Doesn't suit? No problem! You can return within 30 days
You won't go wrong with a gift voucher. The gift recipient can choose anything from our offer.
30-day return policy
This paper considers the possible effects of making inferences about individuals from aggregate data. It assumes a knowledge of regression analysis, and explores the utility of techniques designed to make the inferences in causal modelling more reliable, including a comparison between ecological regression models and ecological correlation.