Criterion is the standard or value by reference to which what is perceived and interpreted is evaluated and chosen between.
Canonical definition
Criterion is the third act-level dimension of discernment. It converts perception and interpretation into evaluation by supplying the measure against which the interpreted material is judged. Without Criterion, the discerner can see and understand a situation but cannot evaluate it—cannot answer the question “is this good or bad, true or false, fitting or unfitting, reliable or deceptive?” Criterion may be explicit (a written standard, a diagnostic protocol, a moral principle) or tacit (an internalized sense of quality, a trained instinct for what fits).
Function
Criterion provides the evaluative standard that transforms understanding into judgment. Its function is to supply the measure against which the interpreted material is assessed. A diagnosis must be evaluated as fitting this patient’s presentation. An inner movement must be evaluated as authentic or illusory consolation. An action must be evaluated as conducive to justice or injustice. An interpretation of events must be evaluated as reliable or speculative. Criterion is the dimension that answers the question “so what?”—so what does this mean, and does it matter?
Mechanism
Criterion operates through standards, whether explicit or tacit. It compares the interpreted material to the standard to determine fit, sufficiency, and worth. It uses both qualitative judgment (is the fit right?) and quantitative thresholds (is there enough?). It works through anchoring and adjustment, starting with a known standard and modifying it to account for the particular features of this case. It uses contrast, placing the matter at hand against alternatives to determine relative value. It includes the refusal to substitute one criterion for another: recognizing when an interpretation meets the criterion of clinical plausibility but fails the criterion of moral acceptability, and refusing to let plausibility substitute for morality.
Primary failure mode
The primary failure mode of Criterion is criterion drift—the slow, often unconscious shift away from the proper standard toward an easier or more convenient one. The physician drifts from the criterion of “does this serve the patient’s health?” to “is this profitable?” The intelligence analyst drifts from “what does the evidence actually show?” to “what would my superiors like to hear?” The spiritual discerner drifts from “is this consolation from God?” to “does this make me feel good?” Criterion drift is often invisible to the drifting agent. A second failure is criterion confusion—applying the wrong standard to the material (judging a poem by scientific truth rather than aesthetic merit, judging a medical decision by cost rather than patient welfare). A third is criterion inflation—setting an impossibly high standard such that no action can meet it, effectively paralyzing decision.
Relationship to adjacent dimensions
Criterion receives its material from Interpretation and delivers its output to Telos and Commitment. Where Interpretation answers “what is this?” Criterion answers “is this worthy?” Criterion works in dynamic relation to Telos: the governing end supplies the ultimate standard against which intermediate criteria are judged. Criterion is conditioned by Disposition: a corrupted Disposition causes the agent to apply looser standards to outcomes that serve their hidden ends and stricter standards to outcomes that threaten them. Criterion is refined by Calibration over time, as experience reveals which standards were reliable and which produced systematic error.
For a complete map of how Criterion interacts with all other model elements, see Element Relationships. For detailed analysis of criterion misalignment and criterion capture, see Failure Modes. For the critical structural distinction between Criterion and Telos, see Criterion vs Telos.
Worked examples across domains
Ignatian spirituality
In the Ignatian tradition, the Criterion for authentic consolation is its source and its direction. Consolation from God leads toward greater justice, mercy, and love; toward service rather than self-interest. Consolation from deception leads toward self-justification, toward spiritual inflation, toward the service of hidden ends. The Rules for Discernment are largely Criterion statements: they supply the measure by which consolation is evaluated. A person may feel moved, but the Ignatian discerner asks: does this movement meet the Criterion of authentic consolation, or does it betray the marks of deception?
Clinical medicine
In clinical practice, the primary Criterion is patient welfare. A treatment is evaluated against the standard “will this improve this patient’s health or reduce their suffering?” But Criterion is not monolithic: the physician must also ask “is this proportionate?” (Criterion of proportion), “does this respect autonomy?” (Criterion of respect), “can I justify this to myself and to society?” (Criterion of integrity). When these Criteria diverge, the physician faces a genuine dilemma. The drifting physician replaces “patient welfare” with “ease of management” or “institutional liability,” and the quality of care degrades invisibly.
Intelligence analysis
In intelligence analysis, the Criterion is evidence sufficiency: does the evidence available to this analyst, at this time, support this judgment to the degree required by the decision-maker’s need? The analyst must distinguish between “I have strong evidence for this judgment” and “I would like this judgment to be true.” Criterion drift is the most common cause of intelligence failure: the analyst unconsciously shifts the evidential standard downward when the evidence points to a preferred conclusion and upward when it points to a dispreferred one. The result is analysis that confirms rather than tests assumptions.
Historical provenance
In Aristotle, Criterion corresponds to the determination of whether a particular action exemplifies virtue—whether it is appropriate in amount, direction, timing, and motivation. In Aquinas, it relates to natural law as the measure of right action. In Kant, it corresponds to universalizability—the test of whether a maxim can be willed as universal law. In pragmatism, it corresponds to the test of workability: does the interpretation produce expected results? In logic, it corresponds to logical validity as the standard for correct reasoning. In aesthetics, it relates to taste—the judgment of beauty or fittingness.
Open questions and known limitations
The model does not yet fully address how multiple Criteria are to be integrated when they point in different directions: when patient autonomy (one Criterion) conflicts with patient welfare (another Criterion). The model distinguishes between Criterion and Telos, but the relationship is complex: is Telos another kind of Criterion (the ultimate standard), or is it a distinct dimension that supplies the integrating principle when Criteria diverge? This remains open. Additionally, the model does not fully account for cases where the Criterion itself is under dispute: when two parties disagree not about the facts or the interpretation but about what Criterion should be applied—as in the conflict between market efficiency and social justice in economic policy.
FAQ
What is Criterion in the discernment model?
Criterion is the standard or value by which what has been perceived and interpreted is evaluated. It is the dimension that answers “is this good or bad, true or false, fitting or unfitting?”
How does Criterion differ from Interpretation?
Interpretation determines what something is. Criterion judges whether it is good. You might interpret a remark as sarcasm (Interpretation) but evaluate it as mean-spirited (Criterion). The question “what is it?” and the question “is it worthy?” are logically distinct.
Can Criterion change?
Yes, but carefully. Reconsidering Criterion is appropriate in response to new understanding or new circumstances. Criterion drift—unconsciously shifting standards to justify what you already want to believe—is one of the primary pathologies of judgment. The key is whether the change in Criterion is conscious and can be defended or whether it is unconscious and self-serving.
How does Criterion relate to Disposition?
Disposition is the state of the agent; Criterion is the standard applied. A corrupted Disposition causes the agent to apply loose standards to outcomes that serve their hidden ends and strict standards to outcomes that threaten them. This is unconscious calibration toward self-serving conclusions.
Pudlock, Bob. “Criterion.” Modern Discernment Model v0.9. moderndiscernment.com/model/v1/criterion. April 2026.