FAST Working Memory and Information Retention — Questions and Answers
Question 1: Working memory capacity is BEST measured by:
- How many items can be recalled after an unlimited study period
- How many items can be maintained and manipulated while performing a concurrent task (Correct answer)
- The speed at which long-term memories are retrieved
- The total volume of facts stored in long-term memory
Correct answer: How many items can be maintained and manipulated while performing a concurrent task
Working memory is specifically about active maintenance AND manipulation of information under cognitive load — the concurrent processing demand is the defining feature. Simple recall without interference measures short-term memory, not working memory.
Question 2: A candidate hears the sequence 7-3-9-2-5 and must repeat it in reverse order. This task primarily tests:
- Long-term memory encoding
- The phonological loop's storage capacity only
- Working memory — specifically the central executive's manipulation function (Correct answer)
- Implicit procedural memory
Correct answer: Working memory — specifically the central executive's manipulation function
Reversing a sequence requires both holding the digits (storage) and mentally reordering them (manipulation) — this is the central executive function of working memory. Pure forward repetition tests storage only.
Question 3: According to Baddeley's model of working memory, which component handles verbal rehearsal (the 'inner voice')?
- Visuospatial sketchpad
- Episodic buffer
- Central executive
- Phonological loop (Correct answer)
Correct answer: Phonological loop
The phonological loop stores and rehearses verbal and auditory information through articulatory rehearsal (inner voice). The visuospatial sketchpad handles visual/spatial information; the central executive coordinates; the episodic buffer integrates across systems.
Question 4: A pilot remembers: runway 28L, wind 270/15, QNH 1013. ATC then issues a new clearance: descend to FL080. Which working memory phenomenon poses the greatest risk?
- Encoding failure during initial readback
- Displacement — new information pushing out earlier items (Correct answer)
- Retrieval failure from long-term memory
- Consolidation interference during sleep
Correct answer: Displacement — new information pushing out earlier items
Working memory has limited capacity. New, high-priority information (descent clearance) can displace earlier items (QNH, wind) — particularly if those items have not yet been written down or read back.
Question 5: Which technique BEST improves working memory performance during a complex aviation task?
- Mentally rehearsing information multiple times in sequence
- Trusting that critical details will be recalled naturally when needed
- Chunking information into meaningful groups (Correct answer)
- Increasing task pace to sustain arousal and alertness
Correct answer: Chunking information into meaningful groups
Chunking reduces the number of distinct units in working memory (e.g., treating '270/15' as 'westerly wind 15 knots' rather than six separate characters), effectively expanding functional capacity.
Question 6: A candidate's working memory score is at the 40th percentile. In the context of pilot aptitude testing, this MOST likely predicts:
- Difficulty with pre-flight calculations only
- Challenges in multi-task scenarios requiring simultaneous retention and processing (Correct answer)
- Inability to complete basic single-task flying manoeuvres
- No meaningful effect on flight training performance
Correct answer: Challenges in multi-task scenarios requiring simultaneous retention and processing
Working memory is most critical in high-workload, multi-task situations — exactly what pilots face. Lower capacity predicts difficulty holding ATC instructions while scanning instruments and managing tasks simultaneously, not failure at simple single-task operations.
FAST Working Memory and Information Retention
Working memory capacity is BEST measured by: