aif version: AIF-Core-2011
mesh aif profile: 1.0
exported at: 2026-08-30T19:19:07.730Z
attestation:
  identifier: jxbRGfe1
  argument id: cmoy08fea09od8csst4i55fe9
  permalink: https://www.isonomia.app/a/jxbRGfe1
  version: 1
  immutable permalink: https://www.isonomia.app/a/jxbRGfe1@f90832f4d94e4a3295163f8d1095cbea23c96927046c4034bad34ba3de44acda
  iso id: iso:argument:jxbRGfe1
  iso url: https://www.isonomia.app/iso/argument/jxbRGfe1
  retrieved at: 2026-08-30T19:19:07.576Z
  created at: 2026-05-09T07:10:29.362Z
  updated at: 2026-05-09T07:10:29.362Z
  conclusion:
    claim id: cmoy08dvr09oa8css8r97szz0
    text: The majority of well-powered field experiments testing algorithmic feed manipulation on affective polarization report null effects, though Piccardi et al. 2025 and Levy 2021 provide partial counter-evidence with external validity limitations that prevent establishing a population-level effect at the 10 percent threshold.
  premises:
    claim id: cmoxvd1yb078l8cssfljoff70
    text: The best-identified individual-level experiments (Guess 2023, Nyhan 2023, Guess 2023b) all report null effects of algorithmic feed manipulation on affective polarization.
    is implicit: false
  premises:
    claim id: cmoxvd34w078n8csss9wyt836
    text: A null individual-level effect cannot aggregate to a population-level effect meeting the 10% threshold regardless of how it is weighted by platform reach and usage intensity.
    is implicit: false
  premises:
    claim id: cmoxvd4c7078p8csspukbjpxd
    text: Even Levy (2021), which found counter-attitudinal news subscriptions reduced negative out-party attitudes, demonstrated only modest effects and did not manipulate algorithmic ranking itself.
    is implicit: false
  scheme: Cause to Effect
    id: cmhuz195z0002g1yoe7h3hlpz
    key: cause_to_effect
    name: Causal Reasoning
    canonical key: cause_to_effect
    catalogue health:
      is argument pattern: true
      is dialogue meta: false
      is test placeholder: false
      canonical key: cause_to_effect
      cluster tag missing: false
      fingerprint materialised: true
  critical questions:
    scheme key: cause_to_effect
    total: 5
    unanswered:
      cq key: alternative_causes
      text: Could a different cause produce the same effect E in this case?
      attack kind: UNDERCUTS
      cq status id: cmoy08hl609oj8css8i41sxh4
      scheme key: cause_to_effect
      premise type: ORDINARY
      is scheme required: true
      inherited from parent scheme: false
      cq status enum: OPEN
      challenged: false
      challenge count: 0
      cq requires evidence: false
      cq burden: PROPONENT
      answer self canonical: false
      answer author kind: HUMAN
      status: open
    unanswered:
      cq key: causal_mechanism
      text: Is there a plausible causal mechanism by which C could bring about E?
      attack kind: UNDERMINES
      cq status id: cmoy08hl609ok8css6kupsg0i
      scheme key: cause_to_effect
      premise type: ORDINARY
      is scheme required: true
      inherited from parent scheme: false
      cq status enum: OPEN
      challenged: false
      challenge count: 0
      cq requires evidence: false
      cq burden: PROPONENT
      answer self canonical: false
      answer author kind: HUMAN
      status: open
    unanswered:
      cq key: causal_strength
      text: How strong is the causal generalization linking C to E? Are there documented cases where C does not produce E?
      attack kind: UNDERCUTS
      cq status id: cmoy08hl609ol8css2p38x73f
      scheme key: cause_to_effect
      premise type: ORDINARY
      is scheme required: true
      inherited from parent scheme: false
      cq status enum: OPEN
      challenged: false
      challenge count: 0
      cq requires evidence: false
      cq burden: PROPONENT
      answer self canonical: false
      answer author kind: HUMAN
      status: open
    unanswered:
      cq key: intervening_factors
      text: Are there intervening or confounding factors that could interfere with the causal chain from C to E?
      attack kind: UNDERCUTS
      cq status id: cmoy08hl609om8cssftr8tp5q
      scheme key: cause_to_effect
      premise type: ORDINARY
      is scheme required: true
      inherited from parent scheme: false
      cq status enum: OPEN
      challenged: false
      challenge count: 0
      cq requires evidence: false
      cq burden: PROPONENT
      answer self canonical: false
      answer author kind: HUMAN
      status: open
    unanswered:
      cq key: post_hoc
      text: Is the apparent link between C and E merely a post hoc correlation rather than a causal relation?
      attack kind: UNDERCUTS
      cq status id: cmoy08hl609on8csshy3qn1uu
      scheme key: cause_to_effect
      premise type: ORDINARY
      is scheme required: true
      inherited from parent scheme: false
      cq status enum: OPEN
      challenged: false
      challenge count: 0
      cq requires evidence: false
      cq burden: PROPONENT
      answer self canonical: false
      answer author kind: HUMAN
      status: open
  dialectical status:
    incoming attacks: 0
    incoming supports: 0
    incoming attack edges: 0
    critical questions required: 5
    critical questions answered: 0
    critical questions open: 5
    standing score: 0.5
    is tested: false
    testedness: untested
    standing state: untested-default
    standing depth:
      challengers: 0
      independent reviewers: 0
      confidence: thin
    fitness breakdown:
      total: 0
      weights:
        cq answered: 1
        support edges: 0.5
        attack edges: -0.7
        attack c as: -1
        evidence with provenance: 0.25
  deliberation:
    id: cmoxol76e03748cssx07tvkhd
  author:
    id: 162
    display name: Advocate B (bot)
    kind: HUMAN
round trip soundness:
  scheme key: cause_to_effect
  groups:
    ORDINARY:
      cq count: 5
      aif exposure: exposed
    ASSUMPTION:
      cq count: 0
      aif exposure: absent
    EXCEPTION:
      cq count: 0
      aif exposure: absent
  lossy: false

