change detection training did not improve change detection on other tasks, either in a similar one-shot change detection task with different stimuli or in a flicker change detection task with real-world images.
Although training on a change detection task improved performance, with participants requiring less encoding time for accurate change detection, that improvement did not transfer to a structurally similar one-shot change detection task or to a flicker change detection task. Both the training group and the control group improved when they completed the transfer tasks a second time, but they improved to equal extents. Change detection training did not improve change detection on other tasks, either in a similar one-shot change detection task with different stimuli or in a flicker change detection task with real-world images.
The lack of transfer from our object change detection task to another one-shot change detection task suggests that training effects were limited to the trained objects and did not enhance the underlying change detection processes or other mechanisms and strategies that would aid performance of the same task with different objects. That is, the improvements during training likely resulted from increased familiarity with the trained stimuli rather than from an improvement in underlying change detection ability.
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