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linear scanning is cognitively more demanding than circular scanning, it is relatively straightforward and easy to learn. However, it may be inefficient if there are many items in the set (e.g., in a grid consisting of 8 items per row, if the desired item were the 7th item in the 4th row, the scanning indicator would have to scan through 30 undesired items first before reaching the desired item.
* In group-item scanning, items are grouped (e.g., by row, column, or other meaningful categories) and the scanning indicator will first scan

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