AIM Framework glossary

Lead-Tag-Last Heuristic

Canonical definition

The Lead-Tag-Last heuristic is a descriptive convention for characterizing mixed-motivation Behavioural Episodes by identifying the dominant source (Lead: highest intensity wA, wI, or wM), the secondary source (Tag: non-trivial but lower influence), and the tertiary source (Last: minimal contribution), acknowledging that most real behaviours combine multiple sources while having one primary driver.

Explanation

Most real desires are not purely A, I, or M, they combine multiple sources with different weights. The Lead-Tag-Last heuristic provides a concise format for describing this mix without forcing choices into artificial pure categories. Example: pursuing a prestigious degree might be "M-led (status signaling), A-tagged (financial security), I-last (some genuine subject interest)" or "I-led (genuine fascination with the subject), A-tagged (need for employment), M-last (mild status awareness)." The Lead source predicts the primary behavioural signature (persistence, satiation, observability-dependence), while Tag and Last capture secondary influences. This heuristic improves empirical work by allowing researchers to acknowledge motivational complexity while still identifying the dominant driver for analytical purposes.

Epistemic status

Framework-Specific Diagnostic.

Derivation

Chapter 9, Section 9.3.2.

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