So, the University’s Institute of Educational Technology set about the task by putting together an age-stratified, gender-balanced cohort of 7,000 students aged between 21 and 100 . There were 2,000 between ages 60 and 69, 1,000 aged 70 and over, and, for comparison, four groups, 1,000 in each, from students respectively in their twenties, thirties, forties and fifties. All were surveyed by detailed and carefully constructed questionnaires.
1More
World Cup's Most Shocking Moments | Watch Free Documentaries Online | DocumentaryZ.com - 0 views
1 - 6 of 6
Showing 20▼ items per page