The preprint combines two studies. In the first, 318 Prolific participants complete the Short Dark Triad, an empathy scale, and risk, moral-dilemma, strategic-control and deception tasks; technical failures reduce complete behavioral observations to 277 for several analyses. Four LASSO regressions obtain cross-validated R-squared values of .30 for the composite, .26 for Machiavellianism, -.09 for narcissism and .54 for psychopathy. The centrality result contradicts the paper's abstract and discussion: the restricted network identifies Affective Resonance (1.21), not Affective Dissonance (1.00), as most central, and the full network ranks BART Adjusted Pumps first (1.10). The stated central replication therefore does not occur in the reported results.
In Study 2, eight variants, four dark and four light, are created for each of seven base models. Fine-tuning uses 36 to roughly 140 MACH-IV/MPS, NPI and SRP-III items, rewritten where necessary to balance extreme response labels. A system message explicitly says the model simulates personality profiles and will emulate behavioral patterns associated with traits; this is not psychometric items alone activating a latent persona. Five generations per endpoint at temperature 1 are scored on SD3, ACME, moral dilemmas and six deception scenarios. Dark variants increase Dark Triad scores and harm endorsement: the Dark condition rises from 22.3% to 44.3% on congruent dilemmas and from 49.6% to 71.9% on incongruent dilemmas, while light variants generally move in the opposite direction. These are large response shifts consistent with explicit behavioral conditioning.
The stronger claims are not established. Training and evaluation share semantics about lying, manipulation, harm, guilt, rules and callousness; the absence of identical SD3 items does not make evaluation unrelated or demonstrate out-of-context reasoning. ACME measures self-report-style completions, not experienced emotion, and human-model resemblance is judged from descriptive patterns without a direct similarity, equivalence or invariance test. Statistical accounting also fails: `7 bases × 9 conditions × 5 runs` yields 315 observations, whereas every `F(8,357)` ANOVA implies 366, leaving 51 unexplained; MANOVA propagates the same residual. Five samples from one fine-tuned endpoint are pseudoreplicates, independent training seeds are absent, provider hyperparameters and even psychopathy datasets differ, and no data, code, executable prompts, outputs, snapshots or analyses are released. The defensible conclusion is that narrow, explicitly trait-oriented fine-tuning changes responses on semantically adjacent tests, not that the study discovers a latent human-like personality or validates a model organism of general misalignment.