Final answer:
The term 'Set size: the number of items to search for' is the search term correctly matched with its definition. Other terms such as pop-out effect, single feature search, and conjunction search were not accurately matched in the student's examples provided.
Step-by-step explanation:
The search terms and their corresponding definitions related to visual search tasks can be quite specific. In the context provided:
- The pop-out effect refers to a phenomenon where an object stands out immediately against a background of other objects, making it rapidly and easily identifiable regardless of the number of items in the visual field, not just in a small set size as suggested.
- Single feature search is when the object of interest is defined by a single distinguishing feature, making it relatively easy to locate.
- A conjunction search is a type of visual search where the target can be identified by two or more features that together distinguish it from the distractors, not necessarily requiring three or more as stated.
- The term set size indeed refers to the number of items in a display or visual field that a person is searching through.
Based on these clarifications, the search term correctly matched with its definition is number 4, 'Set size: the number of items to search for.'