BJSC Written common mistakes
BJSC Written · Understand the traps and how to avoid them.
Spending more than about a minute on a single arithmetic or reasoning item, then rushing the remaining questions and losing easy marks.
Candidates treat the Preliminary paper as a school test where full working is expected, so they get drawn into one hard calculation and lose track of the overall time budget.
What to do instead
Practise with a strict per-question timer: mark any item still unsolved after roughly 60-75 seconds, move on, and return only after finishing the section. Build a habit of noting the question number on the question paper before skipping.
Leaving OMR answer circles blank or partially shaded, or shading the wrong row after a skipped question.
Candidates answer on the question booklet first and copy to the OMR sheet in a panic at the end, so row alignment breaks once one question is skipped.
What to do instead
Answer directly on the OMR sheet as each question is solved, shade fully with a black ballpoint, and after every ten questions verify that the shaded row number matches the booklet number. Keep one skipped item as a visible gap rather than shifting later answers up.
Guessing on negative-marking items without eliminating any option, thereby turning a small deficit into a large one.
Candidates assume any guess is worth it because a quarter mark seems trivial, forgetting that repeated blind guesses compound into a net loss.
What to do instead
Adopt a rule: guess only when at least two options have been eliminated. Track your guess accuracy in mock tests; if blind guessing is below the break-even rate implied by the negative marking, stop guessing entirely.
Misreading the question stem, especially words such as 'not', 'except', 'least', 'only', and 'most appropriate'.
Time pressure pushes candidates to skim the stem and jump to the options, where a familiar-looking answer confirms the misreading.
What to do instead
Underline the operative word in the stem with the pen before reading the options. For 'not/except' questions, restate the stem in your own words in one short phrase before choosing.
Failing to interpret data in tables, bar charts, or short passages because the candidate reads every number instead of the labels and units first.
Candidates are used to direct computation and do not have a scanning routine for data interpretation, so they misread units, totals, or the year being asked about.
What to do instead
Use a fixed three-step routine: read the title and axis labels, note the unit and the specific row or year asked, then compute. Practise five data sets daily using only the needed figures rather than recalculating everything.
Writing long narrative answers to short-answer or letter-writing questions in the Departmental paper, running out of time before the essay or case-analysis section.
Candidates equate length with marks and start with the question they find easiest, which is usually the descriptive one, leaving too little time for high-weight analytical parts.
What to do instead
Allocate time by marks before starting: divide total minutes by total marks and write the allocation on the top of the answer script. Answer in the order of marks-per-minute value, not in the order printed, and keep to the word or paragraph limit implied by the marks.
Giving general, policy-neutral answers to case studies or departmental problems instead of applying the specific rule, section, or procedure being tested.
Candidates revise only broad theory and lack practice in mapping a scenario to the exact rule, so answers stay abstract and lose the application marks.
What to do instead
Build a one-page summary per topic listing the governing rule, the authority responsible, the time limit, and the consequence of breach. In practice, answer every case in three labelled parts: facts and issue, applicable rule, decision with justification.
Quoting a rule, section number, or definition from memory without verifying it, producing a confident but incorrect citation.
Candidates memorise paraphrases from coaching notes rather than the source text, and under exam pressure the paraphrase is presented as an exact provision.
What to do instead
Revise from the bare official text at least once per cycle and maintain a citation sheet with the exact number, heading, and one-line content. In answers, cite only entries on that sheet; if unsure of the number, state the rule in substance without inventing a citation.
Ignoring the instruction words in departmental questions, such as 'discuss', 'examine', 'justify', or 'suggest measures', and producing a descriptive answer where analysis was demanded.
Candidates prepare topic content but never practise decoding the directive verb, so they reproduce memorised material regardless of what the question asks.
What to do instead
Before writing, circle the directive verb and write beside it the structure it requires, for example discussion means arguments for and against plus a position, and suggest measures means a numbered list of actionable steps. Check the finished answer against that structure.
Poor answer-script presentation: unnumbered paragraphs, no headings, illegible overwriting, and margins used for rough work.
Candidates treat the departmental script as a rough sheet because they practise under timed conditions without a model layout, and examiners cannot locate the points being marked.
What to do instead
Adopt a fixed layout in every practice answer: question number in the margin, a one-line introduction, numbered sub-headings, and a short conclusion. Use a single strike-through for corrections instead of overwriting, and keep rough work on the supplied sheet only.