Infrastructure · Data Structures

Correlation

Normalized statistical association; no causal conclusion by itself

Definition

Mechanism

A normalized measure of statistical association between two Variables under a selected correlation method. The coefficient lies in [-1, 1] and is interpreted according to that method. Correlation alone neither establishes nor rules out Causation, its direction, or an intervention effect.

Invariants

  1. The coefficient lies in [-1, 1].
  2. The correlation alone establishes neither the presence nor absence of Causation, its direction, nor an intervention effect, regardless of coefficient magnitude.

Risks

Failure modes

  1. Causal overreach

    the result alone is used to assert a causal relation, its absence or direction, or an intervention effect.

  2. Source ambiguity

    direct causation, reverse causation, confounding, and selection can produce similar coefficients, which correlation alone cannot distinguish.

  3. Method blindness

    dependence outside the selected method's sensitivity yields a weak coefficient that is read as independence.

Relationships

Builds on

References

Used by

References

Society

SomaticMarker

System health acting as an inhibitory emotion

Reference

Data schema

{
  "type": "object",
  "required": [
    "variable_a",
    "variable_b",
    "coefficient"
  ],
  "properties": {
    "variable_a": {
      "type": "string",
      "description": "First variable ID"
    },
    "variable_b": {
      "type": "string",
      "description": "Second variable ID"
    },
    "coefficient": {
      "type": "number",
      "minimum": -1,
      "maximum": 1,
      "description": "Normalized correlation coefficient [-1, 1] under the selected method"
    },
    "p_value": {
      "type": "number",
      "description": "Statistical significance of the correlation"
    },
    "sample_size": {
      "type": "integer",
      "description": "Number of observations"
    }
  }
}

Identity

Ref
Correlation#3bd8
Sema ID
sema:Correlation#mh:SHA-256:3bd8ecb518efc816c4c986e434afb9b2c3d3801b8099e008c15b70e305bd3043
Ring
1
Tier
1
Updated
2026-11-11
Supersedes
  • sema:Correlation#mh:SHA-256:091fbf1f3baec2028bbd64c9d2ff335ef41d9ec6ec992e1967c5bca02c777625
  • sema:Correlation#mh:SHA-256:3e6845523b8166fa55b82ef6ecd1ae129688fae1507fc6b4f92b9bc662936f42