Which of the following features of a study would make a conclusion about multitasking most convincing? A transport company asks drivers to complete a hazard...
Question 1 Report
Which of the following features of a study would make a conclusion about multitasking most convincing? A transport company asks drivers to complete a hazard-perception task either while receiving spoken route instructions or in silence. It wants to know whether divided attention affects safe driving behaviour.
(a) Name one suitable dependent variable. [1]
(b) Describe why random allocation to the two groups would be useful. [2]
(c) Evaluate one limitation of using a computer hazard task rather than real driving. [1]
Answer Details
(a) One from: number of hazards correctly identified, reaction time to hazards, number of missed hazards [1] (b) Random allocation reduces systematic pre-existing differences between groups [1]; for example, experienced drivers should be spread across conditions, making route instructions a more likely explanation for results [1]. [2] (c) The task may lack realism because there is no actual road risk or full driving demand, so behaviour may not generalise to real driving. [1]
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