GCE A/L Common General Test common mistakes
GCE A/L Common General Test · Understand the traps and how to avoid them.
Reading a verbal reasoning passage once at normal speed and answering from the general impression of what the passage 'was about' rather than from the exact sentence that settles the question.
The passage feels familiar after one reading, so the brain substitutes gist for evidence; under time pressure the candidate picks the option that matches the overall topic instead of the one that is strictly supported.
What to do instead
Read the question stem first, then return to the passage and underline the single sentence that decides the answer. Reject any option you cannot point to a line for, even if it sounds true in general.
Treating absolute words such as 'always', 'never', 'all', 'only' and 'must' in an answer option as harmless emphasis, and selecting such an option because the passage broadly agrees with it.
Candidates match topic words rather than quantifier strength; a passage that says 'most' or 'many' feels compatible with 'all', and the difference is invisible during fast scanning.
What to do instead
Before choosing, circle every quantifier and modal in the option and check the passage uses the same strength. If the passage says 'some' or 'often', eliminate options with 'all' or 'always' unless the passage itself is absolute.
Doing every numerical question in strict paper order, so a long multi-step word problem consumes several minutes and starves the short ratio or average questions later in the paper.
Candidates treat the paper as a test of completion rather than a test of yield per minute; sunk-cost thinking keeps them on a question once they have written three lines of working.
What to do instead
First pass: solve only questions you can finish in under a minute and mark the rest with a dot. Second pass: return to dotted questions. Abandon any question after roughly 90 seconds of no progress and mark it for a final guess.
Computing a correct intermediate value and then selecting that number as the answer, without checking it against what the question actually asked for.
The intermediate result is the last number written down, so it feels like the answer; questions are deliberately built with the intermediate value among the distractors.
What to do instead
Before starting the arithmetic, write the required unit or quantity at the right margin (per kg, total, percentage, remaining). After computing, re-read the final sentence and confirm the number matches that label.
Answering syllogism and seating-arrangement items from intuition about what is 'usually' true or from a single mental picture, without writing out the constraints.
These items load heavily on working memory; candidates hold three or four conditions in their head, drop one, and then reason confidently from an incomplete model.
What to do instead
Draw the arrangement or write the premises as numbered lines, and convert each 'no A is B' or 'only if' into an explicit symbol. Test each option against the written lines rather than against memory.
Assuming a conditional statement 'if P then Q' also means 'if Q then P', and treating the converse or inverse as valid in deduction and assumption questions.
Everyday reasoning habitually reads conditionals as two-way rules; the fallacy is invisible because the conclusion sounds natural.
What to do instead
Write the rule as an arrow P to Q, then ask separately whether the reverse arrow is stated. Remember only two valid moves: affirm P to conclude Q, and deny Q to conclude not-P. Anything else is invalid unless the passage says otherwise.
Rotating a figure mentally in one step and choosing the option that looks closest, without tracking a distinctive feature such as a dot, shaded corner or arrow through the transformation.
Whole-shape comparison overwhelms attention, and mirror images look almost identical to rotations at a glance, so the eye settles on overall silhouette.
What to do instead
Pick one asymmetric marker on the original and predict where it lands after the stated rotation or fold. Eliminate options where the marker is misplaced, then check a second marker before committing.
Answering general knowledge and current affairs items from a vague association, such as picking the country or person that 'sounds related' to the topic, instead of admitting the item is unknown.
Recognition is mistaken for recall; a familiar name in the options produces a false feeling of knowing, and negative marking is ignored.
What to do instead
Apply a rule before the exam: if you cannot state the fact in one sentence without guessing, leave it or mark it only if there is no penalty. Practise saying 'I do not know this one' during timed mocks.
Spending the same time on a one-mark general knowledge item as on a multi-step reasoning item, ignoring that marks per minute differ sharply across sections.
Candidates apply one uniform pace because they never measured their per-section yield during practice, so the paper's scoring structure is invisible to them.
What to do instead
In the last two weeks of preparation, log time and marks per section across three full mocks. Set a per-section time budget from that data and write it at the top of the paper before starting.
Solving a practical problem as stated but ignoring the real-world constraint implied by it, such as a schedule that requires two events at once or a plan that exceeds the stated budget.
The arithmetic is satisfying and closes the question, so the candidate stops at the calculated number and never tests it against the practical conditions in the stem.
What to do instead
After computing, run a five-second sanity check against each stated constraint (time, money, capacity, order). If any constraint is violated, the option is wrong regardless of the arithmetic.