Did you consult your values before deciding, or construct a values story afterward? Post-hoc values are comfort, not input
Test for post-hoc rationalization by asking whether you consulted your values hierarchy before choosing or constructed a values-based story afterward—if values only appeared in the narrative after the decision, they were comfort mechanisms, not decision inputs.
Why This Is a Rule
Jonathan Haidt's moral reasoning research shows that people typically make decisions intuitively and then construct rational justifications afterward — the "emotional tail wagging the rational dog." The same process operates with values: you choose based on convenience, fear, or desire, then construct a values-based narrative that makes the choice feel principled. "I took the safe job because I value stability" — but did stability enter your decision-making before or after you chose?
The temporal test is binary: did you consult your values hierarchy before the decision (values as input) or did values appear in your explanation after the decision (values as rationalization)? Pre-decision consultation means: "My hierarchy says A > B, so I'll choose the option that honors A." Post-decision construction means: "I chose X, and looking back, it aligns with my value of Y." The first uses values to decide; the second uses values to comfort.
This doesn't mean post-hoc aligned decisions are wrong — a decision that happens to align with your values is fine. But if you're claiming values-guided decision-making, the values must have been present as inputs, not added as decoration afterward.
When This Fires
- During decision review (Review decisions in three steps: re-read reasoning blind, predict outcome, then compare — this sequence defeats hindsight bias) when evaluating whether a decision was genuinely values-guided
- When you notice yourself constructing a flattering values narrative about a decision already made
- When someone asks "why did you decide that?" and your first thought is to find a values-based justification
- Complements Write both values side-by-side and articulate the sacrifice: 'I am choosing X over Y because ___' — make the trade-off conscious (conscious trade-off articulation) with the temporal honesty test
Common Failure Mode
Seamless post-hoc rationalization: "I chose the prestigious job because I value growth and challenge." Did growth and challenge guide the decision, or did prestige and salary guide it and you're using growth-language to make it sound principled? The test: did you consult your values hierarchy before interviewing, or did the values narrative emerge after you got the offer?
The Protocol
(1) After any significant decision, apply the temporal test: "When did values enter my decision process? Before I chose, or after?" (2) If values were consulted before choosing (you referenced your hierarchy, weighed the trade-off, and chose based on value priority) → genuine values-guided decision. (3) If values appeared only in the explanation (you chose, then found values that justify the choice) → post-hoc rationalization. The decision was made on other grounds and dressed in values language. (4) For rationalized decisions: this doesn't make the decision wrong — but be honest about the actual decision inputs. What really drove the choice? Comfort? Fear? Social pressure? Financial incentive? Honest acknowledgment of actual inputs is more useful than a flattering values narrative. (5) Use the finding to improve: next time, consult the hierarchy before deciding (Use lexicographic ordering for value conflicts: satisfy the higher-ranked value first, then optimize the lower within that constraint).