Which of the following statements about visual search tasks is most correct?
A)
The difficulty of the task always increases as the number of items in the field increases.
B)
The task becomes less difficult when it includes searching for the colour and shape of the item as opposed to just the shape.
C)
The number of items in the field does not affect the difficulty if the target item is the only one of that colour.
D)
The difficulty of the task is increased if a subset of items, including the target, are highlighted.
Answer: C