AP Psychology: Retrieving Memories (Drill 11)

Question 1. After months of studying in the quiet back corner of the same library, Marcus takes his exam in a loud, unfamiliar auditorium on the other side of campus. He feels that the material, which he knew cold the night before, is suddenly harder to pull up. Which concept best explains his difficulty?

• A) the misinformation effect
• B) proactive interference
• C) context-dependent memory ✓
• D) the spacing effect

Explanation: Retrieval is easier when the environment at recall matches the environment where the material was encoded, that is context-dependent memory, and the mismatch between Marcus's library study space and the unfamiliar auditorium is exactly what undermines him. (A) describes how misleading post-event information distorts memory, which is not what is happening here; nothing has altered the content of his knowledge. (D) is the true-but-irrelevant distractor: the spacing effect is a real and well-supported principle about distributing study sessions over time, but it addresses how you learn, not why a familiar setting helps you retrieve. [Practice 1, Concept Application]

Question 2. On a standardized history test, one section asks "In what year did the Berlin Wall fall?" and another section asks "The Berlin Wall fell in which of the following years: 1979, 1989, 1999, or 2009?" Students generally perform better on the second type of item than the first. This pattern most directly illustrates the difference between:

• A) explicit and implicit memory
• B) recall and recognition ✓
• C) encoding and storage
• D) short-term and long-term memory

Explanation: Generating an answer without options given is a recall task; choosing from a provided set is a recognition task. Recognition is typically easier because the options themselves supply retrieval cues. (A) is a true-but-irrelevant distractor, explicit vs. implicit memory is a real and important distinction, but both test items above require explicit, conscious memory; what differs is the retrieval demand, not the type of memory system. (C) confuses the stages of memory processing with the style of retrieval test. (D) is unrelated: the information is in long-term memory in both cases. [Practice 1, Concept Application]

Question 3. In Loftus and Palmer's classic study, participants watched a film of a car accident and were later asked a question about the speed of the cars. The wording of the verb in the question varied across conditions: "smashed," "collided," "bumped," "hit," or "contacted." A week later, participants were asked whether they had seen broken glass in the film. Participants in the "smashed" condition were more likely to report seeing broken glass than those in the "contacted" condition, even though no broken glass appeared. Which conclusion is most strongly supported by the results?

• A) The participants in the "smashed" condition had worse long-term memories overall.
• B) Eyewitness testimony is essentially unusable in criminal investigations.
• C) Participants in the "contacted" condition encoded the film more deeply than those in the "smashed" condition.
• D) The wording of a later question can shape what participants report remembering about an original event. ✓

Explanation: The manipulated variable was the verb in the leading question, and the measured outcome, false reports of broken glass, tracked that wording, showing that post-event information can reshape memory reports. It is worth being careful here: the study demonstrates that memory is reconstructive and reports are vulnerable to suggestion, but it does not establish whether the underlying memory trace changed or whether participants simply reported differently. (B) is an overgeneralization that goes well beyond what the study shows; the research highlights caution, not uselessness. (A) conflates a specific reporting bias with a general memory deficit that the study did not measure. (C) reverses the likely explanation: there is no evidence the two groups encoded the film differently; they watched the same clip. [Practice 2, Research Methods]

Question 4. A researcher tests whether the emotional state a person is in at encoding and at retrieval affects memory. Participants are first induced into either a happy or a sad mood using a standardized mood-induction procedure, and then memorize a word list. A day later, each participant is re-induced into either a happy or a sad mood and tested for recall. Average words recalled: Encoded happy / Recalled happy: 18; Encoded happy / Recalled sad: 12; Encoded sad / Recalled sad: 17; Encoded sad / Recalled happy: 11. Which conclusion is most directly supported by these results?

• A) Happy moods produce better encoding than sad moods.
• B) Mood has no effect on the strength of encoding, only on retrieval.
• C) Recall is best when the mood state at retrieval matches the mood state at encoding. ✓
• D) The mere-exposure effect explains why participants recall words more easily on the second day.

Explanation: The data show a consistent matching pattern: performance is high when encoding and retrieval moods line up (18 and 17) and drops sharply when they mismatch (12 and 11). That is the signature of state-dependent memory, an internal state at encoding serves as a retrieval cue when re-created later, independent of which specific mood was used. (A) is not supported: both moods produce essentially equal recall when matched, so neither is superior on its own. (B) overreaches in the opposite direction, the data cannot fully separate encoding from retrieval effects, and the question just asks what is directly supported. (D) is a true-but-irrelevant distractor: the mere-exposure effect describes increased liking from repeated exposure to a stimulus, which is a real phenomenon but not what this study measured. [Practice 3, Data Interpretation]

Question 5. An elderly woman is shown a photograph of her wedding day, taken 60 years ago. She immediately describes the weather, the song that played during the first dance, and a private joke her husband told her at the altar, details she has not thought about in decades. Which combination of concepts best explains why a single cue unlocked such a rich set of memories?

• A) Retrieval cues activate associated information through spreading activation, and emotionally significant events are often more strongly consolidated by the amygdala. ✓
• B) Flashbulb memories are always perfectly accurate, so her recall must be veridical.
• C) The serial position effect explains why she can recall details from both early and late in the ceremony.
• D) Source amnesia explains the vividness of her memory because she can no longer separate reality from imagination.

Explanation: Two mechanisms work together: the photo is a retrieval cue that activates a web of linked memories through spreading activation across associative networks, and the emotional weight of the event likely strengthened consolidation via the amygdala, producing an unusually durable trace. (B) is a common misconception, flashbulb memories feel vivid and confident, but research has shown they are not immune to distortion. (C) is true in the abstract, the serial position effect is real, but it concerns memory for list positions, not for events within a personally meaningful ceremony; it is a true-but-irrelevant distractor. (D) misapplies a real phenomenon: source amnesia would undermine her confidence about what really happened, not explain vivid retrieval. Only (A) actually answers why a single cue unlocks so much content. [Practice 1, Concept Application]