Grammar Item Flaw or Student Error?
A Grade 10 Sindhi grammar test has 40 students and 30 items. Item 14 asks students to complete 'Ramu ain Shyamu ____ ghar' with options 'aayo' (singular) and 'aaya' (plural). The prescribed rule taught in class says a coordinated subject joined by 'ain' takes a plural verb. Twenty-four students chose 'aayo'; their written reason was 'the last name is singular.' The teacher must decide whether to drop the item, reteach the rule, or teach a test-taking strategy. The item is worth 1 mark; the class mean is 21/30. The head of department asks for a written justification because parents have complained that the item is unfair.
1. Analyse whether Item 14 is a flawed item or a genuine student error. Consider rule clarity, distractor plausibility, and the students' stated reason.
Read the worked answer
It is a genuine error if the rule was taught explicitly and the textbook uses the same coordinated structure. The distractor 'aayo' is plausible because students may apply proximity agreement, but plausibility alone does not make an item unfair. The stated reason shows a consistent wrong rule, not confusion about the item's wording. However, if the class has seen only single subjects and never a coordinated subject with 'ain', the item tests transfer without instruction. Check the textbook exercise and lesson notes. If the rule and an example were taught, keep the item; if not, drop or reteach. The complaint is about fairness, so evidence of teaching matters more than the score.
2. Rewrite Item 14 as a clearer item that still tests the same rule but reduces construct-irrelevant difficulty. Explain one change.
Read the worked answer
Use a short context and parallel options: 'Ramu ain Shyamu roz subah ____ ghar. (a) aayo (b) aaya' with the instruction 'Choose the verb that agrees with the coordinated subject.' The change is to keep both names in the same order and add 'roz subah' so the sentence is natural, not a fragment. Do not bold 'ain' or give the rule in the stem, because that would give away the answer. A second acceptable version asks students to explain the choice after selecting, which separates rule knowledge from guessing.
3. What feedback plan would you use for the 24 students without lowering the item's demand?
Read the worked answer
Return the item without the answer; ask students to underline the subject and circle the coordinating word 'ain'. Then have pairs state the rule in their own words and test it on one new sentence. Only then reveal 'aaya'. The feedback names the error pattern, proximity agreement, and gives a checking routine: find the full subject, not the nearest noun. A short re-test item with different names checks transfer. Avoid simply saying 'learn the rule'; the students already applied a rule, just the wrong one.