Measurement-quality stress tests and negative controls

In eyeprocess: Harmonize Eye-Tracking, Pupillometry, Biometrics, and Psychometric Process Data

knitr::opts_chunk$set(collapse = TRUE, comment = "#>")
library(eyeprocess)

Milestone #2 turns measurement-quality perturbations into predeclared software-validation scenarios.

sp <- eyeprocess_stress_evidence_plan()
head(expand_eyeprocess_stress_evidence_plan(sp))
eyeprocess_reliability_evidence_plan()
eyeprocess_negative_control_evidence_plan()

Stress dimensions include gaze missingness, pupil dropout, calibration offsets, sampling jitter, AOI-label noise, device shifts, and trial imbalance. Reliability evidence includes split-half, ICC, temporal stability, and Bland-Altman-style agreement. Negative controls include permutations, temporal shifts, placebo windows, and intentionally known leakage.

Thresholds and perturbations are study-specific reporting conventions. Reliability is not validity, and negative-control/leakage findings are not misconduct labels.

eyeprocess documentation built on Sept. 28, 2026, 5:08 p.m.