English to Russian Medical Mathematics & Statistics

Cross-classification analysis will be performed to quantify the level of agreement between the categorisation of estimates (from the online self‑administered and the corresponding interviewer‑administered recall) into thirds of the intake distribution.
The percentage of participants categorised into the same tertile of intake will be calculated.
The relative agreement between the online self-administered and interviewer-administered recalls will also be assessed using cross-classification of intakes to estimate the percentage of participants classified into quartiles as follows: exact agreement (percentage of cases classified into the same quartile), exact agreement plus adjacent (percentage of cases cross-classified into the same or adjacent quartile), disagreement (percentage of cases cross-classified 2 quartiles apart), and extreme disagreement (percentage of cases cross-classified into extreme quartiles).