Question

which preattentive attribute is being used in the following chart to draw the reader’s attention?
chart with vertical bars (one longer than others)
○ a. color
○ b. orientation
○ c. length
○ d. size

Explanation:

To determine the preattentive attribute, we analyze each option:

• Option a (Color): All bars seem to have the same color, so color is not the attribute.
• Option b (Orientation): All bars are vertically oriented, so orientation is not the attribute.
• Option c (Length): The bars have different lengths, and the longer bar stands out, which is a preattentive attribute related to length.
• Option d (Size): Size typically refers to area/volume, but here the difference is in the vertical length of the bars (height), so length is more accurate than size.

Answer:

c. Length