Participants in a memory experiment read a list of words. They are then asked to count backwards by threes for a brief interval. Finally, they have to recall as many of the list words as they can. What is most likely the point of the backwards-counting task?
A) The task helps subjects to concentrate.
B) The task keeps the subjects interested.
C) The task prevents interference by other materials.
D) The task displaces the contents of working memory.

Question

Quizplus · Accepted Answer

The backwards counting task is likely intended to displace the contents of working memory, thereby reducing interference from other materials and allowing for better recall of the previously presented list of words. This is a common technique used in memory experiments to isolate the effects of various manipulations on memory performance. Choices A and B are less likely to be the primary point of the task, as there are other ways to enhance concentration and maintain interest that are not related to backwards counting. Choice C is partially correct, but does not fully capture the purpose of the task.

Participants in a Memory Experiment Read a List of Words