Simple Drawings and Hidden Figures
Key Takeaways
- Simple Drawings gives you 100 items in 2 minutes (~1.2 seconds each), so trained pattern recognition and instant commitment beat perfectionism.
- Hidden Figures gives 50 items in 5 minutes (~6 seconds each) and asks you to locate a target line shape hidden inside a busy figure.
- Both subtests are unscored-skipped-friendly only if you are slow; the smarter play is fast, controlled accuracy because blank items earn nothing.
- Anchor on one defining feature (orientation, count, closure, symmetry) instead of comparing every line in every option.
- These speed subtests feed composite scores differently from math and reading, so consistent rhythm matters more than agonizing over single items.
What These Subtests Test
The Selection Instrument for Flight Training (SIFT) opens with two raw visual-processing subtests: Simple Drawings (SD) and Hidden Figures (HF). These are administered first because they measure perceptual speed, not knowledge. Your strategy here is the opposite of the Math Skills and Mechanical Comprehension subtests later: you are reacting, not reasoning.
Section Snapshot
| Subtest | Questions | Time | Time Per Item |
|---|---|---|---|
| Simple Drawings (SD) | 100 | 2 min | ~1.2 sec |
| Hidden Figures (HF) | 50 | 5 min | ~6 sec |
No one finishes all 100 SD items with careful study. The U.S. Army Aviation Center publishes that you should answer as many as possible accurately rather than rush blindly. Both subtests are not computer-adaptive (unlike the later Math and Mechanical sections), so every item carries the same weight.
Simple Drawings: Find the Odd One Out
Each SD item shows five small line drawings; four follow a shared rule and one breaks it. Click the different one and advance instantly.
The 4-Step Process
- Lock onto one obvious feature (e.g., does each shape point the same way?).
- Sweep all five options checking only that feature.
- If one figure breaks the pattern, commit and move on, no second-guessing.
- If nothing pops in ~1.5 seconds, pick your best read and keep your rhythm.
Features That Usually Break a Pattern
| Feature | What To Look For |
|---|---|
| Orientation | One shape tilted or mirrored differently |
| Count | One figure has an extra dot, line, or segment |
| Position | One element sits on a different side |
| Symmetry | One figure breaks mirror or rotational balance |
| Closure | One outline is open while the rest are closed |
Worked Example
Five arrows point right except one that points right but has a doubled tail feather. Scanning for count (number of tail strokes) isolates it in under a second; scanning for direction wastes time because all five share it. Lesson: pick the feature most likely to vary, not the first you notice.
Hidden Figures: Embedded Target Shapes
HF reverses the task. You are given a simple target outline (labeled A through E) and a complex figure full of crisscrossing lines, and you must find which target is hidden, same size and same orientation, inside the busy figure.
Better HF Technique
| Step | Action |
|---|---|
| 1 | Identify the target's sharpest angle or most unusual corner |
| 2 | Scan the complex figure for that exact intersection or endpoint |
| 3 | Ignore decorative extra lines until an anchor appears |
| 4 | Trace the full outline only after the anchor point matches |
The target never appears rotated or resized, so reject any candidate that requires flipping or scaling. That single rule eliminates the most common HF trap.
Common Mistakes Across Both Subtests
- Checking every option twice when one feature already settles it
- Hunting tiny differences before checking large, obvious ones
- Freezing on a hard item and bleeding 5+ seconds you do not have
- Random panic-clicking the final 20 items
Training Protocol
Do not do untimed drills. Replicate the pressure:
- 2-minute bursts of odd-one-out drills (target 40-60 SD items)
- 5-minute bursts of hidden-figure drills (target all 50 HF items)
- Review only after the timer stops, never during
That trains the real SIFT skill: making acceptable decisions fast, then accepting them and moving on.
Where SD and HF Fit in the Whole SIFT
The SIFT runs as a single computer-based session of roughly 3 hours (including check-in, an optional 15-minute break, and the test itself). Scaled scores range from 20 to 80, and most aviation programs treat 40 as the floor, though some commissioning routes look for higher composites. You get only two lifetime attempts with a mandatory 180-day wait between them, so a weak first try is costly. SD and HF are non-adaptive and front-loaded, meaning a strong, calm start protects the energy you need for the longer reasoning subtests later.
Eye-Movement Discipline
The biggest hidden time leak on SD and HF is backtracking, your eyes returning to a figure you already cleared. Train a one-pass scan:
| Habit | Cost | Replacement |
|---|---|---|
| Re-reading a settled item | 1-2 sec each | Commit and never look back |
| Counting lines twice | doubles per-item time | Trust the first count |
| Comparing options out of order | scatters attention | Always scan left-to-right |
Decision Threshold Rule
Give yourself a private cutoff: if an SD item is not solved by roughly the second 'beat' (~1.5 sec), pick the figure that feels most off and advance. On HF, if no anchor corner matches within ~8 seconds, choose your strongest candidate. A wrong fast answer costs the same as a blank, but a slow correct answer can cost you the next three items.
Sample Pacing Plan
- SD: aim to clear ~50 quality items in 2 minutes rather than rush-click all 100.
- HF: aim for all 50 by spending ~6 seconds each, but never more than ~10 on any one.
- Reset breath: between the two subtests, one slow exhale resets your tempo before HF demands a slightly calmer, more deliberate scan than SD.
On a Simple Drawings item, what is the most efficient first move?
In Hidden Figures, the target shape inside the complex figure will always appear in what form?
Why is fast, controlled accuracy preferred over panic-clicking the final items on these subtests?