Make informed selection decisions
with an economical screening of cognitive performance, the best predictor of career and training success. Ideal for efficient and accurate personnel selection and development—with digital implementation, automatic evaluation, and clear results reports.
- Duration: approx. 18 min. (adaptive) / approx. 30 min. (classic)
- Items: 21
- Areas tested: verbal · numerical · figural-spatial
- Reliability: α = .77–.85
- Dropout rate: less than 3%
- Results: Report per person + HR overview

































ITB-ICOS at a glance
Everything you need for fast, fair, and scalable screening
Appropriate level of difficulty for all target groups
The selection of tasks adapts to the performance level. This increases differentiation and supports a positive testing experience.
Economical with high informative value
The short test time and adaptive process enable efficient screening – even for large volumes of applications.
Strong foundation for selection decisions
ICOS measures cognitive performance as a key success factor for learning and performance.
Varied task formats
The test combines verbal, numerical, and figural-spatial tasks in mixed order – for a broad picture of cognitive performance.
Clear results for decisions
Automated result reports are available immediately after the test is completed – including a clear presentation of results for HR.
Development based on DIN33430
Quality criteria and quality assurance are transparently documented; we provide more detailed information on request.
What does ITB-ICOS measure?
ITB-ICOS assesses analytical competence: drawing correct conclusions from information and solving new problems.
Verbal skills
Understanding information from texts and drawing logical conclusions
Numerical skills
Applying numerical logic and recognizing connections
Figurative-visual skills
Confidently processing patterns and spatial relationships
For which target groups is ITB-ICOS suitable?
Education & study
- Efficient screening of large numbers of applications
- Focus on potential and analytical competence
- Good complement to interviews, assessment centers and other online tests
Specialists & managers
- Fast, robust additional information on cognitive performance
- Can be easily combined with other diagnostic modules
- Supports consistent decisions across teams/locations
How ITB-ICOS works
Invite
Create candidates in IONA or via applicant management and invite them to take the test via a link.
Assess
Participants complete the test online. The adaptive process ensures appropriate tasks and efficient testing time.
Evaluate
Once completed, the results are automatically available – including a results report for each person.
Decide
HR receives a compact overview of all results and can make decisions faster, more consistently and more transparently.
View sample tasks
Get an impression of the task format, operating logic and difficulty level:




Quality & psychological standards
Reliability: stable results for screening decisions.
Good to very good reliability values support reliable interpretation.
Validity: relevant correlations for your target groups.
Evidence of correlations with established procedures, school grades and other criteria.
Factor structure: confirmed
The test reliably measures intelligence through numerical, verbal, and figural-spatial skills.
Fairness: systematic checks for bias.
We conduct regular item analyses (e.g., DIF) to ensure equitable measurement.
Manual & Documentation.
We are happy to provide the detailed, DIN 33430-compliant manual upon request.
- Duration: approx. 18 min. (adaptive) / approx. 30 min. (classic)
- Items: 21
- Areas tested: verbal · numerical · figural-spatial
- Reliability: α = .77–.85
- Dropout rate: less than 3%
- Results: Report per person + HR overview
Experience ITB-ICOS live
We will show you ITB-ICOS – from invitation to assessment to results report.