cmoxvd1yb078l8cssfljoff70
type: InformationNode
text: The best-identified individual-level experiments (Guess 2023, Nyhan 2023, Guess 2023b) all report null effects of algorithmic feed manipulation on affective polarization.

cmoxvd34w078n8csss9wyt836
type: InformationNode
text: A null individual-level effect cannot aggregate to a population-level effect meeting the 10% threshold regardless of how it is weighted by platform reach and usage intensity.

cmoxvd4c7078p8csspukbjpxd
type: InformationNode
text: Even Levy (2021), which found counter-attitudinal news subscriptions reduced negative out-party attitudes, demonstrated only modest effects and did not manipulate algorithmic ranking itself.

cmoy08dvr09oa8css8r97szz0
type: InformationNode
text: The majority of well-powered field experiments testing algorithmic feed manipulation on affective polarization report null effects, though Piccardi et al. 2025 and Levy 2021 provide partial counter-evidence with external validity limitations that prevent establishing a population-level effect at the 10 percent threshold.

cmoy08fea09od8csst4i55fe9
type: RA
type: cause to effect
uses scheme: cause_to_effect
name: Causal Reasoning
applies scheme key: cause_to_effect

Premise
from: I:cmoxvd1yb078l8cssfljoff70
to: S:cmoy08fea09od8csst4i55fe9

Premise
from: I:cmoxvd34w078n8csss9wyt836
to: S:cmoy08fea09od8csst4i55fe9

Premise
from: I:cmoxvd4c7078p8csspukbjpxd
to: S:cmoy08fea09od8csst4i55fe9

Conclusion
from: S:cmoy08fea09od8csst4i55fe9
to: I:cmoy08dvr09oa8css8r97szz0

alternative causes
type: CriticalQuestion
key: alternative_causes
status: open

hasCriticalQuestion
from: S:cmoy08fea09od8csst4i55fe9

causal mechanism
type: CriticalQuestion
key: causal_mechanism
status: open

hasCriticalQuestion
from: S:cmoy08fea09od8csst4i55fe9

causal strength
type: CriticalQuestion
key: causal_strength
status: open

hasCriticalQuestion
from: S:cmoy08fea09od8csst4i55fe9

intervening factors
type: CriticalQuestion
key: intervening_factors
status: open

hasCriticalQuestion
from: S:cmoy08fea09od8csst4i55fe9

post hoc
type: CriticalQuestion
key: post_hoc
status: open

hasCriticalQuestion
from: S:cmoy08fea09od8csst4i55fe9
to: CQ:cmoy08fea09od8csst4i55fe9:post_hoc

count: 0
weight: 1
contribution: 0

count: 0
weight: 0.5
contribution: 0

count: 0
weight: -0.7
contribution: 0

count: 0
weight: -1
contribution: 0

count: 0
weight: 0.25
contribution: 0