Brief description of the procedure

Authors
Jörg A. Prieler & Christian Czihak

Area(s) of application
Aptitude diagnostics in the area of performance (can be used for all questions in which information about general intelligence plays a role), clinical psychology, work, industrial and organizational psychology, aviation psychology.
The aim of the test development is the differentiated recording of generally significant areas of ability, which are located in a hierarchical structure at a medium level of abstraction. This procedure for analyzing the intelligence structure is made up of the following eight groups of tasks: Holistic thinking (language-free matrix test), basic arithmetic (= numerical intelligence function), physical understanding, spatial perception, problem-solving ability (number sequences), technical understanding, text comprehension with associated memorization skills, ability to concentrate.

Execution
The task groups are completed within a time limit. Each group of tasks is preceded by a standardized instruction with examples of exercises. The correct answer is usually selected according to the multiple-choice principle; some tasks are answered by entering a number. All tasks in a task group are on one page, so that tasks that have already been answered can be changed several times within the respective time limit.

Execution time
Total test form: approx. 30 or 50 minutes (normal form or long form)

Evaluation
The number of correct solutions (raw scores) for the individual task groups is recorded. In the evaluation, the percentile ranks (norm comparisons) calculated from the raw scores are displayed for each item group. The processing time for the entire test can also be taken from the test protocol.

Reliability
Die innere Konsistenz (Cronbach’s Alpha) der einzelnen Aufgabengruppen liegt zwischen r=.76 (Textverständnis/Merkfähigkeit) und r=.92 (Grundrechnen). Für den Gesamttest wurde ein Wert von r=.96 ermittelt.

Validity
Konstruktvalidität wurde durch faktorenanalytische Untersuchungen belegt. Untersuchungen zeigen hohe Korrelationen ähnlichen Leistungstests. Ebenso konnte die Diskriminante Validität (die Korrelation zwischen Testergebnis und Lehrerurteil bei Piloten Schüler*innen war .79, N= 65) eindrucksvoll bestätigt werden.

Evaluation / Standards
Für die Testform stehen Computernormen österreichischer Erwachsener im Umfang von 1487 Personen zur Verfügung, sowie Normen von Pilot*innen (N=524), Flugtechniker*innen (N=145) & Cabin Crew (235), die auch getrennt nach Alter, Bildung und Geschlecht vorliegen.

Execution methods
Possible on PCs/laptops/touchpads without restriction. On mobile phones only to a limited extent, as entering data with a finger is a bit tedious (but possible in principle). There is an Online & Offline (dongle protected) and P&P variant (manual data entry required).

Languages
German, English

Security and data protection
The IR&C system meets the latest IT requirements ("banking standard"). As an additional security measure, personal codes can also be assigned instead of the specific names of the persons tested. Customers only need to provide sufficient PCs/laptops/touchpads with or without an Internet connection (on/off-line capable, also intranet-capable).