Advanced psychometric analytics for reliable, valid, and evidence-based assessment. Create instruments, collect responses, and run the full analytical pipeline — from classical test theory to item response theory — in one workspace.
Sample analysis — Career Readiness Scale
Cronbach's α
0.892
McDonald's ω
0.901
KMO
0.876
Bartlett's test
p < .001
Factors retained
5
Participants
624
Demo dataset — clearly labelled inside the platform.
The pipeline
Each stage writes into the next, so scoring, analysis and reporting always refer to the exact instrument version and response set they were produced from.
Write items, build scales and subscales, set reverse keys and weights in the test builder.
Invite participants by token link or assignment, with autosave, deadlines and mobile delivery.
Raw, weighted, percentage, z, T, stanine and percentile scores computed automatically.
CTT, reliability, validity, EFA, IRT, DIF, group comparison and test–retest stability.
Technical and individual reports with neutral interpretation and export to PDF or Excel.
Capabilities
Everything researchers, universities, assessment companies and HR teams need to develop and defend an instrument.
Ten item types, scales, subscales, reverse and weighted scoring, versioning and publishing.
Item difficulty, discrimination, corrected item-total correlation, alpha if item deleted.
Cronbach's α, McDonald's ω, split-half, test–retest r, ICC(2,1) and standard error of measurement.
Content validity index, convergent and discriminant correlations, criterion and known-groups evidence.
KMO, Bartlett, scree plots, rotated loadings, model fit indices, Rasch / 2PL / 3PL parameters.
Standardised mean difference (Dorans & Kulick) across focal and reference groups, flagged by severity.
Build norm groups by age, gender or cohort; percentile, T-score and stanine conversion tables.
CSV, Excel and JSON import/export, cleaning, missing-value handling and response quality flags.
Role-based access, organization isolation, row-level security, audit logs and hashed API keys.
Instrument development
Draft items with the visual builder, group them into scales and subscales, define reverse-keyed items and weights, then publish a version that stays locked to the responses collected under it.
Item types
10
Scale levels
Scale + subscale
Versioning
Locked per response
Illustrative visual — live modules render your own coefficients.
Analytics engine
Nothing is mocked. Reliability, factor structure and item parameters are recalculated live from the response matrix, so what you read in the report is what your participants produced.
Reliability
α · ω · split-half · ICC
Factor
EFA · CFA fit
IRT
Rasch · 2PL · 3PL
Illustrative visual — live modules render your own coefficients.
Operations
Manage participants, cohorts and assignments in one place. Send secure token links, track completion, and keep every action recorded in the audit trail for ethics and compliance review.
Roles
6
Delivery
Link · assignment
Trail
Full audit log
Illustrative visual — live modules render your own coefficients.
Access control
Every screen, action and query is governed by role and organization membership at the database level, not only in the interface.
Platform-wide administration, plans, transactions and system settings.
Members, assessments, participants, reports, subscription and org settings.
Create instruments and run the full psychometric analysis suite.
Administer tests, monitor completion and review participant results.
Read-only access to dashboards, analyses and published reports.
A private portal with only the assessments and results assigned to them.
Who uses it
Scale validation studies, thesis instruments and multi-cohort longitudinal designs with exportable technical appendices.
Selection batteries with fairness checks, norm groups by role family, and standard scores for hiring committees.
Item banking, IRT calibration, DIF screening and norm table production for commercial instruments.
Diagnostic and readiness testing with percentile feedback for learners and cohort dashboards for staff.
API & integrations
Issue hashed API keys per organization, rotate them at any time, and monitor request volume and rate limits from the API dashboard.
POST /api/v1/responses
Authorization: Bearer qsp_live_••••••••
{
"assessment_id": "car-readiness-v3",
"participant_code": "SAT-P0042",
"answers": { "i1": 4, "i2": 2, "i3": 5 }
}
200 OK
{
"raw": 47, "percentage": 78.3,
"z": 0.84, "t": 58.4,
"stanine": 6, "percentile": 80
}Field notes
The technical report used to take our team three weeks in a statistics package. Here the reliability and factor sections are ready the moment data collection closes.
Having DIF screening beside classical item analysis changed how we review a form. Problem items surface before the instrument ever ships.
Token links meant we could field a 40-item scale to 600 respondents without creating a single account for them.
Pricing
Monthly or annual billing in USD. Every plan includes the full analysis suite — tiers differ by workspace capacity and support.
FAQ
Create a workspace, import a dataset or explore the labelled demo instruments, and see a full technical report generated from real responses.