| Course | PS 350 Cognitive Psychology |
|---|---|
| Unit | Unit 5 |
| Paper type | Memory distortion paper |
| Length | About 1,010 words, 6 pages |
| Format | APA 7 student paper |
| School | Herzing University |
| Program | BS in Psychology |
| Updated | October 2026 |
Free sample paper for PS 350 Unit 5
Remembering "Sleep" From a List That Never Contained It: A Memory Distortion Paper on the Deese-Roediger-McDermott Paradigm, the Conditions It Requires and the Distance Between a Word List and a Courtroom
Student Name
Psychology, Herzing University
PS 350: Cognitive Psychology
Instructor Name
October 6, 2026
Remembering "Sleep" From a List That Never Contained It: A Memory Distortion Paper on the Deese-Roediger-McDermott Paradigm, the Conditions It Requires and the Distance Between a Word List and a Courtroom
Distortion as Evidence
Memory errors are not simply failures. Systematic errors reveal how memory is organized, because a system that makes predictable mistakes is showing the rules it follows. This paper examines one laboratory paradigm that produces false memories reliably, describes the conditions it requires, and keeps what it demonstrates separate from what has been claimed about memory in courtrooms and therapy.
The Paradigm
Roediger and McDermott (1995) revived and developed a procedure first used by Deese, now called the Deese-Roediger-McDermott paradigm. Participants hear a list of words, such as bed, rest, awake, tired, dream, snooze and blanket, all strongly associated with a word that is never presented, in this case sleep. That missing word is called the critical lure. After each list, participants recall as many words as they can, and at the end of the session they take a recognition test that includes studied words, unrelated new words and the critical lures.
What It Produced
Participants frequently recalled the critical lure as if it had been on the list. In the authors' first experiment, the lure was recalled at a rate comparable to words that had actually been presented in the middle of the lists, and in the second experiment, with more lists, the false recall rate was higher still. On the recognition test, critical lures were falsely recognized at rates approaching those for studied words. Most strikingly, when participants were asked whether they specifically remembered hearing a word or merely knew it had been presented, they often reported specifically remembering the critical lure, a subjective experience of recollection for an event that did not occur.
The Conditions It Requires
The effect depends on specific conditions. The lists are built so that many words converge on a single associate; lists with weaker associations produce fewer false memories. Words are presented quickly, one after another, and testing follows soon after. Participants are typically college students tested in laboratory settings with neutral words. Explanations of the effect usually propose that hearing many associates activates the critical lure, and that participants later fail to tell activation that came from their own thoughts from activation that came from hearing a word, a failure of monitoring the source of a memory.
Why Associations Produce the Error
The paradigm's lists are built on a model of how knowledge is organized. Collins and Loftus (1975) proposed that concepts in memory are linked in a network, and that activating one concept spreads activation along its links to related concepts, more strongly to closely related ones. On that account, hearing bed, rest, tired and dream in quick succession sends activation from each word to sleep, and the accumulated activation can make sleep as available as the words actually heard. The false memory is then a consequence of the same organization that normally makes memory efficient: related ideas come to mind together. This is why the effect is better described as a by-product of a well-designed system than as a malfunction.
The encoding research points in the same direction. Processing words for their meaning, which Craik and Tulving (1975) found produced the best memory for studied words, is also the kind of processing that links each list word to its associates, including the one never presented. A memory system that encodes meaning richly gains accuracy for what was experienced and, under these specific conditions, a vulnerability to what was merely implied. That trade-off is the general lesson the paradigm offers about reconstruction.
What the Paradigm Demonstrates
Under these conditions, the paradigm demonstrates that ordinary associative processes can produce confident false memories of events, specific words, that never occurred, and that people can experience such memories with the same subjective sense of recollection as real ones. It shows that confidence and vividness are not reliable signs that a memory is accurate. These are significant findings about how memory works, obtained under well-controlled conditions and reproduced many times. They also give researchers a dependable way to produce false memories on demand, which makes it possible to test ideas about how such errors arise and what reduces them, something that is impossible with naturally occurring errors that cannot be checked against what really happened.
What It Does Not Demonstrate
The paradigm concerns words in lists. It does not show that people form false memories of complex personal events, of crimes or of abuse, because those memories differ in content, emotional significance, how they are formed and how they are later questioned. Claims that the paradigm explains mistaken eyewitness identifications or proves that particular recovered memories are false extend it far beyond the conditions that produced it. Other research traditions, using different methods, address suggestion, misinformation after an event and the reliability of memories reported long after the fact, and those questions should be answered with that evidence. The recovered memory debate in particular involves clinical, legal and ethical issues that a word-list paradigm cannot settle.
Why the Paradigm Still Matters for Testimony
Keeping the line does not make the paradigm irrelevant to real memory. It establishes a principle: memory reconstructs events using what a person knows, and the reconstruction can include items that fit the person's knowledge but were never experienced. That principle is a reason for caution in any setting where memory is treated as a record. It is not, on its own, evidence about any particular witness, and the step from principle to case requires evidence from that case.
