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McMaster University *

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1X03

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Psychology

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Dec 6, 2023

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docx

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6

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v/ Correct 1. It is tempting to compare human memory to memory storage on computers. Which of the following best illustrates the problem with such metaphors? A single computer file sent to several people would be identical, but memories of the same event can vary between individuals. Unlike the hard drive of a computer, the brain being damaged does not result in a loss of stored memories. A computer file is an immutable record, but memories are often altered and recalled differently over time. Feedback: Correct! Computer metaphors of mind are all misleading because they suggest a “memory” is discrete en- tity in the brain that can later be retrieved in its original form. Instead, memories are reconstructed “on the fly" at the time of remembering, and so are often altered or recalled differently depending on how they are reconstructed. v/ Correct 1. Imagine you are studying for a big final exam. However, because your schedule is jam packed with other commitments, there will be a 2 day period between your last study session and the final exam. What statement best captures this? There is a 2-day storage interval. There is a 2-day retention interval. Feedback: Correct! A retention interval is a fancy phrase that memory researchers use to describe the time that elapses between encoding (in this case studying) and the time of retrieval (the final exam). In other words, the information has to be retained in memory for that duration. Encoding and storage are separated by 2 days. Retrieval cues will be stronger after one day then after two days.
Vv Correct 1. The questions on your quizzes tend to fall into one of two categories. By looking over your previous tests, you realize that you seem to do relatively well on the multiple choice questions, but you stumble when it comes to those pesky long-answer questions. Which of the following might explain this difference? You are learning material at a sufficient level to perform well on multiple choice questions, but not recogni- tion-based questions. You are over-rehearsing the material. You are learning material at a sufficient level to perform well on recognition-based questions, but not recall-based questions. Feedback: Correct! You are performing well at recognition questions where very strong retrieval cues are provided (e.g., you can identify a key word in one of the options), but falling short on recall-based long-answer ques- tions that provide fewer retrieval cues (e.g., an open-ended question that forces you to recall the content from a whole unit of the course). v/ Correct 1. Chunking allows us to: store more information in short-term memory Feedback: Correct! Although simplified, it is often said the capacity of short-term memory is 7 + 2 "chunks" of infor- mation. Larger chunks allow more total information to fit within this limit, such as seven words versus seven letters. store more information in long-term memory bypass the short-term memory store group details of an event in the long-term memory store
v/ Correct 1. If a participant is read a long list of words and then asked to recall them, they are very likely to remember the first few words from the list. This is known as the effect. primacy v Feedback: Correct! The term used to describe a participant's increased likelihood of remembering the first few words on a list is the 'primacy effect’. You can remember this as follows: the first type of schooling that you go through is ‘primary" school. encoding recency incidence v/ Correct 1. Which of the following basic serial position curve experiment manipulations is correctly paired with its corresponding effect? Words in the list are read to the subject faster than normal increased primacy effect Words in the list are read to the subject slower than normal increased recency effect The subject completes a distractor task after hearing the words but before recalling them decreased recency effect Feedback: Correct! Completing a distractor task after hearing a word list but before recalling the items will ‘wipe' a participant's short-term memory, reducing the improvements in recall associated with the recency effect. The subject sits in silence after hearing the words but before recalling them decreased recency effect
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v Correct 1. Let's say you study a textbook chapter and want to determine how quickly you forget the content. TO denotes 0 minutes after studying, T2 denotes 2 minutes after studying, and so on. Which of the following statements best captures the forgetting of the content over time? The rate of forgetting will be highest at approximately T50. The rate of forgetting will be highest at approximately T100 More content will be forgotten between T1 and T5 than between T100 and T105. Feedback: Correct! The negatively accelerating forgetting curve suggests that the rate of forgetting per unit time is greater shortly after encoding, and gradually decreases as time moves on. More content will be forgotten between T100 and T105 than between T1 and T5. +/ Correct 1. Which of the following statements best captures forgetting via interference? A man forgets the items on his grocery list after taking a nap. A man forgets the items on his grocery list after writing out his to-do list. v Feedback: Correct! Forgetting via interference is most likely to occur when similar information is encoded after the original information. In this case, the grocery list was forgotten because the man engaged in a task involv- ing another list. A man forgets the items on his grocery list after watching his favourite TV show.
v/ Correct 1. Which of the following statements is true regarding the false memory experiments we just discussed? As time passes, implanted false memories are less likely to be remembered as true. False memories can easily be implanted for realistic situations, but unrealistic memories can rarely be implanted. If asked to imagine completing some event, subjects may later report having actually done it. Feedback: Correct! The key result here is that our memory is subject to alteration and manipulation. This is the reason that leading questions are forbidden in many court rooms - memory implantation can occur even for un- likely events! v/ Correct 1. Dr. Nightingale usually offers multiple-choice questions for her assessments. As a result, students taking her course have a tendency to cram the night before an assessment. On the latest test, Dr. Nightingale's students discovered that all the questions were instead open-ended. The average for that midterm was low. Which of the following options explains why the students’ performance was low? Open-ended questions offer a limited number of retrieval cues. Feedback: Correct! Given that multiple-choice questions rely heavily on the use of retrieval cues, the switch to open- ended questions was jarring because open-ended questions are recall-based long-answer questions that provide fewer retrieval cues. Dr. Nightingale's students were not prepared for a test with a limited number of retrieval cues. Open-ended questions rely heavily on the use of retrieval cues. Open-ended questions test for recognition of material.
+/ Correct . Tahib is a professional gamer who has been tasked to gather a few items for the annual camping trip with his family. Unfortunately, Tahib has a terrible memory and forgets to buy most of the camping items he was asked to; however, the items he happened to buy include a chess set, a checkers set, and a corn hole game set. Which of the following options explains why Tahib remembered to buy only these few items? Tahib processed all items at a deeper level. Tahib processed the items with semantic relevance at a deeper level. Feedback: Correct! According to the Levels of Processing principle, memory performance increases if connections are made between existing information and new information. In this case, Tahib is more likely to remember camping items related to gaming because he is a professional gamer. Tahib did not process any of the camping items at a sufficient level. Tahib processed the items with semantic relevance at a shallow level. Vv Correct 1. In regards to memory performance, which of the following options is unlikely to occur? Participants are more likely to recall items at the beginning of a list than those items written in the middle of the list. Participants who encode information at the deeper level are more likely to recall the information. After a 20-minute distractor task, participants would show an increased recency effect. v Feedback: Correct! We would not expect this result. When participants complete a distractor task after memorizing a list of items, we would see a decreased recency effect. Connecting words together in a sequence leads to better recall.
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