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The reason the trend line drops over 60 is that there are fewer people over 60 taking the test and thus, the questionable responses have a bigger influence. If
by altvali 4y ago
The reason the trend line drops over 60 is that there are fewer people over 60 taking the test and thus, the questionable responses have a bigger influence. If you sample less from that cohort, it will be less likely that your sample is representative.
- hobofan 4y agoYes, while I like the article, it kind of distorts the evaluation in the original paper, where they don't only show the trend line but also it's 95% confidence interval (which very obviously significantly widens with age).