Clerical Skills
Proofing
Spotting errors in alphanumeric strings, transposed numbers, or repeating letters.
Questions use 8–12 character alphanumeric strings, lists of 4–6 paired code sets, and short prose passages. Traps are single-character swaps positioned mid-string to be missed by fast readers.
What the exam tests
Alike or Different Comparisons
Two side-by-side alphanumeric strings (e.g., JKLBVY74MN vs. JKLBUY74MN); determine if they are identical or different.
Accuracy Counting
Given a list of paired alphanumeric sets, count exactly how many pairs are identical to each other.
Internal Word Pattern Logic (Repeating Letters)
Scan a sentence to count how many words contain a letter repeated more than once (e.g., 'Jimmy' has two M's; 'breakfast' has two A's).
Error Identification (Spelling and Grammar)
Scan specific lines of text to count the exact number of misspelled words or punctuation errors present.
Rapid Systematic Scanning
Key rules
- ›Move through strings character by character from left to right. Never jump ahead.
- ›Use a tally mark for counting questions rather than holding counts in memory.
Common traps
- !Losing your place mid-string and re-starting from the wrong position.
Reversed Number Recognition
Key rules
- ›Flag any sequence of two or more digits and verify the order matches the reference string.
- ›Common swap: 76 ↔ 67, 89 ↔ 98.
Common traps
- !Glancing at digits and recognizing the same numbers without checking their order.
Character Substitution Detection
Key rules
- ›Watch for visually similar character swaps: U vs. V, I vs. 1, O vs. 0, B vs. 8.
- ›Slow down at any character that looks unusual and treat it as a potential substitution.
Common traps
- !Speed-reading through a string and accepting a near-match as identical.
Repeating Letter Counting
Key rules
- ›For each word, mentally tally each letter, and mark the word only if any single letter appears more than once.
- ›Scan the full word before deciding; a repeated letter may appear at the start and end (e.g., 'radar').
Common traps
- !Counting words with two different repeated letters as only one instance.
Analytical Checking (Data vs. Meaning)
Key rules
- ›Read strings as raw data, not as words or meanings. Reading them as data prevents the brain from auto-correcting errors.
- ›For spelling/grammar checks, treat each word as an isolated unit, not part of a sentence.
Common traps
- !Reading for comprehension and unconsciously correcting errors before noticing them.
Try one
Compare the two strings below. Are they alike or different? JKLBVY74MN JKLBUY74MN
Scanning left to right, every character matches until position 5: V vs. U. That is the only mismatch, so the strings differ in exactly one character.
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