An Experiment Was Done to Compare the Effect of Having

question 16

Multiple Choice

An experiment was done to compare the effect of having a conversation via a hands-free mobile phone,having a conversation with an in-car passenger,and no distraction (baseline) on driving accuracy.Twenty participants from two different age groups (18-25 years and 26-40 years) took part.All participants in both age groups took part in all three conditions of the experiment (in counterbalanced order) ,and their driving accuracy was measured by a layperson who remained unaware of the experimental hypothesis. What does the following output table tell us about the age variable?

• A)If we ignore all other variables,the driving accuracy of participants who were between the ages of 18 and 25 years were similar to that of participants who were between the ages of 26 and 40 years.
• B)If we ignore all other variables,participants who were between the ages of 18 and 25 years performed significantly differently than participants who were between the ages of 26 and 40 years.
• C)Participants who were between the ages of 18 and 25 years were less accurate drivers than participants who were between the ages of 26 and 40 years.This was a large effect.
• D)The decline in accuracy across the distraction groups was more pronounced for the younger drivers.

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Definitions:

Bonus Money

Additional income given over and above the usual compensation, often as a reward for performance.

Ratio

A relationship between two numbers indicating how many times the first number contains the second.

Wins to Losses

A ratio comparing the number of wins to the number of losses, often used in sports or other competitive situations to measure performance.

Maintain Ratio

The requirement to keep a consistent ratio, often used in the context of financial ratios by firms to ensure stability or compliance with regulations.