MemoryLab-3 - Part A 1 The p-value for the class false...

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Part A 1. The p-value for the class’ false alarm rate, as well as the p-value for sensitivity were both under 0.05, indicating that the difference between the recall mean and the recognition mean for each measure was statistically significant. It appeared that using recognition memory resulted in a higher false alarm rate, while recall memory produced greater sensitivity. 2. Recognition is more likely to produce false alarms than recall tests because recognition tasks allow you to visually assess the terms, which makes it easier to formulate false associations between words. Sensitivity demonstrates a similar trend because it is calculated by dividing the hit rate by the false alarm rate. If the hit rate is not statistically different between recognition and recall, the numerator remains relatively unchanged, but recognition demonstrates a larger false alarm rate, then sensitivity will be lower for recognition tasks. Recall, however, demands higher concentration and more critical thinking, which would allow the individual to be better able to distinguish between incorrect and correct words. Hit rate is likely to not demonstrate a statistical difference between recognition and recall tasks because the memory tasks are not different enough to prevent individuals from recognizing or remembering the correct word. The list of words are either read or spoken, so they are encoded mnemonically in similar ways regardless of the method of access. Recognizing the correct choice vs recalling the correct choice is more likely to demonstrate a statistical difference in how they err rather than in their independent accuracy rates, because it’s significantly easier to remember or recognize a correct word than to remember or recognize an incorrect word. Accuracy is likely to not to be statistically different between recognition and recall tasks because like hit rate, it measures accuracy from the standpoint of correctness rather than incorrectness. As stated earlier, it’s easier to choose the correct word when recalling or remembering than to choose or misremember an incorrect word. By definition, accuracy’s numerator sums “hits” and “correct rejections”, which means that performance is measured from a correctness standpoint rather than incorrectness, which would instead illuminate the differences between recall and recognition memory. 3. Sensitivity best describes memory performance because it takes into account all variables to assess overall performance; hit rate automatically incorporates misses, while false alarm rate incorporates correct rejections. Furthermore, sensitivity measures how likely the subject is to discriminate the correct answer and ignore critical lures, which is highly indicative of memory performance. Sensitivity also attempts to mitigate
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