I attended the selection in February. Here some remaining impressions:
English: mainly "grammar-book" knowledge e.g. terms, conditional clauses, prepositions
Mathematics: mainly equations, rule of proportion and aviation related topics (e.g. aircraft with GS 360kts in FL 360 should descent to FL 240 within 30NM. calculate ROD) the major problem during this test is the short time factor.
Mental Arithmetic: quite easy, simple multiply / divide / adding / subtracting tasks within the span from 0 – 1000 and time calculations e.g. 07:26lt – 2hrs14minutes
Aviation Proficiency: roughly 60 questions from all atpl-subjects. Not too easy!
Logical Reasoning: several tasks with complex symbols, numerical series
Spatial Orientation: tasks with cubes and other geometrical bodies
Perception: see and remember the number geometric bodies (squares, circles & triangles) in very short time
Concentration: find all 83s out of 5-digit columns
e.g.
15986
39586
78321
I prepared myself with a commercial software from skytest (the airbelin / tyrolean / dca program) and I think it came quite close to the real test. Those of you who use skytest to prepare for any selection process conducted by interpersonal should focus on the following tests:
Balkenwaage
Formentest
Buchstabenblocktest (don´t worry the interpersonal version is much easier!!!!)
Multitasking with instruments
Würfelklappen
Würfelvergleichstest
Zahlenblocktest
Zahlenreihen
For the screening you´ll get a detailed briefing package. Although you are screened as 320 pilot on a 320 simulator, the main focus is raw data flying. Prepare yourself accurately with it!
You will fly with a GWI CPT who acts as your "third hand" only. This means he won´t make any standard or deviation callouts but you can command some actions to him like set HDG 180, pull speed 220kts, set STR VOR with Course 250 in RADNAV etc…..
The atmosphere during the whole selection procedure is very relaxed and friendly. No one wants to push you into failures but nerver-the-less the failure rate was approximately 50%.
Good luck!