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Multiblock process structure, profiles, and external validity

Conceptual feature blocks

blocks <- process_feature_blocks(
  person_data,
  blocks = list(
    Psychometric = c("theta_hat", "mean_accuracy"),
    Gaze = c("mean_rt_ms", "mean_dwell_ms", "mean_revisits", "mean_aoi_entropy"),
    Pupil = c("mean_pupil_peak", "mean_pupil_auc"),
    Quality = c("mean_valid_gaze_prop", "mean_valid_pupil_prop")
  ),
  id = "person_id"
)

mfa <- fit_multiblock_process_map(blocks)
multiblock_person_coordinates(mfa)
multiblock_variable_coordinates(mfa)
multiblock_contributions(mfa)
plot(mfa, type = "individuals")
plot(mfa, type = "variables")

This is exploratory block-aware mapping, not a replacement for multimodal IRT.

Process-profile discovery

profiles <- fit_process_profile_mixture(
  person_data,
  variables = c("mean_dwell_ms", "mean_pupil_peak", "mean_aoi_entropy", "mean_revisits"),
  k = 3
)
process_profile_summary(profiles)
process_profile_probabilities(profiles)
plot(profiles, type = "profiles")

Profile names remain neutral until externally validated.

External validity

valid <- audit_process_external_validity(
  person_data,
  criterion = "independent_task_score",
  predictors = c("theta_hat", "mean_pupil_peak", "mean_dwell_ms", "mean_aoi_entropy"),
  baseline_predictors = c("age")
)

process_criterion_associations(valid)
incremental_process_validity(valid)
plot(valid, type = "associations")
plot(valid, type = "incremental")

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.