Attention
Hard
DRT
Signal Processing (DLR)
Learn the rules, apply them fast
DLR Signal Processing (DRT): the Stimulus Numpad highlights one of the four corner keys (7, 9, 1, 3) in a colour, and each colour is assigned a rule — Direct, Diagonal, Horizontal or Vertical. Press the resulting key on the Response Numpad. The colour-to-rule assignments are shown before each series and change between them, so they must be re-memorised. Tests concentration and logical rule application.
Duration
~6 min
Length
30 questions
Difficulty
Hard
This test is part of Pro.
What to expect
- Two numpads: a Stimulus pad above, a Response pad below.
- Four rules — Direct, Diagonal (1↔9, 3↔7), Horizontal (1↔3, 7↔9) and Vertical (1↔7, 3↔9).
- A rules screen before each series, with a Demonstrate button for each.
- Rules that change between series and must be re-learned.
What it measures
- Concentration
- Logical rule application
- Memorising and switching rule sets
Instructions
- 1Memorise which colour carries which rule before starting the series.
- 2Read the colour first, then apply its rule to the highlighted key.
- 3Press the corner key on the lower pad, or use the 7, 9, 1 and 3 keys.
- 4Expect the assignments to change completely at the next series.
Tips
- Learn the four mappings as pairs — diagonal 1↔9 and 3↔7, horizontal 1↔3 and 7↔9, vertical 1↔7 and 3↔9.
- The hardest part is unlearning the previous series, not learning the new one.
- Use the Demonstrate buttons on the rules screen until each mapping is automatic.
Format: Rule application · 2 series · 30 questions