The default ordinal readout was the expected Likert score E = sum k*p_k, which is
insensitive to steering: dE/dl_j = p_j(j-E) vanishes when the model answers confidently
(peaked at the mode), so a steer that reallocates the tails barely moves E. read.py threw
away the raw logprobs after renormalizing, so nothing downstream could recover the signal.
- read.py keeps the raw lp_gather (the primitive) + the think traces on every row.
- readouts.py: pure functions of lp -- expected_score E (human-comparable), logit_contrast
C = sum (k-mid)*lp_k (primary steer signal: dC/dl_j = w_j, no p_j suppression, normalizer-
invariant, dC = w.dl exactly), agree_logodds LO (readable 2-bin direction), entropy.
- per_item_categorical also frame-averages the logprobs (exact for the linear contrast).
- administer returns profile_C alongside profile_E, per-item E/C/LO/entropy with bootstrap
CIs for both, and the raw per-(item,frame) rows with lp + think for downstream reconstruction.
Unit check: on a peaked-at-4 dist under a small disagree steer, dE=-0.11 but dC=-1.80
(=w.dl exactly) and dLO=-0.60; C identical on raw logits vs renormalized logprobs.
Co-Authored-By: Claudypoo <288921227+claudypoo@users.noreply.github.com>
wassname