is there normalisation in ib acio

Correct option is A

Yes, normalization is applied in the IB ACIO Tier-I exam if it is conducted in multiple shifts. Since question difficulty can vary from one shift to another, the normalization process ensures that no candidate is unfairly advantaged or disadvantaged. The normalized scores are calculated using a formula that considers the average and standard deviation of marks across all shifts. These adjusted scores are then used to shortlist candidates for Tier-II.