Final answer:
The Working Memory Index (WMI) is a measure of an individual's ability to hold and manipulate information in their working memory during cognitive tasks. It assesses skills such as digit span, letter-number sequencing, and spatial span. Secondary capacities refer to the specific abilities required for successful performance on the WMI subtests.
Step-by-step explanation:
The Working Memory Index (WMI) is one of the five indices of the Wechsler Intelligence Scale for Children - Fifth Edition (WISC-V), a widely used intelligence test. The WMI assesses an individual's ability to hold and manipulate information in their working memory during cognitive tasks. It includes subtests that measure skills such as digit span, letter-number sequencing, and spatial span. The WMI provides a measure of a person's working memory capacity, which is important for various cognitive processes.
Working memory is a temporary storage system that allows us to hold information in our mind and work with it. It is involved in tasks such as mental arithmetic, problem-solving, and comprehension. The WMI measures this capacity and provides insight into an individual's ability to retain and manipulate information in their mind.
Secondary capacities refer to the specific abilities required for successful performance on the Working Memory Index subtests. For example, digit span tasks require the ability to remember and recall sequences of numbers, while letter-number sequencing tasks demand the ability to retain and manipulate letters and numbers in a specific order. These secondary capacities contribute to an individual's overall performance on the WMI.