Personal Examples
Most people can recall a time they were certain of a memory that turned out to be wrong. Such an experience may make the paradigm vivid, but it cannot show what kind of error occurred or why, and it adds personal detail the paper does not need. The laboratory findings make the point more precisely than any single anecdote. They also allow the error to be counted and compared across conditions, which no personal story can do.
References
Collins, A. M., & Loftus, E. F. (1975). A spreading-activation theory of semantic processing. Psychological Review, 82(6), 407-428. https://doi.org/10.1037/0033-295X.82.6.407
Craik, F. I. M., & Tulving, E. (1975). Depth of processing and the retention of words in episodic memory. Journal of Experimental Psychology: General, 104(3), 268-294. https://doi.org/10.1037/0096-3445.104.3.268
Roediger, H. L., III, & McDermott, K. B. (1995). Creating false memories: Remembering words not presented in lists. Journal of Experimental Psychology: Learning, Memory, and Cognition, 21(4), 803-814. https://doi.org/10.1037/0278-7393.21.4.803
PS 350 Unit 5 instructions, in plain terms
The fifth PS 350 unit asks students to write about memory distortion as evidence about how memory works. Expect to name the laboratory paradigm that produced an effect, describe its materials and procedure, report the conditions the effect required, and keep what was demonstrated under those conditions separate from what has been claimed about real testimony. Eyewitness research can be discussed if its own paradigms are used, rather than borrowing conclusions from word lists. The recovered memory debate involves clinical and legal questions that laboratory paradigms cannot settle, and the paper should say so rather than take a side. A personal memory that turned out to be wrong cannot show why the error occurred.
How this PS 350 Unit 5 example is built
Distortion is framed as evidence first. The paradigm is described by its materials, lists of associates converging on a lure, and its procedure of recall after each list and a final recognition test. Results are reported for recall, recognition and remember judgments. A section states the conditions the effect requires. Another explains the error through spreading activation and links it to the encoding research. Separate sections then set out what the paradigm demonstrates and what it does not, including eyewitness and recovered memory claims. A section explains why the paradigm still matters for testimony as a principle, and the close sets personal examples aside. Each claim about testimony is labeled as beyond the paradigm.
Reading the PS 350 Unit 5 rubric
Herzing's rubric for the memory distortion paper usually weighs an accurate account of the paradigm, results reported with their measures, stated conditions, an explanation of the mechanism and a firm separation between demonstration and claims about real settings. The paradigm earns credit when materials and procedure are clear. Results score when recall, recognition and subjective judgments are kept apart. Conditions earn points when the paper names what the effect depends on. Mechanism is credited when an attributed account explains the error. Separation usually decides the grade, rewarding papers that refuse to extend word-list findings to testimony without evidence from that setting. Explaining the mechanism with an attributed model is often credited.
Common PS 350 Unit 5 mistakes, and how to avoid them
Memory distortion papers lose points when they move from a word-list experiment straight to conclusions about witnesses or therapy. Another frequent weakness is describing false memory as simple forgetting, which misses that the lure is actively remembered. Students often omit the conditions that produce the effect, implying it occurs everywhere. Some take a position in the recovered memory debate on the basis of laboratory findings. Others rely on a personal story of misremembering. Reporting recall alone, leaving out recognition and remember judgments, leaves out the evidence that the false memory feels real. Forgetting to mention that participants often report vivid recollection of the lure misses the most striking finding.
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PS 350 Unit 5 questions, answered
Can I write about eyewitness testimony?
Yes, and many sections assign it, provided you report the research rather than the headlines. Describe the studies, their procedures and their conditions, note where reviews agree and where they do not, and stop before any general verdict on what juries or courts should do. The research is genuine; the popularized version of it usually claims more.
How should I handle the recovered-memory debate?
As a live disagreement with named positions on both sides. Say what each group of researchers argues, on what evidence, and where the disagreement actually sits, then leave it open. A paper that resolves it in a sentence misreports the field, and a paper that avoids the area altogether loses the critical marks your readings were assigned to earn.
Can I use a memory of my own that turned out to be wrong?
A brief illustration is usually acceptable; anything more is not. A recollection of your own has no original record to check it against, which is the one thing these studies are built to supply, so it cannot evidence anything. Keep other people out of it entirely, and avoid any episode involving a family dispute, a legal matter or a clinical history.
Where can I find a free PS 350 Unit 5 sample paper?
At no cost, this page shows the PS 350 Unit 5 memory distortion paper, including the paradigm, its conditions, the mechanism and margin notes. Writing about a different distortion paradigm? Name the paradigm and we write the distortion paper for it, free.
Can I write about eyewitness testimony in PS 350 Unit 5?
Yes, using eyewitness research methods. The sample shows why a word-list paradigm supports only a general principle about reconstruction, not conclusions about any witness.