Sight vs. Sound Reactions Gizmo | ExploreLearning

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Michal Kreiselman

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Sight vs. Sound Reactions

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Measure your reaction time by clicking your mouse as quickly as possible when visual or auditory stimuli are presented. The individual response times are recorded, as well as the mean and standard deviation for each test. A histogram of data shows overall trends in sight and sound response times. The type of test as well as the symbols and sounds used are chosen by the user.

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Assessment Questions (5):

A person takes a sight test and a sound test, with the results shown below. What is the most reasonable conclusion that can be drawn from this data?
- A. The subject seems to have faster sight reactions than sound reactions.
- B. The subject seems to have faster sound reactions than sight reactions.
- C. There was no difference in the subject's reaction times to sight and sound stimuli.
- D. The subject must have cheated to get any reaction times below 0.2 seconds.
A student conducts several tests of reaction time, resulting in the histogram below. What can be inferred from the histogram?
- A. The sight data has a greater mean and a larger standard deviation than the sound data.
- B. The sight data has a greater mean and a smaller standard deviation than the sound data.
- C. The sight data has a lower mean and a larger standard deviation than the sound data.
- D. The sight data has a lower mean and a smaller standard deviation than the sound data.
A reaction time contest is held. While most competitors had an average sound reaction time between 0.17 and 0.20 seconds, one person scored a fantastic 0.0713 seconds on average. The results of this test are shown below. What is the most likely explanation of this unusually low average time?
- A. The subject drank a beverage with a lot of caffeine just before the contest.
- B. The subject had very warm arms and hands.
- C. The subject was an avid video game player.
- D. None of the above.
A student wants to know if girls have faster reaction times to visual stimuli than boys. Which of the following variables should be the same in all tests?
- A. The gender of the person taking the test.
- B. The color of the object used in the test.
- C. Both A and B should be the same.
- D. Neither A nor B should be the same.
A student sets up an experiment according to the data table below. Based on the table, which question was the student most likely investigating?
- A. Which is faster, visual or auditory reaction times?
- B. Which person has the fastest reaction time?
- C. What visual object results in the fastest reaction time?
- D. Which sound results in the fastest reaction time?

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