<Is there correlation between how people heard of the course and either their university or affiliation..>
This suggests that local circles of friends were already in place before the course has actually started, making it easy to investigate informally other reasons contributing to our students withdrawal. Based upon our personal knowledge of some of these withdrawn participants we note a mixture of: <add social or other factors that you suspect relevant- loss of someone, travel abroad in the holidays, Omrah with family, travel locally in the holidays ..etc>