indexing capacity
medicalstudent | 3 years ago
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It's intended to be a normalized value of reaction time. But it's a very risky abstraction, because the comparison theoretically shouldn't hold across different task domains. But other than that, it's hard to make comparisons (even with just "% correct")
cognitivefun | 3 years ago
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the "/" wasn't an "or".... it was a division bar
what would combined divided by % correct index?
at first i thought % correct was short term storage but it seems like more than this upon further reflection; it seems like wmc.
combined seems like a marker of processing speed or inspection time.
what would combined divided by % correct index?
at first i thought % correct was short term storage but it seems like more than this upon further reflection; it seems like wmc.
combined seems like a marker of processing speed or inspection time.
medicalstudent | 3 years ago
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The issue is that "combined" is usually some measurement, divided by "% correct." For those who are interested, this comes from the standard measure of "reading efficiency," which is given as raw WPM * comprehension score (given in percent, administered on factual information for a corpus).
Combined results for other tasks would just involve the analogous operation of (variable of interest) / (score measurement). This also means that in most cases, you cannot compare one combined measurement of one task with that of another.
If you further divide this by % correct, you effectively get VOI / score^2. Intuitively, this produces a VOI with a weighting that accentuates the differences between subjects.
My guess is that WMC measurement would be a combination of item span (for pure STM capacity) and other tasks involving executive function. The latter measurement is very tricky, though, because it is still far from exact.
Combined results for other tasks would just involve the analogous operation of (variable of interest) / (score measurement). This also means that in most cases, you cannot compare one combined measurement of one task with that of another.
If you further divide this by % correct, you effectively get VOI / score^2. Intuitively, this produces a VOI with a weighting that accentuates the differences between subjects.
My guess is that WMC measurement would be a combination of item span (for pure STM capacity) and other tasks involving executive function. The latter measurement is very tricky, though, because it is still far from exact.
cognitivefun | 3 years ago
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medicalstudent | 3 years ago
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medicalstudent | 3 years ago
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medicalstudent | 3 years ago
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