The Third-Passage Collapse
Aisha has eight weeks before her test. Her last two full Reading mocks scored 19/40 and 21/40. Her section log from mock 2: Passage 1 - 22 minutes, 8/13 correct; Passage 2 - 30 minutes, 9/14 correct; Passage 3 - 8 minutes, 2/13 correct, with 6 items left blank. Item-level analysis across both mocks: 'locate and match explicit detail' 82% correct; 'vocabulary in context' 71%; 'infer the writer's attitude' 46%. On an untimed re-do of the same inference items she scored 78%. She reads every passage word by word and refuses to skip any item, saying: 'If I leave one blank I've lost the mark anyway.' She has 10 hours a week available and wants to know what to change first.
1. Using her numbers, identify the single biggest constraint on Aisha's score. Is it reading speed, inference skill, or something else? Show the arithmetic.
Read the worked answer
It is time allocation, not inference skill.
- Inference accuracy rises from 46% to 78% when untimed. A skill deficit does not disappear when the clock is removed; an access problem does. She can already do the reasoning - she cannot reach it in time.
- The distribution of loss proves the point. Passage 3 yielded 2/13 with 6 blanks: roughly 11 marks lost in one passage, against 5 lost in Passage 1 and 5 in Passage 2 combined.
- Her belief about blanks is the mechanism. A blank is a guaranteed zero; a guess on a four-option item is worth roughly 0.25 marks in expectation. With 6 blanks per mock she is donating about 1.5 marks per paper for nothing.
- Passage 1 at 8/13 in 22 minutes is poor value: her detail accuracy is already 82%, so further time there buys little.
Conclusion: the highest-yield change is a hard time budget (about 18/19/22 minutes plus 1 minute of transfer) with two passes, not more inference drilling.
2. Write the decision rule Aisha should follow when an item stalls, and state how she should judge after two weeks whether the rule is working.
Read the worked answer
The rule:
- First pass: answer every item she can settle in under about 60–75 seconds. Anything slower gets a provisional letter marked in the margin and she moves on.
- Never leave a blank - the provisional letter stands if she does not return.
- Second pass: return only to flagged items, hardest-last, and stop when the budget for that passage is gone.
Measuring it:
Do not judge by total score. Total score is noisy at n = 40 and will tempt her to abandon the rule after one bad paper. Judge by process metrics over three mocks:
- blanks per paper (target: 0–1, down from 6);
- items attempted in Passage 3 (target: 13/13);
- Passage 3 accuracy (should rise even if it stays below Passage 1).
If blanks hit zero and Passage 3 accuracy has not moved after three papers, the bottleneck has shifted and inference drilling becomes the right next investment. Until then, it is premature.
3. Name one thing Aisha should not spend her 10 weekly hours on, and justify the exclusion from her data.
Read the worked answer
Untimed inference practice, and vocabulary lists.
- She already scores 78% on inference items untimed. More untimed inference work rehearses a skill she has. The transfer problem is speed of access, which untimed practice does not train - it may even reinforce word-by-word reading.
- Vocabulary in context sits at 71%, above her overall average and well above inference. It is not where the marks are leaking.
Better use of the hours: timed two-pass drills with a visible clock, then a review pass in which she reads only the items she flagged and writes down why each stalled (unfamiliar wording, over-reading the options, refusing to move on). The review is where the behaviour changes; the drill alone just repeats it.