Common Mistakes That Lower Your Typing Test Score

Key Points

The most common mistakes are technique-based, not effort-based — they're fixable with the right drill.
Looking at the keyboard resets your muscle memory loop every time you do it.
Incorrect finger assignments are often invisible in your scores until you try to push past 60–70 WPM.
Over-correcting errors (immediate backspace every time) trains tentative, interrupted typing.
Practicing too fast before accuracy is solid encodes the errors into your motor programs.

Mistake 1: Looking at the Keyboard

This is the single most common mistake that limits typing speed long-term. When you glance at the keyboard to find a key, you break the visual-motor loop that produces fast typing. Your eyes move, your brain switches to search mode, you locate the key, then re-read where you are in the text. That sequence takes 0.5–2 seconds per occurrence.

More importantly, each glance at the keyboard resets the muscle memory loop. Touch typing works because your fingers know where the keys are from tactile memory, not visual search. Every time you look, you delay developing that tactile memory by one repetition. The fix: commit to never looking down, even if it slows you significantly for one to two weeks. The long-term gain is worth it.

Mistake 2: Wrong Finger Assignments

Many people type at 40–60 WPM using a mix of correct and incorrect finger assignments that they picked up without formal instruction. At those speeds, wrong assignments feel manageable. At 70+ WPM, they become hard ceilings — the awkward reaches can't keep up with the pace.

Common wrong assignment	Correct assignment	Problem it causes
Right index for B	Left index for B	Cross-hand reach at speed
Index for Y (instead of ring)	Right index for Y	Leaves H uncovered
Reaching index for P	Right pinky for P	Slow reach, next key delayed
Middle finger for backspace	Right pinky for backspace	Disrupts right-hand home row

Diagnose this by practicing the alphabet one key at a time and noticing which ones require reaching or visual confirmation. Fix them one by one. See the science of finger placement for the full assignment guide.

Mistake 3: Typing Faster Than Your Accuracy Allows

This is the most common error among people who plateaued at 50–70 WPM. They push speed before their accuracy at that speed is solid, which means every practice session reinforces both the speed and the errors at that speed. Over time, the errors become part of the motor program for those words and become harder to remove.

The correct approach is to build accuracy at each speed level before increasing. If you can't hold 97% accuracy at 60 WPM, don't practice at 65 WPM. The accuracy improvement unlocks speed naturally — you don't need to separately push for it.

Mistake 4: Over-Correcting Every Error

Stopping immediately to correct every single error is a version of perfectionism that hurts typing rhythm. In practice, when you make an error in the middle of a word, stopping and backspacing to the error trains your fingers to type hesitantly — constantly ready to stop. That hesitation shows up as micro-pauses between keystrokes that cap your speed.

A better approach for most situations: finish the word before correcting. Let the flow continue, then correct. The exception is when you're three or four characters into a completely wrong word — in that case, backspacing and starting fresh is usually faster than continuing.

Mistake 5: Skipping Deliberate Practice

Taking the same 1-minute test every day is not deliberate practice. Deliberate practice means targeting your specific weak areas with exercises designed to stress them. If your P key is slow, drill P-heavy words. If your numbers are weak, use the number row test. If your brackets slow you down for coding, practice bracket patterns specifically.

For a structured improvement plan that incorporates deliberate practice into a daily routine, see the step-by-step WPM increase plan. For diagnosing which specific mistakes are limiting your score, read why your typing speed plateaued and how to break through.