This 20-page exploratory preprint tests whether adaptive interviewing helps an LLM predict one-session human self-reports. Twenty volunteers aged 20 to 30 answer ten participant-specific questions generated by a DeepSeek reasoning model, five or six adaptive follow-ups, and then MBTI, a purported BFI-44, and 25 author-created moral and social scenarios. GPT-5 predicts the answers from Core-10, Full Interview, or an LLM-generated Summary. Aggregate scores are 0.379, 0.365, and 0.393 with substantially overlapping participant-bootstrap intervals, so Full does not outperform Core. The overall score mixes exact categorical and Likert accuracy with pairwise-order agreement for a single ranking item, despite different chance levels and semantics. In 340 Full categorical traces, 134 cite follow-up evidence and score 61/134 or 45.5%, versus 81/206 or 39.3% otherwise. The paired transition is 15 improvements and 6 degradations; an exact two-sided test gives p=0.0784, while Fisher's test for the two post-selected groups gives p=0.263 before accounting for participant and question clustering. Evidence use is a post-treatment label generated by the same trace being evaluated, and groups are not controlled for question difficulty or participant, so the association is not causal evidence that follow-ups help. Reasoning CIs resample individual predictions and ignore crossed clustering. Only 120 of 680 condition-specific traces receive any human verification; 60 are triple-annotated and 60 single-annotated. The reported 95% human agreement and 87.9% agreement with prelabels omit the statistic, uncertainty, class-wise reliability and chance correction despite extreme label prevalence. The 25 public dilemmas are bespoke items with conceptual paradigm references, not validated CNI, ERQ, Schwartz, Big Five or delay-discounting measures. Claimed consistency pairs change domains and response semantics; the PDF names Q21-Q25 while TeX and notebook use Q21-Q22. Notebook consistency code compares literal option labels across non-aligned and mixed-format pairs, making its 0.680 output uninterpretable. Instrument provenance is unresolved: the paper says BFI-44, but the current MindWorks link displays 50 Goldberg-based items, and the uniform 1-40 score plus 20/21 split is more consistent with ten items per trait than unequal BFI-44 trait counts. Big Five is then arbitrarily binarized, losing magnitude and exposing results to class imbalance. MBTI hit@2 is unusually permissive because some participants supply two types and the model two candidates. The fixed interview-first order can prime subsequent self-reports, and an LLM-generated summary may be optimized for another LLM; there are no counterbalanced, human-summary, or length-matched controls. Exact GPT-5 and DeepSeek snapshots, provider metadata and per-call settings are absent. All 20 paper pages, all 6 dilemma pages, complete TeX, and all 37 notebook cells and outputs were audited. The notebook depends on private Drive CSVs, handles one prediction file at a time, and contains no inference, multi-condition manifest, bootstrap, reasoning aggregation or human-agreement code. Its saved outputs are stale: Q17 is 0.725 in one cell and 0.1 in the next. Per-user accuracy also double-counts ranking by retaining raw Q17 and Q17_rep across 26 columns. Human responses, transcripts, predictions, 680 traces and annotations are unavailable, so the central result is not independently reproducible. No formal IRB review or official exemption identifier is supplied, and third-party API processing details for personal narratives are undocumented. The defensible contribution is a candid small pilot and an interesting elicitation-compression-grounding design. It does not establish that adaptive follow-up improves alignment, that generated explanations reveal internal mechanism, that the tasks measure behavior or stable personality, or a general task-adaptive representation rule.
The task-level breakdown is also important. The 25 outcomes comprise 17 categorical choices, seven Likert responses, and one ranking. Category accuracy is .391, .397, and .403 for Core, Full, and Summary; exact Likert agreement is .307, .236, and .329, while allowing a one-point error yields .579, .743, and .721. The ranking is converted into ten pairwise comparisons and scores .675, .730, and .675, with a different approximate chance level from the other formats. Averaging these quantities does not create a homogeneous accuracy measure. Of 680 Core and Full traces, only 120 unique traces, 17.6%, enter any human verification: 60 receive three labels and 60 only one. The reported 95% agreement among humans and 87.9% agreement with prelabels omit the agreement statistic, interval, chance correction, and class-wise results; 312 of 340 Full traces are classified as value-based, so prevalence alone can inflate agreement.
The study's personality measurements are not reproducibly identified. The paper calls its questionnaire BFI-44, but its current MindWorks link displays a 50-item Goldberg-derived instrument; uniform 1–40 trait ranges and a 20/21 split fit ten items per trait more naturally than BFI-44's unequal item counts. No archived form, key, or response data resolves the conflict. Scores are then binarized at an unvalidated threshold, and MBTI hit@2 allows both participant and model to offer two candidates. The public notebook depends on private Drive CSV files, evaluates one prediction file at a time, and contains neither model inference nor the three-condition assembly, bootstrap, reasoning aggregation, or human-agreement pipeline. Saved outputs conflict, Q17 is .725 in one cell and .1 in the next, and per-user scoring retains both Q17 and Q17_rep, averaging 26 columns and counting the ranking twice. The paper states that no formal IRB review occurred and invokes 45 CFR 46.104 category 2 without an institutional determination or exemption number. Personal narratives were sent to commercial APIs, but provider retention, processing terms, deletion, and consent for third-party transfer are not documented. These omissions do not erase the pilot's useful negative result that more context is not uniformly better, but they rule out a causal claim for adaptive follow-up and independent reproduction of the headline analysis.