ItemRest 1.0.0
- Record informational estimator messages without disqualifying
candidates. Silently preload GPArotation for rotations and restrict
message-driven review to explicit convergence, rotation, variance, and
matrix-repair problems.
- Scope validation correlations to requested item sets and isolate
constant-item failures. Suppress diagnostic variable tables printed on
correlation errors.
- Record source correlation warnings/messages once per analysis,
rather than attributing them to every subset. Detect identical
validation response values after row reordering; retain order-sensitive
bootstrap input checks.
- Label unassessed whole-set alpha as Not_assessed and remove unused
combination generation, sorting helpers, and the obsolete internal combs
argument.
- Validate extraction and rotation names before analysis, canonicalize
supported capitalization, and declare the default rotation’s GPArotation
dependency. Record estimator messages and flag reported
nonconvergence.
- Label Howard primary loadings below .40 as low loadings, and match
holdout factors and signs using linear assignment rather than factorial
enumeration. Add Min_Congruence and scaled CFA fit indices.
- Fingerprint numeric values and item names independently of row names
and integer/double storage. Explain that protected flagged items can
prevent candidate solutions and that unknown convergence remains
Not_reported.
- Keep fa parallel analysis as default and add parallel_method = “pc”.
Ordinal reference samples preserve observed category margins and missing
positions and use the same mixed/polychoric correlation estimator as the
observed data. Add configurable ordinal_categories, excluding NA from
category counts.
- Add bootstrap frequencies across all attempts as a conservative
sensitivity summary, predraw replicate rows and seeds, and provide a
progress bar.
- Label whole-set alpha as descriptive in multifactor models;
factor-specific reliability remains available. Store compact EFA results
by default, with store_fits = TRUE for full psych fit objects.
- Compute the original correlation matrix and pairwise observation
counts once per dataset and reuse submatrices in parallel analysis and
removal searches. Check positive definiteness and apply requested
smoothing per retained set. Validation EFA uses its own matrix; each
bootstrap replicate uses a new matrix. Expose correlation_matrix and
pairwise_n in discovery results.
- Replace the single optimal_strategy field with all screened
candidate_solutions. Candidate reporting is the default; report =
“optimal” is a deprecated alias.
- Reassess remaining items after removal, cache identical item sets,
retain the no-removal baseline, and label bounded searches as
incomplete.
- Add numerical admissibility, correlation positive-definiteness and
explicit smoothing, convergence status, factor correlations, factor
support, warnings, and branch-specific failure records. Unidentified
subsets are skipped.
- Add explicit missing-data handling, effective pair counts, parameter
checks, protected items, content notes, and scoring keys.
- Default ordering is discovery order; optional removal-count/variance
ordering never selects a winner. Oblique explained variance uses mean
model communality.
- Add factor-level alpha and model omega total, with separate raw,
standardized, and selected-correlation alpha labels. Preserve signed
loading ranges and add absolute ranges. Capture Howard failures below
the secondary .30 threshold.
- Add holdout EFA, optional lavaan CFA, disjoint sample splitting, and
bootstrap stability of the entire search with explicit
failure/incompleteness denominators.
- Add DDMMYYYY date-based default seeds (e.g. label 05102026 / seed
5102026), caller RNG restoration, configurable parallel-analysis
replications, and recorded settings and software provenance.
- Provide a reproducible simulated vignette and complete executable
workflow.
- Restore “Let algorithms be your compass, not your captain.” as the
final line of every printed analysis summary.
ItemRest 0.2.5.9000
(development version)
- Reassess low-loading and cross-loading items after each removal and
test further combinations of the remaining flagged items. Each distinct
item set is evaluated once and the factor count stays fixed throughout
the search.
- Add iteration, step-specific and cumulative removal counts,
remaining items, and remaining problem items to the removal summary
while retaining existing columns.
- Require both low-loading and cross-loading problems to be resolved
for optimal strategy selection and reporting.
ItemRest 0.2.5
- Fixed: The factor loading range in the summary table now correctly
displays raw values (including negative signs) instead of absolute
values.