Transactive Memory, explained.
Transactive memory is a shared system for encoding, storing and retrieving knowledge across people, including knowledge of who knows what.
Why it happens
Ari handles navigation, Bea tools and Chen power equipment. The directory disappears before six item requests; actual routing accuracy is counted without assuming a group-performance benefit.
Transactive memory is a shared system for encoding, storing and retrieving knowledge across people, including knowledge of who knows what.
Read the result
Routing accuracy measures recall of this directory, not whether distributed expertise outperforms individual memory in a real team.
A worked example
Find the teammate who holds the knowledge
Study the navigation, tools and power-equipment responsibilities assigned to the three teammates.
Hide the directory and route each of the six item requests to the person listed for that domain.
Compare actual routing answers with the directory and note any knowledge-location confusion.
OPTIONAL DEEPER DETAILGo deeper: inside the model
Inside this model
Ari handles navigation, Bea tools and Chen power equipment. The directory disappears before six item requests; actual routing accuracy is counted without assuming a group-performance benefit.
Where this idea is useful
A practical use
An up-to-date expertise directory can reduce the cost of finding the right colleague during an unfamiliar task.
A common misconception
“A team remembers only what every member individually knows.”
Members can contribute complementary knowledge when they know where expertise resides and can retrieve it reliably.
What this explanation leaves out
- This is an individual directory-recall task, not a measure of a real team’s shared memory or performance.
Why not make everyone memorise every item?
The task highlights locating expertise rather than duplicating all knowledge. Real teams still need redundancy, access and maintenance of the directory.
Which expertise would become difficult to find if one colleague were absent?
Associated thinkers
Associations marked provisional are awaiting source review.
Further reading
Explore the original research or the teaching reference behind this experiment.